v0.0.168

.idea/goext.iml

@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="WEB_MODULE" version="4">
-  <component name="Go" enabled="true" />
+  <component name="Go" enabled="true">
+    <buildTags>
+      <option name="goVersion" value="1.19" />
+    </buildTags>
+  </component>
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
     <orderEntry type="inheritedJdk" />

README.md

@@ -11,13 +11,14 @@ Potentially needs `export GOPRIVATE="gogs.mikescher.com"`
 ### Packages:
 
 | Name         | Maintainer | Description                                                                                                   |
-|-------------|------------|---------------------------------------------------------------------------------------------------------------|
+|--------------|------------|---------------------------------------------------------------------------------------------------------------|
 | langext      | Mike       | General uttility/helper functions, (everything thats missing from go standard library)                        |
 | mathext      | Mike       | Utility/Helper functions for math                                                                             |
 | cryptext     | Mike       | Utility/Helper functions for encryption                                                                       |
 | syncext      | Mike       | Utility/Helper funtions for multi-threading / mutex / channels                                                |
 | dataext      | Mike       | Various useful data structures                                                                                |
 | zipext       | Mike       | Utility for zip/gzip/tar etc                                                                                  |
+| reflectext   | Mike       | Utility for golagn reflection                                                                                 |
 |              |            |                                                                                                               |
 | mongoext     | Mike       | Utility/Helper functions for mongodb                                                                          |
 | cursortoken  | Mike       | MongoDB cursortoken implementation                                                                            |

_data/version.sh

@@ -23,6 +23,8 @@ fi
 
 git pull --ff
 
+go get -u ./...
+
 curr_vers=$(git describe --tags --abbrev=0 | sed 's/v//g')
 
 next_ver=$(echo "$curr_vers" | awk -F. -v OFS=. 'NF==1{print ++$NF}; NF>1{if(length($NF+1)>length($NF))$(NF-1)++; $NF=sprintf("%0*d", length($NF), ($NF+1)%(10^length($NF))); print}')
@@ -32,6 +34,8 @@ echo "> Current Version: ${curr_vers}"
 echo "> Next    Version: ${next_ver}"
 echo ""
 
+printf "package goext\n\nconst GoextVersion = \"%s\"\n\nconst GoextVersionTimestamp = \"%s\"\n" "${next_ver}" "$( date +"%Y-%m-%dT%H:%M:%S%z" )" > "goextVersion.go"
+
 git add --verbose .
 
 msg="v${next_ver}"

bfcodegen/enum-generate.go

@@ -3,11 +3,15 @@ package bfcodegen
 import (
 	"errors"
 	"fmt"
+	"gogs.mikescher.com/BlackForestBytes/goext"
 	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/cryptext"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/rext"
 	"io"
 	"os"
+	"path"
+	"path/filepath"
 	"regexp"
 	"strings"
 	"time"
@@ -21,6 +25,7 @@ type EnumDefVal struct {
 
 type EnumDef struct {
 	File         string
+	FileRelative string
 	EnumTypeName string
 	Type         string
 	Values       []EnumDefVal
@@ -32,6 +37,8 @@ var rexEnumDef = rext.W(regexp.MustCompile("^\\s*type\\s+(?P<name>[A-Za-z0-9_]+)
 
 var rexValueDef = rext.W(regexp.MustCompile("^\\s*(?P<name>[A-Za-z0-9_]+)\\s+(?P<type>[A-Za-z0-9_]+)\\s*=\\s*(?P<value>(\"[A-Za-z0-9_:]+\"|[0-9]+))\\s*(//(?P<descr>.*))?.*$"))
 
+var rexChecksumConst = rext.W(regexp.MustCompile("const ChecksumGenerator = \"(?P<cs>[A-Za-z0-9_]*)\""))
+
 func GenerateEnumSpecs(sourceDir string, destFile string) error {
 
 	files, err := os.ReadDir(sourceDir)
@@ -39,17 +46,46 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 		return err
 	}
 
+	oldChecksum := "N/A"
+	if _, err := os.Stat(destFile); !os.IsNotExist(err) {
+		content, err := os.ReadFile(destFile)
+		if err != nil {
+			return err
+		}
+		if m, ok := rexChecksumConst.MatchFirst(string(content)); ok {
+			oldChecksum = m.GroupByName("cs").Value()
+		}
+	}
+
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return v.Name() != path.Base(destFile) })
+	files = langext.ArrFilter(files, func(v os.DirEntry) bool { return strings.HasSuffix(v.Name(), ".go") })
+	langext.SortBy(files, func(v os.DirEntry) string { return v.Name() })
+
+	newChecksumStr := goext.GoextVersion
+	for _, f := range files {
+		content, err := os.ReadFile(path.Join(sourceDir, f.Name()))
+		if err != nil {
+			return err
+		}
+		newChecksumStr += "\n" + f.Name() + "\t" + cryptext.BytesSha256(content)
+	}
+
+	newChecksum := cryptext.BytesSha256([]byte(newChecksumStr))
+
+	if newChecksum != oldChecksum {
+		fmt.Printf("[EnumGenerate] Checksum has changed ( %s -> %s ), will generate new file\n\n", oldChecksum, newChecksum)
+	} else {
+		fmt.Printf("[EnumGenerate] Checksum unchanged ( %s ), nothing to do\n", oldChecksum)
+		return nil
+	}
+
 	allEnums := make([]EnumDef, 0)
 
 	pkgname := ""
 
 	for _, f := range files {
-		if !strings.HasSuffix(f.Name(), ".go") {
-			continue
-		}
-
 		fmt.Printf("========= %s =========\n\n", f.Name())
-		fileEnums, pn, err := processFile(f.Name())
+		fileEnums, pn, err := processFile(sourceDir, path.Join(sourceDir, f.Name()))
 		if err != nil {
 			return err
 		}
@@ -67,7 +103,7 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 		return errors.New("no package name found in any file")
 	}
 
-	err = os.WriteFile(destFile, []byte(fmtOutput(allEnums, pkgname)), 0o755)
+	err = os.WriteFile(destFile, []byte(fmtOutput(newChecksum, allEnums, pkgname)), 0o755)
 	if err != nil {
 		return err
 	}
@@ -89,7 +125,7 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 	return nil
 }
 
-func processFile(fn string) ([]EnumDef, string, error) {
+func processFile(basedir string, fn string) ([]EnumDef, string, error) {
 	file, err := os.Open(fn)
 	if err != nil {
 		return nil, "", err
@@ -119,8 +155,15 @@ func processFile(fn string) ([]EnumDef, string, error) {
 		}
 
 		if match, ok := rexEnumDef.MatchFirst(line); ok {
+
+			rfp, err := filepath.Rel(basedir, fn)
+			if err != nil {
+				return nil, "", err
+			}
+
 			def := EnumDef{
 				File:         fn,
+				FileRelative: rfp,
 				EnumTypeName: match.GroupByName("name").Value(),
 				Type:         match.GroupByName("type").Value(),
 				Values:       make([]EnumDefVal, 0),
@@ -159,8 +202,8 @@ func processFile(fn string) ([]EnumDef, string, error) {
 	return enums, pkgname, nil
 }
 
-func fmtOutput(enums []EnumDef, pkgname string) string {
+func fmtOutput(cs string, enums []EnumDef, pkgname string) string {
-	str := "// Code generated by permissions_gen.sh DO NOT EDIT.\n"
+	str := "// Code generated by enum-generate.go DO NOT EDIT.\n"
 	str += "\n"
 	str += "package " + pkgname + "\n"
 	str += "\n"
@@ -168,6 +211,9 @@ func fmtOutput(enums []EnumDef, pkgname string) string {
 	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/langext\"" + "\n"
 	str += "\n"
 
