package soundcloud

import (
	"context"
	"fmt"
	"strings"
	"testing"

	"streamrip-go/internal/config"
)

func TestGetTrackMetadataAndDownloadable(t *testing.T) {
	cfgData := config.DefaultConfigData()
	c := New(&config.Config{File: cfgData, Session: cfgData})
	c.loggedIn = true
	c.run = func(_ context.Context, _ string, args ...string) ([]byte, error) {
		joined := strings.Join(args, " ")
		if strings.Contains(joined, "--no-playlist") {
			return []byte(`{"title":"Lean On","uploader":"Major Lazer","url":"https://cdn.example/audio.m4a","ext":"m4a","thumbnail":"https://img.example/cover.jpg"}`), nil
		}
		return nil, fmt.Errorf("unexpected args: %v", args)
	}

	meta, err := c.GetMetadata(context.Background(), "https://soundcloud.com/a/b", "track")
	if err != nil {
		t.Fatalf("GetMetadata() error = %v", err)
	}
	if stringFromAny(meta["title"]) != "Lean On" {
		t.Fatalf("title = %q, want Lean On", stringFromAny(meta["title"]))
	}

	d, err := c.GetDownloadable(context.Background(), "https://soundcloud.com/a/b", 0)
	if err != nil {
		t.Fatalf("GetDownloadable() error = %v", err)
	}
	if d.URL != "https://cdn.example/audio.m4a" || d.Extension != "m4a" {
		t.Fatalf("unexpected downloadable: %+v", d)
	}
}

func TestGetPlaylistMetadata(t *testing.T) {
	cfgData := config.DefaultConfigData()
	c := New(&config.Config{File: cfgData, Session: cfgData})
	c.loggedIn = true
	c.run = func(_ context.Context, _ string, args ...string) ([]byte, error) {
		joined := strings.Join(args, " ")
		if strings.Contains(joined, "--skip-download") && !strings.Contains(joined, "--no-playlist") {
			return []byte(`{"title":"Road Trip","entries":[{"webpage_url":"https://soundcloud.com/a/t1"},{"url":"https://soundcloud.com/a/t2"}]}`), nil
		}
		return nil, fmt.Errorf("unexpected args: %v", args)
	}

	meta, err := c.GetMetadata(context.Background(), "https://soundcloud.com/a/sets/road-trip", "playlist")
	if err != nil {
		t.Fatalf("GetMetadata() error = %v", err)
	}
	if stringFromAny(meta["name"]) != "Road Trip" {
		t.Fatalf("name = %q, want Road Trip", stringFromAny(meta["name"]))
	}
	tracksMap, ok := meta["tracks"].(map[string]any)
	if !ok {
		t.Fatalf("tracks missing")
	}
	items := asAnySlice(tracksMap["items"])
	if len(items) != 2 {
		t.Fatalf("playlist items len = %d, want 2", len(items))
	}
}

func TestSearchTrack(t *testing.T) {
	cfgData := config.DefaultConfigData()
	c := New(&config.Config{File: cfgData, Session: cfgData})
	c.loggedIn = true
	c.run = func(_ context.Context, _ string, args ...string) ([]byte, error) {
		joined := strings.Join(args, " ")
		if strings.Contains(joined, "scsearch2:lean on") {
			return []byte(`{"entries":[{"title":"Lean On","uploader":"Major Lazer","webpage_url":"https://soundcloud.com/a/b"}]}`), nil
		}
		return nil, fmt.Errorf("unexpected args: %v", args)
	}

	pages, err := c.Search(context.Background(), "track", "lean on", 2)
	if err != nil {
		t.Fatalf("Search() error = %v", err)
	}
	if len(pages) != 1 {
		t.Fatalf("pages len = %d, want 1", len(pages))
	}
	items := asAnySlice(pages[0]["items"])
	if len(items) != 1 {
		t.Fatalf("items len = %d, want 1", len(items))
	}
}

func TestLoginShowsYtDlpHint(t *testing.T) {
	cfgData := config.DefaultConfigData()
	c := New(&config.Config{File: cfgData, Session: cfgData})
	c.bin = "definitely-not-a-real-yt-dlp-bin"
	err := c.Login(context.Background())
	if err == nil {
		t.Fatalf("expected login error")
	}
	if !strings.Contains(strings.ToLower(err.Error()), "yt-dlp is required") {
		t.Fatalf("expected yt-dlp hint in error, got: %v", err)
	}
}