move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/telegram/message/internal/mkentity/entity.go

@@ -0,0 +1,43 @@
+package main
+
+const entityTmpl = `// Code generated by mkentity, DO NOT EDIT.
+package {{ $.PackageName }}
+
+import (
+	"context"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+var (
+	_ = tg.Invoker(nil)
+	_ = context.Context(nil)
+)
+
+{{- /*gotype: go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/internal/mkrun.Config*/ -}}
+{{- range $typ := $.Data }}
+{{ $helperName := trimPrefix ( trimPrefix $typ.Name "Input" ) "MessageEntity" -}}
+// {{ $helperName }} creates Formatter of {{ $helperName }} message entity.
+//
+// See https://core.telegram.org/constructor/{{ $typ.SchemaType.Name }}.
+func {{ $helperName }}({{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }} {{ $f.Type }}{{- end }}) Formatter {
+	return func(offset, length int) tg.MessageEntityClass {
+		return &tg.{{ $typ.Name }}{
+			Offset: offset,
+			Length: length,
+			{{- range $f := $typ.Fields }}
+			{{ $f.Name }}: {{ lowerFirst $f.Name }},
+			{{- end }}
+		}
+	}
+}
+
+// {{ $helperName }} adds and formats message as {{ $helperName }} message entity.
+//
+// See https://core.telegram.org/constructor/{{ $typ.SchemaType.Name }}.
+func (b *Builder) {{ $helperName }}(s string,
+{{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }} {{ $f.Type }}{{- end }}) *Builder {
+	return b.Format(s, {{ $helperName }}({{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }},{{- end }}))
+}
+{{- end }}
+`

pkg/gotd/telegram/message/internal/mkentity/main.go

@@ -0,0 +1,103 @@
+package main
+
+import (
+	"flag"
+	"reflect"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdp"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/internal/mkrun"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// Field represents type field.
+type Field struct {
+	// Name is Go name of field.
+	Name string
+	// Type is Go type of field.
+	Type string
+}
+
+// Type represents generated type.
+type Type struct {
+	// Name is Go name of type.
+	Name string
+	// Fields is slice of type fields.
+	Fields []Field
+	// SchemaType is related schema type.
+	SchemaType tdp.Type
+}
+
+var (
+	constructors = tg.ClassConstructorsMap()
+	create       = tg.TypesConstructorMap()
+	templates    = map[string]string{
+		"entity":  entityTmpl,
+		"styling": stylingTmpl,
+	}
+)
+
+type generator struct {
+	template string
+}
+
+func (g *generator) Name() string {
+	return "mkentity"
+}
+
+func (g *generator) Flags(set *flag.FlagSet) {
+	set.StringVar(&g.template, "template", "entity", "template to use")
+}
+
+func (g *generator) Template() string {
+	return templates[g.template]
+}
+
+func (g *generator) Data() (interface{}, error) {
+	var types []Type
+	for _, typeID := range constructors[tg.MessageEntityClassName] {
+		v, ok := create[typeID]().(tdp.Object)
+		if !ok {
+			return nil, errors.Errorf("bad type %#x", typeID)
+		}
+		schemaType := v.TypeInfo()
+		// Skip messageEntityMentionName because we should use inputMessageEntityMentionName.
+		if schemaType.Name == "messageEntityMentionName" {
+			continue
+		}
+
+		tv := reflect.TypeOf(v).Elem()
+
+		var fields []Field
+		for _, field := range schemaType.Fields {
+			// These fields set by Formatter callee.
+			if field.Name == "Offset" || field.Name == "Length" {
+				continue
+			}
+
+			rf, ok := tv.FieldByName(field.Name)
+			if !ok {
+				return nil, errors.Errorf(
+					"field of %q type %q not found",
+					field.Name, schemaType.Name,
+				)
+			}
+			fields = append(fields, Field{
+				Name: field.Name,
+				Type: rf.Type.String(),
+			})
+		}
+		types = append(types, Type{
+			Name:       tv.Name(),
+			Fields:     fields,
+			SchemaType: v.TypeInfo(),
+		})
+	}
+
+	return types, nil
+}
+
+func main() {
+	mkrun.Main(&generator{})
+}