+	str += "const ChecksumGenerator = \"" + cs + "\"" + "\n"
+	str += "\n"
+
 	str += "type Enum interface {" + "\n"
 	str += "    Valid() bool" + "\n"
 	str += "    ValuesAny() []any" + "\n"
@@ -202,7 +248,7 @@ func fmtOutput(enums []EnumDef, pkgname string) string {
 
 		str += "// ================================ " + enumdef.EnumTypeName + " ================================" + "\n"
 		str += "//" + "\n"
-		str += "// File:       " + enumdef.File + "\n"
+		str += "// File:       " + enumdef.FileRelative + "\n"
 		str += "// StringEnum: " + langext.Conditional(hasStr, "true", "false") + "\n"
 		str += "// DescrEnum:  " + langext.Conditional(hasDescr, "true", "false") + "\n"
 		str += "//" + "\n"

bfcodegen/enum-generate_test.go

@@ -0,0 +1,15 @@
+package bfcodegen
+
+import (
+	"testing"
+)
+
+func TestApplyEnvOverridesSimple(t *testing.T) {
+
+	err := GenerateEnumSpecs("/home/mike/Code/reiff/badennet/bnet-backend/models", "/home/mike/Code/reiff/badennet/bnet-backend/models/enums_gen.go")
+	if err != nil {
+		t.Error(err)
+		t.Fail()
+	}
+
+}

confext/confParser.go

@@ -178,9 +178,9 @@ func parseEnvToValue(envval string, fullEnvKey string, rvtype reflect.Type) (ref
 		if strings.TrimSpace(strings.ToLower(envval)) == "true" {
 			return reflect.ValueOf(true).Convert(rvtype), nil
 		} else if strings.TrimSpace(strings.ToLower(envval)) == "false" {
-			return reflect.ValueOf(true).Convert(rvtype), nil
-		} else if strings.TrimSpace(strings.ToLower(envval)) == "1" {
 			return reflect.ValueOf(false).Convert(rvtype), nil
+		} else if strings.TrimSpace(strings.ToLower(envval)) == "1" {
+			return reflect.ValueOf(true).Convert(rvtype), nil
 		} else if strings.TrimSpace(strings.ToLower(envval)) == "0" {
 			return reflect.ValueOf(false).Convert(rvtype), nil
 		} else {

go.mod

@@ -4,21 +4,21 @@ go 1.19
 
 require (
 	github.com/jmoiron/sqlx v1.3.5
-	go.mongodb.org/mongo-driver v1.11.1
+	go.mongodb.org/mongo-driver v1.12.0
-	golang.org/x/crypto v0.4.0
+	golang.org/x/crypto v0.11.0
-	golang.org/x/sys v0.3.0
+	golang.org/x/sys v0.10.0
-	golang.org/x/term v0.3.0
+	golang.org/x/term v0.10.0
 )
 
 require (
-	github.com/golang/snappy v0.0.1 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
-	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/klauspost/compress v1.16.7 // indirect
-	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
+	github.com/montanaflynn/stats v0.7.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
-	github.com/xdg-go/scram v1.1.1 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
-	github.com/xdg-go/stringprep v1.0.3 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
-	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
+	github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sync v0.3.0 // indirect
-	golang.org/x/text v0.5.0 // indirect
+	golang.org/x/text v0.11.0 // indirect
 )

go.sum

@@ -5,12 +5,20 @@ github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfC
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
+github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=
 github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ=
 github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/klauspost/compress v1.16.5 h1:IFV2oUNUzZaz+XyusxpLzpzS8Pt5rh0Z16For/djlyI=
+github.com/klauspost/compress v1.16.5/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
+github.com/klauspost/compress v1.16.6 h1:91SKEy4K37vkp255cJ8QesJhjyRO0hn9i9G0GoUwLsk=
+github.com/klauspost/compress v1.16.6/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
+github.com/klauspost/compress v1.16.7 h1:2mk3MPGNzKyxErAw8YaohYh69+pa4sIQSC0fPGCFR9I=
+github.com/klauspost/compress v1.16.7/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -22,6 +30,8 @@ github.com/mattn/go-sqlite3 v1.14.6 h1:dNPt6NO46WmLVt2DLNpwczCmdV5boIZ6g/tlDrlRU
 github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
 github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe h1:iruDEfMl2E6fbMZ9s0scYfZQ84/6SPL6zC8ACM2oIL0=
 github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
+github.com/montanaflynn/stats v0.7.1 h1:etflOAAHORrCC44V+aR6Ftzort912ZU+YLiSTuV8eaE=
+github.com/montanaflynn/stats v0.7.1/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -35,31 +45,92 @@ github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
 github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
 github.com/xdg-go/scram v1.1.1 h1:VOMT+81stJgXW3CpHyqHN3AXDYIMsx56mEFrB37Mb/E=
 github.com/xdg-go/scram v1.1.1/go.mod h1:RaEWvsqvNKKvBPvcKeFjrG2cJqOkHTiyTpzz23ni57g=
+github.com/xdg-go/scram v1.1.2 h1:FHX5I5B4i4hKRVRBCFRxq1iQRej7WO3hhBuJf+UUySY=
+github.com/xdg-go/scram v1.1.2/go.mod h1:RT/sEzTbU5y00aCK8UOx6R7YryM0iF1N2MOmC3kKLN4=
 github.com/xdg-go/stringprep v1.0.3 h1:kdwGpVNwPFtjs98xCGkHjQtGKh86rDcRZN17QEMCOIs=
 github.com/xdg-go/stringprep v1.0.3/go.mod h1:W3f5j4i+9rC0kuIEJL0ky1VpHXQU3ocBgklLGvcBnW8=
+github.com/xdg-go/stringprep v1.0.4 h1:XLI/Ng3O1Atzq0oBs3TWm+5ZVgkq2aqdlvP9JtoZ6c8=
+github.com/xdg-go/stringprep v1.0.4/go.mod h1:mPGuuIYwz7CmR2bT9j4GbQqutWS1zV24gijq1dTyGkM=
 github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d h1:splanxYIlg+5LfHAM6xpdFEAYOk8iySO56hMFq6uLyA=
 github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d/go.mod h1:rHwXgn7JulP+udvsHwJoVG1YGAP6VLg4y9I5dyZdqmA=
+github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a h1:fZHgsYlfvtyqToslyjUt3VOPF4J7aK/3MPcK7xp3PDk=
+github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a/go.mod h1:ul22v+Nro/R083muKhosV54bj5niojjWZvU8xrevuH4=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.mongodb.org/mongo-driver v1.11.1 h1:QP0znIRTuL0jf1oBQoAoM0C6ZJfBK4kx0Uumtv1A7w8=
 go.mongodb.org/mongo-driver v1.11.1/go.mod h1:s7p5vEtfbeR1gYi6pnj3c3/urpbLv2T5Sfd6Rp2HBB8=
+go.mongodb.org/mongo-driver v1.11.7 h1:LIwYxASDLGUg/8wOhgOOZhX8tQa/9tgZPgzZoVqJvcs=
+go.mongodb.org/mongo-driver v1.11.7/go.mod h1:G9TgswdsWjX4tmDA5zfs2+6AEPpYJwqblyjsfuh8oXY=
+go.mongodb.org/mongo-driver v1.12.0 h1:aPx33jmn/rQuJXPQLZQ8NtfPQG8CaqgLThFtqRb0PiE=
+go.mongodb.org/mongo-driver v1.12.0/go.mod h1:AZkxhPnFJUoH7kZlFkVKucV20K387miPfm7oimrSmK0=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.4.0 h1:UVQgzMY87xqpKNgb+kDsll2Igd33HszWHFLmpaRMq/8=
 golang.org/x/crypto v0.4.0/go.mod h1:3quD/ATkf6oY+rnes5c3ExXTbLc8mueNue5/DoinL80=
+golang.org/x/crypto v0.9.0 h1:LF6fAI+IutBocDJ2OT0Q1g8plpYljMZ4+lty+dsqw3g=
+golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
+golang.org/x/crypto v0.10.0 h1:LKqV2xt9+kDzSTfOhx4FrkEBcMrAgHSYgzywV9zcGmM=
+golang.org/x/crypto v0.10.0/go.mod h1:o4eNf7Ede1fv+hwOwZsTHl9EsPFO6q6ZvYR8vYfY45I=
+golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
+golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
+golang.org/x/sync v0.2.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
+golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
 golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
+golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
+golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.3.0 h1:qoo4akIqOcDME5bhc/NgxUdovd6BSS2uMsVjB56q1xI=
 golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
+golang.org/x/term v0.8.0 h1:n5xxQn2i3PC0yLAbjTpNT85q/Kgzcr2gIoX9OrJUols=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/term v0.9.0 h1:GRRCnKYhdQrD8kfRAdQ6Zcw1P0OcELxGLKJvtjVMZ28=
+golang.org/x/term v0.9.0/go.mod h1:M6DEAAIenWoTxdKrOltXcmDY3rSplQUkrvaDU5FcQyo=
+golang.org/x/term v0.10.0 h1:3R7pNqamzBraeqj/Tj8qt1aQ2HpmlC+Cx/qL/7hn4/c=
+golang.org/x/term v0.10.0/go.mod h1:lpqdcUyK/oCiQxvxVrppt5ggO2KCZ5QblwqPnfZ6d5o=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.5.0 h1:OLmvp0KP+FVG99Ct/qFiL/Fhk4zp4QQnZ7b2U+5piUM=
 golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.10.0 h1:UpjohKhiEgNc0CSauXmwYftY1+LlaC75SJwh0SgCX58=
+golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
+golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

goextVersion.go

@@ -0,0 +1,5 @@
+package goext
+
+const GoextVersion = "0.0.168"
+
+const GoextVersionTimestamp = "2023-07-05T19:27:15+0200"

langext/equals.go

@@ -0,0 +1,13 @@
+package langext
+
+func EqualsPointerVal[T comparable](v1 *T, v2 *T) bool {
+	if v1 == nil && v2 == nil {
+		return true
+	}
+
+	if v1 == nil || v2 == nil {
+		return false
+	}
+
+	return *v1 == *v2
+}

mongoext/registry.go

@@ -16,6 +16,9 @@ func CreateGoExtBsonRegistry() *bsoncodec.Registry {
 	rb.RegisterTypeDecoder(reflect.TypeOf(rfctime.RFC3339NanoTime{}), rfctime.RFC3339NanoTime{})
 	rb.RegisterTypeDecoder(reflect.TypeOf(&rfctime.RFC3339NanoTime{}), rfctime.RFC3339NanoTime{})
 
