HUGE refactor. working towards web UI

templates/text.go

@@ -0,0 +1,108 @@
+package templates
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"path"
+	"strings"
+	"text/template"
+	"time"
+
+	"arimelody.space/melody-vod-manager/scanner"
+)
+
+
+
+type (
+	TextTemplates struct {
+		Title *template.Template
+		Description *template.Template
+		DefaultTags []string
+	}
+
+	TextTemplateData struct {
+		Title string
+		Part uint
+		Date time.Time
+		Category *scanner.Category
+	}
+)
+
+const DefaultTitleTemplate =
+"{{.Title}} - {{FormatTime .Date \"02 Jan 2006\"}}"
+const DefaultDescriptionTemplate =
+"Streamed on {{FormatTime .Date \"02 January 2006\"}}"
+
+func FetchTemplates(ctx context.Context, templateDir string) (*TextTemplates, error) {
+	tmpl := TextTemplates{}
+	logger := slog.Default().WithGroup("TEMPLATE")
+
+	var tagsPath = path.Join(templateDir, "tags.txt")
+	var titlePath = path.Join(templateDir, "title.txt")
+	var descriptionPath = path.Join(templateDir, "description.txt")
+
+	// tags
+	if tagsFile, err := os.ReadFile(tagsPath); err == nil {
+		tmpl.DefaultTags = strings.Split(string(tagsFile), "\n")
+	} else {
+		if !os.IsNotExist(err) { return nil, err }
+
+		logger.Info(fmt.Sprintf(
+			"%s not found. No default tags will be used.",
+			tagsPath,
+		))
+		tmpl.DefaultTags = []string{}
+	}
+
+	// title
+	titleTemplate := template.New("title").Funcs(templateFuncs)
+	if titleFile, err := os.ReadFile(titlePath); err == nil {
+		tmpl.Title, err = titleTemplate.Parse(string(titleFile))
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse title template: %v", err)
+		}
+	} else {
+		if !os.IsNotExist(err) { return nil, err }
+
+		logger.Info(
+			fmt.Sprintf(
+				"%s not found. Falling back to default template:",
+				titlePath,
+			),
+			"template",
+			DefaultTitleTemplate,
+		)
+		tmpl.Title, err = titleTemplate.Parse(DefaultTitleTemplate)
+		if err != nil { panic(err) }
+
+		os.WriteFile(titlePath, []byte(DefaultTitleTemplate), 0644)
+	}
+
+	// description
+	descriptionTemplate := template.New("description").Funcs(templateFuncs)
+	if descriptionFile, err := os.ReadFile(descriptionPath); err == nil {
+		tmpl.Description, err = descriptionTemplate.Parse(string(descriptionFile))
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse description template: %v", err)
+		}
+	} else {
+		if !os.IsNotExist(err) { return nil, err }
+
+		logger.Info(
+			fmt.Sprintf(
+				"%s not found. Falling back to default template:",
+				descriptionPath,
+			),
+			"template",
+			DefaultDescriptionTemplate,
+		)
+		tmpl.Description, err = descriptionTemplate.Parse(DefaultDescriptionTemplate)
+		if err != nil { panic(err) }
+
+		os.WriteFile(descriptionPath, []byte(DefaultDescriptionTemplate), 0644)
+	}
+
+	return &tmpl, nil
+}