pkg/gotd/telegram/message/internal/mkentity/styling.go

@@ -0,0 +1,31 @@
+package main
+
+const stylingTmpl = `// Code generated by mkentity, DO NOT EDIT.
+package {{ $.PackageName }}
+
+import (
+	"context"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+var (
+	_ = tg.Invoker(nil)
+	_ = context.Context(nil)
+)
+
+{{- /*gotype: go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/internal/mkrun.Config*/ -}}
+{{- range $typ := $.Data }}
+{{ $helperName := trimPrefix ( trimPrefix $typ.Name "Input" ) "MessageEntity" -}}
+// {{ $helperName }} formats text as {{ $helperName }} entity.
+//
+// See https://core.telegram.org/constructor/{{ $typ.SchemaType.Name }}.
+func {{ $helperName }}(s string,
+{{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }} {{ $f.Type }}{{- end }}) StyledTextOption {
+	return styledTextOption(s, func(b *textBuilder) error {
+		b.{{ $helperName }}(s, {{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }},{{- end }})
+		return nil
+	})
+}
+{{- end }}
+`

pkg/gotd/telegram/message/internal/mkrun/generator.go

@@ -0,0 +1,15 @@
+package mkrun
+
+import "flag"
+
+// Generator represents generator script.
+type Generator interface {
+	// Name is generator name.
+	Name() string
+	// Flags sets generator flags.
+	Flags(set *flag.FlagSet)
+	// Template returns generation template.
+	Template() string
+	// Data returns associated generation data.
+	Data() (interface{}, error)
+}

pkg/gotd/telegram/message/internal/mkrun/mkrun.go

@@ -0,0 +1,115 @@
+// Package mkrun contains some helpers for generation scripts.
+package mkrun
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"go/format"
+	"io"
+	"os"
+	"strings"
+	"text/template"
+	"time"
+	"unicode"
+	"unicode/utf8"
+
+	"github.com/go-faster/errors"
+	"go.uber.org/multierr"
+)
+
+// Config is generation config.
+type Config struct {
+	PackageName string
+	Data        interface{}
+}
+
+func generate(w io.Writer, pkgName string, g Generator) error {
+	start := time.Now()
+	data, err := g.Data()
+	if err != nil {
+		return err
+	}
+	collectInfoTime := time.Since(start)
+
+	start = time.Now()
+	buf := bytes.Buffer{}
+	t, err := template.New("gen").Funcs(template.FuncMap{
+		"trimPrefix": strings.TrimPrefix,
+		"trimSuffix": strings.TrimSuffix,
+		"lowerFirst": func(s string) string {
+			r, size := utf8.DecodeRuneInString(s)
+			if r == utf8.RuneError || unicode.IsLower(r) {
+				return s
+			}
+			return string(unicode.ToLower(r)) + s[size:]
+		},
+	}).Parse(g.Template())
+	if err != nil {
+		return errors.Errorf("parse: %w", err)
+	}
+
+	if err := t.Execute(&buf, Config{
+		PackageName: pkgName,
+		Data:        data,
+	}); err != nil {
+		return errors.Errorf("execute: %w", err)
+	}
+
+	formatted, err := format.Source(buf.Bytes())
+	if err != nil {
+		_, _ = os.Stderr.Write(buf.Bytes())
+		return errors.Errorf("format: %w", err)
+	}
+
+	if _, err := w.Write(formatted); err != nil {
+		return errors.Errorf("write: %w", err)
+	}
+	writeTime := time.Since(start)
+
+	fmt.Printf("Generation %s complete, collect time: %s, write time: %s\n",
+		g.Name(),
+		collectInfoTime,
+		writeTime,
+	)
+
+	return nil
+}
+
+func run(g Generator) (rErr error) {
+	set := flag.NewFlagSet(os.Args[0], flag.ExitOnError)
+	var (
+		o       = set.String("output", "", "output file")
+		pkgName = set.String("package", os.Getenv("GOPACKAGE"), "package name")
+	)
+	g.Flags(set)
+	if err := set.Parse(os.Args[1:]); err != nil {
+		return errors.Wrap(err, "parse")
+	}
+
+	if *pkgName == "" {
+		if *o != "" {
+			return errors.New("package name is empty")
+		}
+		*pkgName = "pkg"
+	}
+
+	var w io.Writer = os.Stdout
+	if path := *o; path != "" {
+		f, err := os.Create(path) // #nosec G304
+		if err != nil {
+			return err
+		}
+		defer multierr.AppendInvoke(&rErr, multierr.Close(f))
+		w = f
+	}
+
+	return generate(w, *pkgName, g)
+}
+
+// Main is generation main function.
+func Main(g Generator) {
+	if err := run(g); err != nil {
+		panic(err)
+	}
+}