+	rb.RegisterTypeDecoder(reflect.TypeOf(rfctime.Date{}), rfctime.Date{})
+	rb.RegisterTypeDecoder(reflect.TypeOf(&rfctime.Date{}), rfctime.Date{})
+
 	bsoncodec.DefaultValueEncoders{}.RegisterDefaultEncoders(rb)
 	bsoncodec.DefaultValueDecoders{}.RegisterDefaultDecoders(rb)
 

reflectext/casting.go

@@ -1,4 +1,4 @@
-package langext
+package reflectext
 
 import (
 	"reflect"

reflectext/primStrSer.go

@@ -0,0 +1,136 @@
+package reflectext
+
+import (
+	"errors"
+	"fmt"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var primitiveSerializer = map[reflect.Type]genSerializer{
+
+	reflect.TypeOf(""): newGenSerializer(serStringToString, serStringToString),
+
+	reflect.TypeOf(int(0)):   newGenSerializer(serIntNumToString[int], serStringToSIntNum[int]),
+	reflect.TypeOf(int32(0)): newGenSerializer(serIntNumToString[int32], serStringToSIntNum[int32]),
+	reflect.TypeOf(int64(0)): newGenSerializer(serIntNumToString[int64], serStringToSIntNum[int64]),
+
+	reflect.TypeOf(uint(0)):   newGenSerializer(serIntNumToString[uint], serStringToUIntNum[uint]),
+	reflect.TypeOf(uint32(0)): newGenSerializer(serIntNumToString[uint32], serStringToUIntNum[uint32]),
+	reflect.TypeOf(uint64(0)): newGenSerializer(serIntNumToString[uint64], serStringToUIntNum[uint64]),
+
+	reflect.TypeOf(float32(0)): newGenSerializer(serFloatNumToString[float32], serStringToFloatNum[float32]),
+	reflect.TypeOf(float64(0)): newGenSerializer(serFloatNumToString[float64], serStringToFloatNum[float64]),
+
+	reflect.TypeOf(true): newGenSerializer(serBoolToString, serStringToBool),
+
+	reflect.TypeOf(primitive.ObjectID{}): newGenSerializer(serObjectIDToString, serStringToObjectID),
+
+	reflect.TypeOf(time.Time{}): newGenSerializer(serTimeToString, serStringToTime),
+}
+
+type genSerializer struct {
+	ToString   func(v any) (string, error)
+	FromString func(v string) (any, error)
+}
+
+func newGenSerializer[TData any](tostr func(v TData) (string, error), fromstr func(v string) (TData, error)) genSerializer {
+	return genSerializer{
+		ToString: func(v any) (string, error) {
+			if tdv, ok := v.(TData); ok {
+				rv, err := tostr(tdv)
+				if err != nil {
+					return "", err
+				}
+				return rv, nil
+			} else {
+				return "", errors.New(fmt.Sprintf("cannot convert type %T to TData (%T)", v, *new(TData)))
+			}
+		},
+		FromString: func(v string) (any, error) {
+			nv, err := fromstr(v)
+			if err != nil {
+				return "", err
+			}
+			return nv, nil
+		},
+	}
+}
+
+func serStringToString(v string) (string, error) {
+	return v, nil
+}
+
+func serIntNumToString[TNum langext.IntegerConstraint](v TNum) (string, error) {
+	return strconv.FormatInt(int64(v), 10), nil
+}
+
+func serStringToSIntNum[TNum langext.SignedConstraint](v string) (TNum, error) {
+	r, err := strconv.ParseInt(v, 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return TNum(r), nil
+}
+
+func serStringToUIntNum[TNum langext.UnsignedConstraint](v string) (TNum, error) {
+	r, err := strconv.ParseUint(v, 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return TNum(r), nil
+}
+
+func serFloatNumToString[TNum langext.FloatConstraint](v TNum) (string, error) {
+	return strconv.FormatFloat(float64(v), 'f', -1, 64), nil
+}
+
+func serStringToFloatNum[TNum langext.FloatConstraint](v string) (TNum, error) {
+	r, err := strconv.ParseFloat(v, 64)
+	if err != nil {
+		return 0, err
+	}
+	return TNum(r), nil
+}
+
+func serBoolToString(v bool) (string, error) {
+	return langext.Conditional(v, "true", "false"), nil
+}
+
+func serStringToBool(v string) (bool, error) {
+	if strings.ToLower(v) == "true" {
+		return true, nil
+	}
+	if strings.ToLower(v) == "false" {
+		return true, nil
+	}
+	return false, errors.New(fmt.Sprintf("invalid boolean value '%s'", v))
+}
+
+func serObjectIDToString(v primitive.ObjectID) (string, error) {
+	return v.Hex(), nil
+}
+
+func serStringToObjectID(v string) (primitive.ObjectID, error) {
+	if rv, err := primitive.ObjectIDFromHex(v); err == nil {
+		return rv, nil
+	} else {
+		return primitive.ObjectID{}, err
+	}
+}
+
+func serTimeToString(v time.Time) (string, error) {
+	return v.Format(time.RFC3339Nano), nil
+}
+
+func serStringToTime(v string) (time.Time, error) {
+	if rv, err := time.Parse(time.RFC3339Nano, v); err == nil {
+		return rv, nil
+	} else {
+		return time.Time{}, err
+	}
+}

reflectext/primitiveStringSerializer.go

@@ -0,0 +1,92 @@
+package reflectext
+
+import (
+	"errors"
+	"fmt"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"reflect"
+)
+
+// PrimitiveStringSerializer is used to serialize primitive types (and a few more) from and to string
+// This is not really intended to be user facing, and more as a simple building block for other mechanisms
+// supports:
+//   - golang primitives (ints, uints, floats, bool, string)
+//   - type aliases
+//   - time.Time
+//   - primitive.ObjectID
+type PrimitiveStringSerializer struct{}
+
+func (pss PrimitiveStringSerializer) ValueToString(v any) (string, error) {
+
+	inType := reflect.TypeOf(v)
+
+	if inType.Kind() == reflect.Ptr && langext.IsNil(v) {
+		return "", nil
+	}
+
+	if inType.Kind() == reflect.Ptr {
+		rval1 := reflect.ValueOf(v)
+		rval2 := rval1.Elem()
+		rval3 := rval2.Interface()
+		return pss.ValueToString(rval3)
+	}
+
+	if conv, ok := primitiveSerializer[inType]; ok {
+		return conv.ToString(v)
+	}
+
+	for convType, conv := range primitiveSerializer {
+		if castV, ok := TryCastType(v, convType); ok {
+			return conv.ToString(castV)
+		}
+	}
+
+	return "", errors.New(fmt.Sprintf("failed to find a matching generic <toString> conversion fo type %T", v))
+}
+
+func (pss PrimitiveStringSerializer) ValueFromString(str string, outType reflect.Type) (any, error) {
+
+	if outType.Kind() == reflect.Ptr && str == "" {
+		return reflect.Zero(outType).Interface(), nil // = nil.(outType), nil
+	}
+
+	if str == "" {
+		return reflect.Zero(outType).Interface(), nil // = <default>(outType), nil
+	}
+
+	if outType.Kind() == reflect.Ptr {
+
+		innerValue, err := pss.ValueFromString(str, outType.Elem())
+		if err != nil {
+			return nil, err
+		}
+
+		// this weird piece of shit converts innerValue to &innerValue  (while keeping types)
+
+		rval1 := reflect.ValueOf(innerValue)
+		rval2 := rval1.Convert(outType.Elem())
+		rval3 := reflect.New(outType.Elem())
+		rval3.Elem().Set(rval2)
+		rval4 := rval3.Interface()
+
+		return rval4, nil
+	}
+
+	if conv, ok := primitiveSerializer[outType]; ok {
+		return conv.FromString(str)
+	}
+
+	emptyResultVal := reflect.Zero(outType).Interface()
+
+	for convType, conv := range primitiveSerializer {
+		if _, ok := TryCastType(emptyResultVal, convType); ok {
+			if convVal, err := conv.FromString(str); err == nil {
+				if resVal, ok := TryCastType(convVal, outType); ok {
+					return resVal, nil
+				}
+			}
+		}
+	}
+
+	return "", errors.New(fmt.Sprintf("failed to find a matching generic <toString> conversion fo type %s", outType.String()))
+}

