package organize

import (
	"os"
	"path/filepath"
	"testing"

	"git.meatbag.se/varl/subsyt/internal/config"
	"git.meatbag.se/varl/subsyt/internal/fsops"
	"git.meatbag.se/varl/subsyt/internal/metadata"
)

func TestOrganizerProcess(t *testing.T) {
	root := t.TempDir()

	paths := config.Paths{
		DownloadRoot: filepath.Join(root, "downloads"),
		ChannelsDir:  filepath.Join(root, "downloads", "channels"),
		EpisodesDir:  filepath.Join(root, "downloads", "episodes"),
		MediaDir:     filepath.Join(root, "library"),
	}

	if err := os.MkdirAll(paths.ChannelsDir, 0o755); err != nil {
		t.Fatalf("mkdir channels: %v", err)
	}
	if err := os.MkdirAll(paths.EpisodesDir, 0o755); err != nil {
		t.Fatalf("mkdir episodes: %v", err)
	}

	showSub := filepath.Join(paths.ChannelsDir, "sNA")
	if err := os.MkdirAll(showSub, 0o755); err != nil {
		t.Fatalf("mkdir show subdir: %v", err)
	}

	showBase := filepath.Join(showSub, "test-channel")
	showInfo := showBase + ".info.json"
	showImage := showBase + ".jpg"
	showJSON := `{"channel":"Test Channel","channel_id":"chan123","description":"Show description","thumbnails":[]}`
	if err := os.WriteFile(showInfo, []byte(showJSON), 0o644); err != nil {
		t.Fatalf("write show info: %v", err)
	}
	if err := os.WriteFile(showImage, []byte("poster"), 0o644); err != nil {
		t.Fatalf("write show image: %v", err)
	}

	seasonDir := filepath.Join(paths.EpisodesDir, "s2024")
	if err := os.MkdirAll(seasonDir, 0o755); err != nil {
		t.Fatalf("mkdir season: %v", err)
	}
	base := filepath.Join(seasonDir, "Test Channel.s2024Se0210S.Sample.abc123")
	infoPath := base + ".info.json"
	videoPath := base + ".mp4"
	subsPath := base + ".en.vtt"
	thumbPath := base + ".jpg"
	epJSON := `{"title":"Episode","channel":"Test Channel","id":"abc123","description":"Episode description","upload_date":"20240210","ext":"mp4"}`
	if err := os.WriteFile(infoPath, []byte(epJSON), 0o644); err != nil {
		t.Fatalf("write episode info: %v", err)
	}
	if err := os.WriteFile(videoPath, []byte("video"), 0o644); err != nil {
		t.Fatalf("write episode video: %v", err)
	}
	if err := os.WriteFile(subsPath, []byte("subtitles"), 0o644); err != nil {
		t.Fatalf("write subtitles: %v", err)
	}
	if err := os.WriteFile(thumbPath, []byte("thumb"), 0o644); err != nil {
		t.Fatalf("write thumb: %v", err)
	}

	shows, err := metadata.ScanShows(paths.ChannelsDir)
	if err != nil {
		t.Fatalf("scan shows: %v", err)
	}
	episodes, err := metadata.ScanEpisodes(paths.EpisodesDir)
	if err != nil {
		t.Fatalf("scan episodes: %v", err)
	}

	organizer := Organizer{
		Paths: paths,
		FS:    fsops.Manager{DryRun: false},
	}
	if err := organizer.Prepare(); err != nil {
		t.Fatalf("prepare: %v", err)
	}

	if err := organizer.ProcessShows(shows); err != nil {
		t.Fatalf("process shows: %v", err)
	}
	if err := organizer.ProcessEpisodes(episodes); err != nil {
		t.Fatalf("process episodes: %v", err)
	}

	showDir := filepath.Join(paths.MediaDir, "Test Channel")
	seasonOut := filepath.Join(showDir, "s2024")
	if _, err := os.Stat(filepath.Join(showDir, "tvshow.nfo")); err != nil {
		t.Fatalf("expected tvshow.nfo: %v", err)
	}
	if _, err := os.Stat(filepath.Join(showDir, "poster.jpg")); err != nil {
		t.Fatalf("expected poster.jpg: %v", err)
	}
	if _, err := os.Stat(filepath.Join(seasonOut, filepath.Base(videoPath))); err != nil {
		t.Fatalf("expected moved video: %v", err)
	}
	if _, err := os.Stat(filepath.Join(seasonOut, "Test Channel.s2024Se0210S.Sample.abc123-thumb.jpg")); err != nil {
		t.Fatalf("expected moved thumbnail: %v", err)
	}
	if _, err := os.Stat(filepath.Join(seasonOut, "Test Channel.s2024Se0210S.Sample.abc123.en.vtt")); err != nil {
		t.Fatalf("expected moved subtitles: %v", err)
	}
	if _, err := os.Stat(filepath.Join(seasonOut, "Test Channel.s2024Se0210S.Sample.abc123.nfo")); err != nil {
		t.Fatalf("expected episode nfo: %v", err)
	}

	if _, err := os.Stat(infoPath); !os.IsNotExist(err) {
		t.Fatalf("expected episode info removed, got err=%v", err)
	}
	if _, err := os.Stat(showInfo); !os.IsNotExist(err) {
		t.Fatalf("expected show info removed, got err=%v", err)
	}
}