pkg/gotd/telegram/message/internal/mktyping/main.go

@@ -0,0 +1,115 @@
+// Binary mktyping generates TypingActionBuilder.
+package main
+
+import (
+	"flag"
+	"reflect"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdp"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/internal/mkrun"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// Field represents type field.
+type Field struct {
+	// Name is Go name of field.
+	Name string
+	// Type is Go type of field.
+	Type string
+}
+
+// Type represents generated type.
+type Type struct {
+	// Name is Go name of type.
+	Name string
+	// Fields is slice of type fields.
+	Fields []Field
+	// SchemaType is related schema type.
+	SchemaType tdp.Type
+}
+
+const rawTemplate = `// Code generated by mktyping, DO NOT EDIT.
+package {{ $.PackageName }}
+
+import (
+	"context"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+var (
+	_ = tg.Invoker(nil)
+	_ = context.Context(nil)
+)
+
+{{- /*gotype: go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/internal/mkrun.Config*/ -}}
+{{- range $typ := $.Data }}
+{{ $helperName := trimSuffix (trimPrefix $typ.Name "SendMessage") "Action" -}}
+// {{ $helperName }} sends {{ $typ.Name }}.
+func (b *TypingActionBuilder) {{ $helperName }}(ctx context.Context,
+{{- range $f := $typ.Fields }}{{ lowerFirst $f.Name }} {{ $f.Type }},{{ end }}) error {
+	return b.send(ctx, &tg.{{ $typ.Name }}{
+		{{- range $f := $typ.Fields }}
+		{{ $f.Name }}: {{ lowerFirst $f.Name }},
+		{{- end }}
+	})
+}
+{{- end }}
+`
+
+var (
+	constructors = tg.ClassConstructorsMap()
+	create       = tg.TypesConstructorMap()
+)
+
+type generator struct{}
+
+func (g generator) Name() string {
+	return "mktyping"
+}
+
+func (g generator) Flags(set *flag.FlagSet) {}
+
+func (g generator) Template() string {
+	return rawTemplate
+}
+
+func (g generator) Data() (interface{}, error) {
+	var types []Type
+	for _, typeID := range constructors[tg.SendMessageActionClassName] {
+		v, ok := create[typeID]().(tdp.Object)
+		if !ok {
+			return nil, errors.Errorf("bad type %#x", typeID)
+		}
+		schemaType := v.TypeInfo()
+		tv := reflect.TypeOf(v).Elem()
+
+		var fields []Field
+		for _, field := range schemaType.Fields {
+			rf, ok := tv.FieldByName(field.Name)
+			if !ok {
+				return nil, errors.Errorf(
+					"field of %q type %q not found",
+					field.Name, schemaType.Name,
+				)
+			}
+			fields = append(fields, Field{
+				Name: field.Name,
+				Type: rf.Type.String(),
+			})
+		}
+		types = append(types, Type{
+			Name:       tv.Name(),
+			Fields:     fields,
+			SchemaType: v.TypeInfo(),
+		})
+	}
+
+	return types, nil
+}
+
+func main() {
+	mkrun.Main(generator{})
+}