rfctime/date.go

@@ -0,0 +1,240 @@
+package rfctime
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/bson/bsoncodec"
+	"go.mongodb.org/mongo-driver/bson/bsonrw"
+	"go.mongodb.org/mongo-driver/bson/bsontype"
+	"reflect"
+	"time"
+)
+
+type Date struct {
+	Year  int
+	Month int
+	Day   int
+}
+
+func (t Date) Time(loc *time.Location) time.Time {
+	return time.Date(t.Year, time.Month(t.Month), t.Day, 0, 0, 0, 0, loc)
+}
+
+func (t Date) TimeUTC() time.Time {
+	return time.Date(t.Year, time.Month(t.Month), t.Day, 0, 0, 0, 0, time.UTC)
+}
+
+func (t Date) TimeLocal() time.Time {
+	return time.Date(t.Year, time.Month(t.Month), t.Day, 0, 0, 0, 0, time.Local)
+}
+
+func (t Date) MarshalBinary() ([]byte, error) {
+	return t.TimeUTC().MarshalBinary()
+}
+
+func (t *Date) UnmarshalBinary(data []byte) error {
+	nt := time.Time{}
+	if err := nt.UnmarshalBinary(data); err != nil {
+		return err
+	}
+	t.Year = nt.Year()
+	t.Month = int(nt.Month())
+	t.Day = nt.Day()
+	return nil
+}
+
+func (t Date) GobEncode() ([]byte, error) {
+	return t.TimeUTC().GobEncode()
+}
+
+func (t *Date) GobDecode(data []byte) error {
+	nt := time.Time{}
+	if err := nt.GobDecode(data); err != nil {
+		return err
+	}
+	t.Year = nt.Year()
+	t.Month = int(nt.Month())
+	t.Day = nt.Day()
+	return nil
+}
+
+func (t *Date) UnmarshalJSON(data []byte) error {
+	str := ""
+	if err := json.Unmarshal(data, &str); err != nil {
+		return err
+	}
+	t0, err := time.Parse(t.FormatStr(), str)
+	if err != nil {
+		return err
+	}
+	t.Year = t0.Year()
+	t.Month = int(t0.Month())
+	t.Day = t0.Day()
+	return nil
+}
+
+func (t Date) MarshalJSON() ([]byte, error) {
+	str := t.TimeUTC().Format(t.FormatStr())
+	return json.Marshal(str)
+}
+
+func (t Date) MarshalText() ([]byte, error) {
+	b := make([]byte, 0, len(t.FormatStr()))
+	return t.TimeUTC().AppendFormat(b, t.FormatStr()), nil
+}
+
+func (t *Date) UnmarshalText(data []byte) error {
+	var err error
+	v, err := time.Parse(t.FormatStr(), string(data))
+	if err != nil {
+		return err
+	}
+	t.Year = v.Year()
+	t.Month = int(v.Month())
+	t.Day = v.Day()
+	return nil
+}
+
+func (t *Date) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
+	if bt == bsontype.Null {
+		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
+		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
+		// https://stackoverflow.com/questions/75167597
+		// https://jira.mongodb.org/browse/GODRIVER-2252
+		*t = Date{}
+		return nil
+	}
+	if bt != bsontype.String {
+		return errors.New(fmt.Sprintf("cannot unmarshal %v into Date", bt))
+	}
+
+	var tt string
+	err := bson.RawValue{Type: bt, Value: data}.Unmarshal(&tt)
+	if err != nil {
+		return err
+	}
+
+	v, err := time.Parse(t.FormatStr(), tt)
+	if err != nil {
+		return err
+	}
+	t.Year = v.Year()
+	t.Month = int(v.Month())
+	t.Day = v.Day()
+
+	return nil
+}
+
+func (t Date) MarshalBSONValue() (bsontype.Type, []byte, error) {
+	return bson.MarshalValue(t.TimeUTC().Format(t.FormatStr()))
+}
+
+func (t Date) DecodeValue(dc bsoncodec.DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
+	if val.Kind() == reflect.Ptr && val.IsNil() {
+		if !val.CanSet() {
+			return errors.New("ValueUnmarshalerDecodeValue")
+		}
+		val.Set(reflect.New(val.Type().Elem()))
+	}
+
+	tp, src, err := bsonrw.Copier{}.CopyValueToBytes(vr)
+	if err != nil {
+		return err
+	}
+
+	if val.Kind() == reflect.Ptr && len(src) == 0 {
+		val.Set(reflect.Zero(val.Type()))
+		return nil
+	}
+
+	err = t.UnmarshalBSONValue(tp, src)
+	if err != nil {
+		return err
+	}
+
+	if val.Kind() == reflect.Ptr {
+		val.Set(reflect.ValueOf(&t))
+	} else {
+		val.Set(reflect.ValueOf(t))
+	}
+
+	return nil
+}
+
+func (t Date) Serialize() string {
+	return t.TimeUTC().Format(t.FormatStr())
+}
+
+func (t Date) FormatStr() string {
+	return "2006-01-02"
+}
+
+func (t Date) Date() (year int, month time.Month, day int) {
+	return t.TimeUTC().Date()
+}
+
+func (t Date) Weekday() time.Weekday {
+	return t.TimeUTC().Weekday()
+}
+
+func (t Date) ISOWeek() (year, week int) {
+	return t.TimeUTC().ISOWeek()
+}
+
+func (t Date) YearDay() int {
+	return t.TimeUTC().YearDay()
+}
+
+func (t Date) AddDate(years int, months int, days int) Date {
+	return NewDate(t.TimeUTC().AddDate(years, months, days))
+}
+
+func (t Date) Unix() int64 {
+	return t.TimeUTC().Unix()
+}
+
+func (t Date) UnixMilli() int64 {
+	return t.TimeUTC().UnixMilli()
+}
+
+func (t Date) UnixMicro() int64 {
+	return t.TimeUTC().UnixMicro()
+}
+
+func (t Date) UnixNano() int64 {
+	return t.TimeUTC().UnixNano()
+}
+
+func (t Date) Format(layout string) string {
+	return t.TimeUTC().Format(layout)
+}
+
+func (t Date) GoString() string {
+	return t.TimeUTC().GoString()
+}
+
+func (t Date) String() string {
+	return t.TimeUTC().String()
+}
+
+func NewDate(t time.Time) Date {
+	return Date{
+		Year:  t.Year(),
+		Month: int(t.Month()),
+		Day:   t.Day(),
+	}
+}
+
+func NowDate(loc *time.Location) Date {
+	return NewDate(time.Now().In(loc))
+}
+
+func NowDateLoc() Date {
+	return NewDate(time.Now().In(time.UTC))
+}
+
+func NowDateUTC() Date {
+	return NewDate(time.Now().In(time.Local))
+}

wmo/collection.go

@@ -2,17 +2,35 @@ package wmo
 
 import (
 	"context"
+	"go.mongodb.org/mongo-driver/bson/bsontype"
 	"go.mongodb.org/mongo-driver/mongo"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"reflect"
 )
 
-type EntityID = any
+type EntityID interface {
+	MarshalBSONValue() (bsontype.Type, []byte, error)
+	String() string
+}
 
-type fullTypeRef[TData any] struct {
+type Decodable interface {
+	Decode(v any) error
+}
+
+type Cursorable interface {
+	Decode(v any) error
+	Err() error
+	Close(ctx context.Context) error
+	All(ctx context.Context, results any) error
+	RemainingBatchLength() int
+	Next(ctx context.Context) bool
+}
+
+type fullTypeRef struct {
 	IsPointer      bool
 	Kind           reflect.Kind
+	RealType       reflect.Type
 	Type           reflect.Type
 	UnderlyingType reflect.Type
 	Name           string
@@ -20,8 +38,11 @@ type fullTypeRef[TData any] struct {
 }
 
 type Coll[TData any] struct {
-	coll        *mongo.Collection
+	coll                *mongo.Collection                                        // internal mongo collection, access via Collection()
-	dataTypeMap map[string]fullTypeRef[TData]
+	dataTypeMap         map[string]fullTypeRef                                   // list of TData fields (only if TData is not an interface)
+	implDataTypeMap     map[reflect.Type]map[string]fullTypeRef                  // dynamic list of fields of TData implementations (only if TData is an interface)
+	customDecoder       *func(ctx context.Context, dec Decodable) (TData, error) // custom decoding function (useful if TData is an interface)
+	isInterfaceDataType bool                                                     // true if TData is an interface (not a struct)
 }
 
 func (c *Coll[TData]) Collection() *mongo.Collection {
@@ -32,6 +53,14 @@ func (c *Coll[TData]) Name() string {
 	return c.coll.Name()
 }
 
