add monitor sync jobs and duplicate-safe qobuz updates

internal/jobconfig/config.go

@@ -0,0 +1,76 @@
+package jobconfig
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/BurntSushi/toml"
+)
+
+type File struct {
+	Global    GlobalConfig    `toml:"global"`
+	Playlists []PlaylistEntry `toml:"playlist"`
+}
+
+type GlobalConfig struct {
+	Monitor         *bool  `toml:"monitor"`
+	MonitorOnce     *bool  `toml:"monitor_once"`
+	MonitorTransfer *bool  `toml:"monitor_transfer"`
+	MonitorInterval string `toml:"monitor_interval"`
+	SyncMode        string `toml:"sync_mode"`
+	IncludeLiked    *bool  `toml:"include_liked"`
+	DryRun          *bool  `toml:"dry_run"`
+	PublicPlaylists *bool  `toml:"public_playlists"`
+	Concurrency     *int   `toml:"concurrency"`
+	ReportPath      string `toml:"report"`
+}
+
+type PlaylistEntry struct {
+	URL              string `toml:"url"`
+	SyncMode         string `toml:"sync_mode"`
+	TargetPlaylistID int64  `toml:"target_playlist_id"`
+	Enabled          *bool  `toml:"enabled"`
+}
+
+func Load(path string) (File, error) {
+	var cfg File
+	if strings.TrimSpace(path) == "" {
+		return cfg, fmt.Errorf("empty config path")
+	}
+
+	b, err := os.ReadFile(path)
+	if err != nil {
+		return cfg, err
+	}
+
+	if err := toml.Unmarshal(b, &cfg); err != nil {
+		return cfg, fmt.Errorf("parse toml config: %w", err)
+	}
+
+	for i, p := range cfg.Playlists {
+		if strings.TrimSpace(p.URL) == "" {
+			return cfg, fmt.Errorf("playlist entry %d missing url", i+1)
+		}
+		mode := strings.ToLower(strings.TrimSpace(p.SyncMode))
+		if mode != "" && mode != "append" && mode != "mirror" {
+			return cfg, fmt.Errorf("playlist entry %d has invalid sync_mode %q", i+1, p.SyncMode)
+		}
+		if p.TargetPlaylistID < 0 {
+			return cfg, fmt.Errorf("playlist entry %d has invalid target_playlist_id %d", i+1, p.TargetPlaylistID)
+		}
+	}
+
+	if mode := strings.ToLower(strings.TrimSpace(cfg.Global.SyncMode)); mode != "" && mode != "append" && mode != "mirror" {
+		return cfg, fmt.Errorf("invalid global sync_mode %q", cfg.Global.SyncMode)
+	}
+
+	return cfg, nil
+}
+
+func (p PlaylistEntry) IsEnabled() bool {
+	if p.Enabled == nil {
+		return true
+	}
+	return *p.Enabled
+}