+func (c *Coll[TData]) WithDecodeFunc(cdf func(ctx context.Context, dec Decodable) (TData, error), example TData) *Coll[TData] {
+
+	c.EnsureInitializedReflection(example)
+
+	c.customDecoder = langext.Ptr(cdf)
+	return c
+}
+
 func (c *Coll[TData]) Indexes() mongo.IndexView {
 	return c.coll.Indexes()
 }

wmo/decoding.go

@@ -0,0 +1,54 @@
+package wmo
+
+import (
+	"context"
+)
+
+func (c *Coll[TData]) decodeSingle(ctx context.Context, dec Decodable) (TData, error) {
+	if c.customDecoder != nil {
+
+		return (*c.customDecoder)(ctx, dec)
+
+	} else {
+
+		var res TData
+
+		err := dec.Decode(&res)
+		if err != nil {
+			return *new(TData), err
+		}
+
+		return res, nil
+
+	}
+}
+
+func (c *Coll[TData]) decodeAll(ctx context.Context, cursor Cursorable) ([]TData, error) {
+	if c.customDecoder != nil {
+
+		res := make([]TData, 0, cursor.RemainingBatchLength())
+
+		for cursor.Next(ctx) {
+			entry, err := (*c.customDecoder)(ctx, cursor)
+			if err != nil {
+				return nil, err
+			}
+			res = append(res, entry)
+		}
+
+		return res, nil
+
+	} else {
+
+		res := make([]TData, 0, cursor.RemainingBatchLength())
+
+		err := cursor.All(ctx, &res)
+		if err != nil {
+			return nil, err
+		}
+
+		return res, nil
+
+	}
+
+}

wmo/pagination.go

@@ -1,6 +1,7 @@
 package wmo
 
 import (
+	"errors"
 	"go.mongodb.org/mongo-driver/bson"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
 )
@@ -57,8 +58,25 @@ func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldP
 
 	pipeline := make([]bson.D, 0, 3)
 
+	if token.Mode == ct.CTMStart {
+
+		// no gt/lt condition
+
+	} else if token.Mode == ct.CTMNormal {
+
 		pipeline = append(pipeline, bson.D{{Key: "$match", Value: bson.M{"$or": cond}}})
 
+	} else if token.Mode == ct.CTMEnd {
+
+		// false
+		pipeline = append(pipeline, bson.D{{Key: "$match", Value: bson.M{"$expr": bson.M{"$eq": bson.A{"1", "0"}}}}})
+
+	} else {
+
+		return nil, errors.New("unknown ct mode: " + string(token.Mode))
+
+	}
+
 	pipeline = append(pipeline, bson.D{{Key: "$sort", Value: sort}})
 
 	if pageSize != nil {

wmo/queryAggregate.go

@@ -12,11 +12,27 @@ func (c *Coll[TData]) Aggregate(ctx context.Context, pipeline mongo.Pipeline, op
 		return nil, err
 	}
 
-	res := make([]TData, 0, cursor.RemainingBatchLength())
+	res, err := c.decodeAll(ctx, cursor)
-	err = cursor.All(ctx, &res)
 	if err != nil {
 		return nil, err
 	}
 
 	return res, nil
 }
+
+func (c *Coll[TData]) AggregateOneOpt(ctx context.Context, pipeline mongo.Pipeline, opts ...*options.AggregateOptions) (*TData, error) {
+	cursor, err := c.coll.Aggregate(ctx, pipeline, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	if cursor.Next(ctx) {
+		v, err := c.decodeSingle(ctx, cursor)
+		if err != nil {
+			return nil, err
+		}
+		return &v, nil
+	}
+
+	return nil, nil
+}

wmo/queryDelete.go

@@ -6,7 +6,7 @@ import (
 	"go.mongodb.org/mongo-driver/mongo"
 )
 
-func (c *Coll[TData]) DeleteOne(ctx context.Context, id EntityID) error {
+func (c *Coll[TData]) DeleteOneByID(ctx context.Context, id EntityID) error {
 	_, err := c.coll.DeleteOne(ctx, bson.M{"_id": id})
 	if err != nil {
 		return err
@@ -15,6 +15,15 @@ func (c *Coll[TData]) DeleteOne(ctx context.Context, id EntityID) error {
 	return nil
 }
 
+func (c *Coll[TData]) DeleteOne(ctx context.Context, filterQuery bson.M) error {
+	_, err := c.coll.DeleteOne(ctx, filterQuery)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func (c *Coll[TData]) DeleteMany(ctx context.Context, filterQuery bson.M) (*mongo.DeleteResult, error) {
 	res, err := c.coll.DeleteMany(ctx, filterQuery)
 	if err != nil {

wmo/queryFind.go

@@ -8,20 +8,15 @@ import (
 )
 
 func (c *Coll[TData]) FindOne(ctx context.Context, filter bson.M) (TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOne(ctx, filter)
 
-	err := c.coll.FindOne(ctx, filter).Decode(&res)
+	return c.decodeSingle(ctx, mongoRes)
-	if err != nil {
-		return *new(TData), err
-	}
-
-	return res, nil
 }
 
 func (c *Coll[TData]) FindOneOpt(ctx context.Context, filter bson.M) (*TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOne(ctx, filter)
 
-	err := c.coll.FindOne(ctx, filter).Decode(&res)
+	res, err := c.decodeSingle(ctx, mongoRes)
 	if err == mongo.ErrNoDocuments {
 		return nil, nil
 	}
@@ -33,20 +28,15 @@ func (c *Coll[TData]) FindOneOpt(ctx context.Context, filter bson.M) (*TData, er
 }
 
 func (c *Coll[TData]) FindOneByID(ctx context.Context, id EntityID) (TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": id})
 
-	err := c.coll.FindOne(ctx, bson.M{"_id": id}).Decode(&res)
+	return c.decodeSingle(ctx, mongoRes)
-	if err != nil {
-		return *new(TData), err
-	}
-
-	return res, nil
 }
 
 func (c *Coll[TData]) FindOneOptByID(ctx context.Context, id EntityID) (*TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": id})
 
-	err := c.coll.FindOne(ctx, bson.M{"_id": id}).Decode(&res)
+	res, err := c.decodeSingle(ctx, mongoRes)
 	if err == mongo.ErrNoDocuments {
 		return nil, nil
 	}
@@ -63,8 +53,7 @@ func (c *Coll[TData]) Find(ctx context.Context, filter bson.M, opts ...*options.
 		return nil, err
 	}
 
-	res := make([]TData, 0, cursor.RemainingBatchLength())
+	res, err := c.decodeAll(ctx, cursor)
-	err = cursor.All(ctx, &res)
 	if err != nil {
 		return nil, err
 	}

wmo/queryInsert.go

@@ -11,12 +11,7 @@ func (c *Coll[TData]) InsertOne(ctx context.Context, valueIn TData) (TData, erro
 		return *new(TData), err
 	}
 
-	var res TData
+	mongoRes := c.coll.FindOne(ctx, bson.M{"_id": insRes.InsertedID})
 
-	err = c.coll.FindOne(ctx, bson.M{"_id": insRes.InsertedID}).Decode(&res)
+	return c.decodeSingle(ctx, mongoRes)
-	if err != nil {
-		return *new(TData), err
-	}
-
-	return res, nil
 }

wmo/queryList.go

@@ -3,6 +3,7 @@ package wmo
 import (
 	"context"
 	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
 	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
 )
 
@@ -11,9 +12,16 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 		return make([]TData, 0), ct.End(), nil
 	}
 
-	pipeline := filter.FilterQuery()
+	pipeline := mongo.Pipeline{}
+	pf1 := "_id"
+	pd1 := ct.SortASC
+	pf2 := "_id"
+	pd2 := ct.SortASC
 
-	pf1, pd1, pf2, pd2 := filter.Pagination()
+	if filter != nil {
+		pipeline = filter.FilterQuery()
+		pf1, pd1, pf2, pd2 = filter.Pagination()
+	}
 
 	sortPrimary := pf1
 	sortDirPrimary := pd1
@@ -37,27 +45,45 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 		return nil, ct.CursorToken{}, err
 	}
 
-	entities := make([]TData, 0, cursor.RemainingBatchLength()+1)
+	// fast branch
+	if pageSize == nil {
+		entries, err := c.decodeAll(ctx, cursor)
+		if err != nil {
+			return nil, ct.CursorToken{}, err
+		}
+		return entries, ct.End(), nil
+	}
+
+	entities := make([]TData, 0, cursor.RemainingBatchLength())
 	for (pageSize == nil || len(entities) != *pageSize) && cursor.Next(ctx) {
 		var entry TData
-		err = cursor.Decode(&entry)
+		entry, err = c.decodeSingle(ctx, cursor)
 		if err != nil {
 			return nil, ct.CursorToken{}, err
 		}
 		entities = append(entities, entry)
 	}
 
-	if pageSize == nil || len(entities) <= *pageSize || !cursor.TryNext(ctx) {
+	if pageSize == nil || len(entities) < *pageSize || !cursor.TryNext(ctx) {
 		return entities, ct.End(), nil
 	}
 
 	last := entities[len(entities)-1]
 
-	nextToken, _ := c.createToken(sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, last, pageSize)
+	c.EnsureInitializedReflection(last)
+
+	nextToken, err := c.createToken(sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, last, pageSize)
+	if err != nil {
+		return nil, ct.CursorToken{}, err
+	}
 
 	return entities, nextToken, nil
 }
 
+type countRes struct {
+	Count int64 `bson:"c"`
+}
+
 func (c *Coll[TData]) Count(ctx context.Context, filter ct.Filter) (int64, error) {
 	pipeline := filter.FilterQuery()
 
@@ -68,12 +94,8 @@ func (c *Coll[TData]) Count(ctx context.Context, filter ct.Filter) (int64, error
 		return 0, err
 	}
 
-	type res struct {
-		Count int64 `bson:"c"`
-	}
-
 	if cursor.Next(ctx) {
-		v := res{}
+		v := countRes{}
 		err = cursor.Decode(&v)
 		if err != nil {
 			return 0, err

wmo/queryUpdate.go

@@ -8,14 +8,9 @@ import (
 )
 
 func (c *Coll[TData]) FindOneAndUpdate(ctx context.Context, filterQuery bson.M, updateQuery bson.M) (TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOneAndUpdate(ctx, filterQuery, updateQuery, options.FindOneAndUpdate().SetReturnDocument(options.After))
 
-	err := c.coll.FindOneAndUpdate(ctx, filterQuery, updateQuery, options.FindOneAndUpdate().SetReturnDocument(options.After)).Decode(&res)
+	return c.decodeSingle(ctx, mongoRes)
-	if err != nil {
-		return *new(TData), err
-	}
-
-	return res, nil
 }
 
 func (c *Coll[TData]) UpdateOne(ctx context.Context, filterQuery bson.M, updateQuery bson.M) error {
@@ -45,8 +40,8 @@ func (c *Coll[TData]) UpdateMany(ctx context.Context, filterQuery bson.M, update
 	return res, nil
 }
 
-func (c *Coll[TData]) ReplaceOne(ctx context.Context, id EntityID, value TData) error {
+func (c *Coll[TData]) ReplaceOne(ctx context.Context, filterQuery bson.M, value TData) error {
-	_, err := c.coll.UpdateOne(ctx, bson.M{"_id": id}, value)
+	_, err := c.coll.UpdateOne(ctx, filterQuery, bson.M{"$set": value})
 	if err != nil {
 		return err
 	}
@@ -54,13 +49,8 @@ func (c *Coll[TData]) ReplaceOne(ctx context.Context, id EntityID, value TData)
 	return nil
 }
 
-func (c *Coll[TData]) FindOneAndReplace(ctx context.Context, id EntityID, value TData) (TData, error) {
+func (c *Coll[TData]) FindOneAndReplace(ctx context.Context, filterQuery bson.M, value TData) (TData, error) {
-	var res TData
+	mongoRes := c.coll.FindOneAndUpdate(ctx, filterQuery, bson.M{"$set": value}, options.FindOneAndUpdate().SetReturnDocument(options.After))
 
-	err := c.coll.FindOneAndUpdate(ctx, bson.M{"_id": id}, value, options.FindOneAndUpdate().SetReturnDocument(options.After)).Decode(&res)
+	return c.decodeSingle(ctx, mongoRes)
-	if err != nil {
-		return *new(TData), err
-	}
-
-	return res, nil
 }

wmo/reflection.go

@@ -2,26 +2,61 @@ package wmo
 
 import (
 	"errors"
-	"fmt"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/reflectext"
 	"reflect"
-	"strconv"
+	"strings"
-	"time"
 )
 
+func (c *Coll[TData]) EnsureInitializedReflection(v TData) {
+
+	if !c.isInterfaceDataType {
+		return // only dynamically load dataTypeMap on interface TData
+	}
+
+	rval := reflect.ValueOf(v)
+	for rval.Type().Kind() == reflect.Pointer {
+		rval = rval.Elem()
+	}
+
+	if _, ok := c.implDataTypeMap[rval.Type()]; ok {
+		return // already loaded
+	}
+
+	m := make(map[string]fullTypeRef)
+
+	c.initFields("", rval, m, make([]int, 0))
+
+	c.implDataTypeMap[rval.Type()] = m
+}
+
 func (c *Coll[TData]) init() {
 
-	c.dataTypeMap = make(map[string]fullTypeRef[TData])
-
 	example := *new(TData)
 
-	v := reflect.ValueOf(example)
+	datatype := reflect.TypeOf(&example).Elem()
 
-	c.initFields("", v, make([]int, 0))
+	if datatype.Kind() == reflect.Interface {
+
+		c.isInterfaceDataType = true
+
+		c.dataTypeMap = make(map[string]fullTypeRef)
+		c.implDataTypeMap = make(map[reflect.Type]map[string]fullTypeRef)
+	} else {
+
+		c.isInterfaceDataType = false
+
+		c.dataTypeMap = make(map[string]fullTypeRef)
+		c.implDataTypeMap = make(map[reflect.Type]map[string]fullTypeRef)
+
+		v := reflect.ValueOf(example)
+		c.initFields("", v, c.dataTypeMap, make([]int, 0))
 
 	}
 
-func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, idxarr []int) {
+}
+
+func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, m map[string]fullTypeRef, idxarr []int) {
 
 	rtyp := rval.Type()
 
@@ -34,34 +69,55 @@ func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, idxarr []int
 			continue
 		}
 
+		bsontags := make([]string, 0)
 		bsonkey, found := rsfield.Tag.Lookup("bson")
-		if !found || bsonkey == "-" {
+		if !found {
 			continue
 		}
+		if strings.Contains(bsonkey, ",") {
+			bsontags = strings.Split(bsonkey[strings.Index(bsonkey, ",")+1:], ",")
+			bsonkey = bsonkey[:strings.Index(bsonkey, ",")]
+		}
+		if bsonkey == "-" {
+			continue
+		}
+
+		if bsonkey == "" {
+			bsonkey = rsfield.Name
+		}
 
 		fullKey := prefix + bsonkey
 
 		newIdxArr := langext.ArrCopy(idxarr)
 		newIdxArr = append(newIdxArr, i)
 
+		if langext.InArray("inline", bsontags) && rvfield.Kind() == reflect.Struct {
+
+			// pass-through field
+			c.initFields(prefix, rvfield, m, newIdxArr)
+
+		} else {
+
 			if rvfield.Type().Kind() == reflect.Pointer {
 
-			c.dataTypeMap[fullKey] = fullTypeRef[TData]{
+				m[fullKey] = fullTypeRef{
 					IsPointer:      true,
+					RealType:       rvfield.Type(),
 					Kind:           rvfield.Type().Elem().Kind(),
 					Type:           rvfield.Type().Elem(),
-				UnderlyingType: langext.Underlying(rvfield.Type().Elem()),
+					UnderlyingType: reflectext.Underlying(rvfield.Type().Elem()),
 					Name:           rsfield.Name,
 					Index:          newIdxArr,
 				}
 
 			} else {
 
-			c.dataTypeMap[fullKey] = fullTypeRef[TData]{
+				m[fullKey] = fullTypeRef{
 					IsPointer:      false,
+					RealType:       rvfield.Type(),
 					Kind:           rvfield.Type().Kind(),
 					Type:           rvfield.Type(),
-				UnderlyingType: langext.Underlying(rvfield.Type()),
+					UnderlyingType: reflectext.Underlying(rvfield.Type()),
 					Name:           rsfield.Name,
 					Index:          newIdxArr,
 				}
@@ -69,7 +125,9 @@ func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, idxarr []int
 			}
 
 			if rvfield.Kind() == reflect.Struct {
-			c.initFields(fullKey+".", rvfield, newIdxArr)
+				c.initFields(fullKey+".", rvfield, m, newIdxArr)
+			}
+
 		}
 
 	}
@@ -77,218 +135,81 @@ func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, idxarr []int
 }
 
 func (c *Coll[TData]) getTokenValueAsMongoType(value string, fieldName string) (any, error) {
-	fref := c.dataTypeMap[fieldName]
 
-	if fref.IsPointer && value == "" {
+	fref, err := c.getFieldType(fieldName)
-		pointertype := reflect.New(fref.Type).Type()
-		nilvalue := reflect.Zero(pointertype)
-		outvalue := nilvalue.Interface()
-		return outvalue, nil
-	}
-
-	pointerize := func(v any) any {
-		if !fref.IsPointer {
-			return v
-		}
-
-		rval1 := reflect.ValueOf(v)
-		rval2 := rval1.Convert(fref.Type)
-		rval3 := reflect.New(fref.Type)
-		rval3.Elem().Set(rval2)
-		return rval3.Interface()
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf("") {
-
-		rt, ok := langext.TryCastType(value, fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from string to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(time.Time{}) {
-
-		t, err := time.Parse(time.RFC3339Nano, value)
 	if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as time.Time ('%s')", fieldName, value))
+		return nil, err
 	}
 
-		rt, ok := langext.TryCastType(t, fref.Type)
+	pss := reflectext.PrimitiveStringSerializer{}
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from time.Time to %s", fieldName, fref.Type.String()))
-		}
 
-		return pointerize(rt), nil
+	return pss.ValueFromString(value, fref.RealType)
-	}
 
-	if fref.UnderlyingType == reflect.TypeOf(int(0)) {
-
-		t, err := strconv.ParseInt(value, 10, 64)
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int64 ('%s')", fieldName, value))
-		}
-
-		rt, ok := langext.TryCastType(int(t), fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(int32(0)) {
-
-		t, err := strconv.ParseInt(value, 10, 64)
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int32 ('%s')", fieldName, value))
-		}
-
-		rt, ok := langext.TryCastType(int32(t), fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int32 to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(int64(0)) {
-
-		t, err := strconv.ParseInt(value, 10, 64)
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int64 ('%s')", fieldName, value))
-		}
-
-		rt, ok := langext.TryCastType(int64(t), fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int64 to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(float32(0)) {
-
-		t, err := strconv.ParseFloat(value, 64)
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as float32 ('%s')", fieldName, value))
-		}
-
-		rt, ok := langext.TryCastType(float32(t), fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from float32 to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(float64(0)) {
-
-		t, err := strconv.ParseFloat(value, 64)
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as float64 ('%s')", fieldName, value))
-		}
-
-		rt, ok := langext.TryCastType(float64(t), fref.Type)
-		if !ok {
-			return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from float64 to %s", fieldName, fref.Type.String()))
-		}
-
-		return pointerize(rt), nil
-	}
-
-	return nil, errors.New(fmt.Sprintf("failed to parse field '%s' of type %s (%s)", fieldName, fref.Type.String(), fref.UnderlyingType.String()))
 }
 
 func (c *Coll[TData]) getFieldValueAsTokenString(entity TData, fieldName string) (string, error) {
-	fref := c.dataTypeMap[fieldName]
 
-	realValue := c.getFieldValue(entity, fieldName)
+	realValue, err := c.getFieldValue(entity, fieldName)
-
+	if err != nil {
-	if langext.IsNil(realValue) {
+		return "", err
-		return "", nil
 	}
 
-	reflValue := reflect.ValueOf(realValue)
+	pss := reflectext.PrimitiveStringSerializer{}
-	if reflValue.Kind() == reflect.Pointer {
+
-		reflValue = reflValue.Elem()
+	return pss.ValueToString(realValue)
-		realValue = reflValue.Interface()
+
 }
 
-	if fref.UnderlyingType == reflect.TypeOf("") {
+func (c *Coll[TData]) getFieldType(fieldName string) (fullTypeRef, error) {
+	if c.isInterfaceDataType {
 
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(""))
+		for _, m := range c.implDataTypeMap {
-		if !ok {
+			if r, ok := m[fieldName]; ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to string", fieldName, fref.Type.String()))
+				return r, nil
+			}
 		}
 
-		return rt.(string), nil
+		return fullTypeRef{}, errors.New("unknown field: '" + fieldName + "' (in any impl)")
+
+	} else {
+
+		if r, ok := c.dataTypeMap[fieldName]; ok {
+			return r, nil
+		} else {
+			return fullTypeRef{}, errors.New("unknown field: '" + fieldName + "'")
 		}
 
-	if fref.UnderlyingType == reflect.TypeOf(time.Time{}) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(time.Time{}))
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to time.Time", fieldName, fref.Type.String()))
 	}
 
-		return rt.(time.Time).Format(time.RFC3339Nano), nil
 }
 
-	if fref.UnderlyingType == reflect.TypeOf(int(0)) {
+func (c *Coll[TData]) getFieldValue(data TData, fieldName string) (any, error) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int(0)))
+	if c.isInterfaceDataType {
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int", fieldName, fref.Type.String()))
-		}
 
-		return strconv.Itoa(rt.(int)), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(int32(0)) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int32(0)))
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int32", fieldName, fref.Type.String()))
-		}
-
-		return strconv.FormatInt(int64(rt.(int32)), 10), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(int64(0)) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int64(0)))
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int64", fieldName, fref.Type.String()))
-		}
-
-		return strconv.FormatInt(rt.(int64), 10), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(float32(0)) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(float32(0)))
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to float32", fieldName, fref.Type.String()))
-		}
-
-		return strconv.FormatFloat(float64(rt.(float32)), 'f', -1, 32), nil
-	}
-
-	if fref.UnderlyingType == reflect.TypeOf(float64(0)) {
-		rt, ok := langext.TryCastType(realValue, reflect.TypeOf(float64(0)))
-		if !ok {
-			return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to float64", fieldName, fref.Type.String()))
-		}
-
-		return strconv.FormatFloat(rt.(float64), 'f', -1, 64), nil
-	}
-
-	return "", errors.New(fmt.Sprintf("failed to parse field '%s' of type %s (%s)", fieldName, fref.Type.String(), fref.UnderlyingType.String()))
-}
-
-func (c *Coll[TData]) getFieldType(fieldName string) fullTypeRef[TData] {
-	return c.dataTypeMap[fieldName]
-}
-
-func (c *Coll[TData]) getFieldValue(data TData, fieldName string) any {
-	fref := c.dataTypeMap[fieldName]
 		rval := reflect.ValueOf(data)
-	return rval.FieldByIndex(fref.Index).Interface()
+		for rval.Type().Kind() == reflect.Pointer {
+			rval = rval.Elem()
+		}
+
+		if m, ok := c.implDataTypeMap[rval.Type()]; ok {
+			if fref, ok := m[fieldName]; ok {
+				rval := reflect.ValueOf(data)
+				return rval.FieldByIndex(fref.Index).Interface(), nil
+			} else {
+				return nil, errors.New("unknown bson field '" + fieldName + "' in type '" + rval.Type().String() + "'")
+			}
+		} else {
+			return nil, errors.New("unknown TData type: '" + rval.Type().String() + "'")
+		}
+
+	} else {
+
+		if fref, ok := c.dataTypeMap[fieldName]; ok {
+			rval := reflect.ValueOf(data)
+			return rval.FieldByIndex(fref.Index).Interface(), nil
+		} else {
+			return nil, errors.New("unknown bson field '" + fieldName + "'")
+		}
+
+	}
 }

wmo/reflection_test.go

@@ -1,9 +1,14 @@
 package wmo
 
 import (
+	"context"
+	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/rfctime"
+	"gogs.mikescher.com/BlackForestBytes/goext/timeext"
 	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"reflect"
 	"testing"
 	"time"
 )
@@ -20,6 +25,7 @@ func TestReflectionGetFieldType(t *testing.T) {
 		} `bson:"sub"`
 		Str   string                  `bson:"str"`
 		Ptr   *int                    `bson:"ptr"`
+		MDate rfctime.RFC3339NanoTime `bson:"mdate"`
 	}
 
 	coll := W[TestData](&mongo.Collection{})
@@ -27,6 +33,7 @@ func TestReflectionGetFieldType(t *testing.T) {
 	coll.init()
 
 	t0 := time.Now()
+	t1 := rfctime.NewRFC3339Nano(t0)
 
 	d := TestData{
 		ID:    "1",
@@ -38,37 +45,54 @@ func TestReflectionGetFieldType(t *testing.T) {
 		},
 		Str:   "3",
 		Ptr:   langext.Ptr(4),
+		MDate: t1,
 	}
 
-	tst.AssertEqual(t, coll.getFieldType("_id").Kind.String(), "string")
+	gft := func(k string) fullTypeRef {
-	tst.AssertEqual(t, coll.getFieldType("_id").Type.String(), "wmo.IDType")
+		v, err := coll.getFieldType(k)
-	tst.AssertEqual(t, coll.getFieldType("_id").Name, "ID")
+		if err != nil {
-	tst.AssertEqual(t, coll.getFieldType("_id").IsPointer, false)
+			t.Errorf("%s: %v", "failed to getFieldType", err)
-	tst.AssertEqual(t, coll.getFieldValue(d, "_id").(IDType), "1")
+		}
+		return v
+	}
 
-	tst.AssertEqual(t, coll.getFieldType("cdate").Kind.String(), "struct")
+	gfv := func(k string) any {
-	tst.AssertEqual(t, coll.getFieldType("cdate").Type.String(), "time.Time")
+		v, err := coll.getFieldValue(d, k)
-	tst.AssertEqual(t, coll.getFieldType("cdate").Name, "CDate")
+		if err != nil {
-	tst.AssertEqual(t, coll.getFieldType("cdate").IsPointer, false)
+			t.Errorf("%s: %v", "failed to getFieldType", err)
-	tst.AssertEqual(t, coll.getFieldValue(d, "cdate").(time.Time), t0)
+		}
+		return v
+	}
 
-	tst.AssertEqual(t, coll.getFieldType("sub.a").Kind.String(), "string")
+	tst.AssertEqual(t, gft("_id").Kind.String(), "string")
-	tst.AssertEqual(t, coll.getFieldType("sub.a").Type.String(), "string")
+	tst.AssertEqual(t, gft("_id").Type.String(), "wmo.IDType")
-	tst.AssertEqual(t, coll.getFieldType("sub.a").Name, "A")
+	tst.AssertEqual(t, gft("_id").Name, "ID")
-	tst.AssertEqual(t, coll.getFieldType("sub.a").IsPointer, false)
+	tst.AssertEqual(t, gft("_id").IsPointer, false)
-	tst.AssertEqual(t, coll.getFieldValue(d, "sub.a").(string), "2")
+	tst.AssertEqual(t, gfv("_id").(IDType), "1")
 
-	tst.AssertEqual(t, coll.getFieldType("str").Kind.String(), "string")
+	tst.AssertEqual(t, gft("cdate").Kind.String(), "struct")
-	tst.AssertEqual(t, coll.getFieldType("str").Type.String(), "string")
+	tst.AssertEqual(t, gft("cdate").Type.String(), "time.Time")
-	tst.AssertEqual(t, coll.getFieldType("str").Name, "Str")
+	tst.AssertEqual(t, gft("cdate").Name, "CDate")
-	tst.AssertEqual(t, coll.getFieldType("str").IsPointer, false)
+	tst.AssertEqual(t, gft("cdate").IsPointer, false)
-	tst.AssertEqual(t, coll.getFieldValue(d, "str").(string), "3")
+	tst.AssertEqual(t, gfv("cdate").(time.Time), t0)
 
-	tst.AssertEqual(t, coll.getFieldType("ptr").Kind.String(), "int")
+	tst.AssertEqual(t, gft("sub.a").Kind.String(), "string")
-	tst.AssertEqual(t, coll.getFieldType("ptr").Type.String(), "int")
+	tst.AssertEqual(t, gft("sub.a").Type.String(), "string")
-	tst.AssertEqual(t, coll.getFieldType("ptr").Name, "Ptr")
+	tst.AssertEqual(t, gft("sub.a").Name, "A")
-	tst.AssertEqual(t, coll.getFieldType("ptr").IsPointer, true)
+	tst.AssertEqual(t, gft("sub.a").IsPointer, false)
-	tst.AssertEqual(t, *coll.getFieldValue(d, "ptr").(*int), 4)
+	tst.AssertEqual(t, gfv("sub.a").(string), "2")
+
+	tst.AssertEqual(t, gft("str").Kind.String(), "string")
+	tst.AssertEqual(t, gft("str").Type.String(), "string")
+	tst.AssertEqual(t, gft("str").Name, "Str")
+	tst.AssertEqual(t, gft("str").IsPointer, false)
+	tst.AssertEqual(t, gfv("str").(string), "3")
+
+	tst.AssertEqual(t, gft("ptr").Kind.String(), "int")
+	tst.AssertEqual(t, gft("ptr").Type.String(), "int")
+	tst.AssertEqual(t, gft("ptr").Name, "Ptr")
+	tst.AssertEqual(t, gft("ptr").IsPointer, true)
+	tst.AssertEqual(t, *gfv("ptr").(*int), 4)
 }
 
 func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
@@ -84,6 +108,7 @@ func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
 		Str   string                  `bson:"str"`
 		Ptr   *int                    `bson:"ptr"`
 		Num   int                     `bson:"num"`
+		MDate rfctime.RFC3339NanoTime `bson:"mdate"`
 	}
 
 	coll := W[TestData](&mongo.Collection{})
@@ -94,15 +119,23 @@ func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
 		v, err := coll.getTokenValueAsMongoType(value, fieldName)
 		if err != nil {
 			t.Errorf("%s", "failed to getTokenValueAsMongoType")
+			t.Errorf("%v+", err)
 		}
 		return v
 	}
 
+	tx, err := time.Parse(time.RFC3339Nano, "2009-11-10T23:00:00Z")
+	if err != nil {
+		t.Errorf("%v", err)
+	}
+
 	tst.AssertEqual(t, gtvasmt("hello", "str").(string), "hello")
 	tst.AssertEqual(t, gtvasmt("4", "num").(int), 4)
 	tst.AssertEqual(t, gtvasmt("asdf", "_id").(IDType), "asdf")
 	tst.AssertEqual(t, gtvasmt("", "ptr").(*int), nil)
 	tst.AssertEqual(t, *(gtvasmt("123", "ptr").(*int)), 123)
+	tst.AssertEqual(t, gtvasmt("2009-11-10T23:00:00Z", "cdate").(time.Time), tx)
+	tst.AssertEqual(t, gtvasmt("2009-11-10T23:00:00Z", "mdate").(rfctime.RFC3339NanoTime), rfctime.NewRFC3339Nano(tx))
 }
 
 func TestReflectionGetFieldValueAsTokenString(t *testing.T) {
@@ -120,17 +153,20 @@ func TestReflectionGetFieldValueAsTokenString(t *testing.T) {
 		Num   int                     `bson:"num"`
 		Ptr2  *int                    `bson:"ptr2"`
 		FFF   float64                 `bson:"fff"`
+		MDate rfctime.RFC3339NanoTime `bson:"mdate"`
 	}
 
 	coll := W[TestData](&mongo.Collection{})
 
 	coll.init()
 
-	t0 := time.Now()
+	t0 := time.Date(2000, 1, 1, 12, 0, 0, 0, timeext.TimezoneBerlin)
+	t1 := rfctime.NewRFC3339Nano(t0)
 
 	d := TestData{
 		ID:    "1",
 		CDate: t0,
+		MDate: t1,
 		Sub: struct {
 			A string `bson:"a"`
 		}{
@@ -146,7 +182,7 @@ func TestReflectionGetFieldValueAsTokenString(t *testing.T) {
 	gfvats := func(value TestData, fieldName string) string {
 		v, err := coll.getFieldValueAsTokenString(value, fieldName)
 		if err != nil {
-			t.Errorf("%s", "failed to getTokenValueAsMongoType")
+			t.Errorf("%s: %v", "failed to getTokenValueAsMongoType", err)
 		}
 		return v
 	}
@@ -157,4 +193,34 @@ func TestReflectionGetFieldValueAsTokenString(t *testing.T) {
 	tst.AssertEqual(t, gfvats(d, "ptr"), "4")
 	tst.AssertEqual(t, gfvats(d, "ptr2"), "")
 	tst.AssertEqual(t, gfvats(d, "fff"), "22.5")
+	tst.AssertEqual(t, gfvats(d, "cdate"), t0.Format(time.RFC3339Nano))
+	tst.AssertEqual(t, gfvats(d, "mdate"), t0.Format(time.RFC3339Nano))
+}
+
+func TestReflectionWithInterface(t *testing.T) {
+
+	type TestData struct {
+		ID    primitive.ObjectID `bson:"_id"`
+		CDate time.Time          `bson:"cdate"`
+	}
+
+	type TestInterface interface {
+	}
+
+	coll1 := W[TestInterface](&mongo.Collection{})
+
+	tst.AssertTrue(t, coll1.coll != nil)
+	tst.AssertEqual(t, 0, len(coll1.implDataTypeMap))
+
+	df := func(ctx context.Context, dec Decodable) (TestInterface, error) {
+		return TestData{}, nil
+	}
+
+	coll2 := W[TestInterface](&mongo.Collection{}).WithDecodeFunc(df, TestData{})
+
+	tst.AssertTrue(t, coll2.coll != nil)
+	tst.AssertEqual(t, 1, len(coll2.implDataTypeMap))
+
+	tst.AssertEqual(t, "ID", coll2.implDataTypeMap[reflect.TypeOf(TestData{})]["_id"].Name)
+	tst.AssertEqual(t, "CDate", coll2.implDataTypeMap[reflect.TypeOf(TestData{})]["cdate"].Name)
 }