package api

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"slices"
	"testing"
)

// The integration test runs the same alternation through Postgres's ~*, so the
// one pattern is exercised in both regex dialects it has to work in.
func TestHandleListSuspectSources_Integration(t *testing.T) {
	h, pool := testHandlers(t)
	truncateLibrary(t, pool)
	admin := seedUser(t, pool, "suspect-admin", "pw", true)

	artist := seedArtist(t, pool, "Gorillaz")
	humanz := seedAlbum(t, pool, artist.ID, "Humanz", 2017)
	seedTrack(t, pool, humanz.ID, artist.ID, "Saturnz Barz (Official Video)", 1, 180_000)
	seedTrack(t, pool, humanz.ID, artist.ID, "Momentz (Visualizer)", 2, 200_000)
	seedTrack(t, pool, humanz.ID, artist.ID, "Andromeda [Audio]", 3, 190_000)
	seedTrack(t, pool, humanz.ID, artist.ID, "Chain Reaction", 4, 190_000)
	seedTrack(t, pool, humanz.ID, artist.ID, "Busted and Blue", 5, 190_000)
	gone := seedTrack(t, pool, humanz.ID, artist.ID, "Ascension (Lyric Video)", 6, 156_000)
	if _, err := pool.Exec(context.Background(),
		`UPDATE tracks SET missing_since = now() WHERE id = $1`, gone.ID); err != nil {
		t.Fatalf("mark missing: %v", err)
	}

	req := httptest.NewRequest(http.MethodGet, "/api/admin/library/suspect-sources?limit=50", nil)
	req = withUser(req, admin)
	w := httptest.NewRecorder()
	h.handleListSuspectSources(w, req)
	if w.Code != http.StatusOK {
		t.Fatalf("status %d: %s", w.Code, w.Body.String())
	}

	var resp adminSuspectSourcesResponse
	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
		t.Fatalf("decode: %v", err)
	}
	// Three present files carry a marker. "Chain Reaction" and "Busted and
	// Blue" carry none, and the lyric video's file is missing.
	if resp.Total != 3 {
		t.Errorf("total = %d, want 3", resp.Total)
	}
	if len(resp.Groups) != 1 {
		t.Fatalf("groups = %d, want 1 (one folder)", len(resp.Groups))
	}
	got := map[string][]string{}
	for _, tr := range resp.Groups[0].Tracks {
		got[tr.Title] = tr.Markers
	}
	want := map[string][]string{
		"Saturnz Barz (Official Video)": {"music video"},
		"Momentz (Visualizer)":          {"visualiser"},
		"Andromeda [Audio]":             {"[Audio]"},
	}
	if len(got) != len(want) {
		t.Fatalf("tracks = %v, want %v", got, want)
	}
	for title, labels := range want {
		if !slices.Equal(got[title], labels) {
			t.Errorf("%s: markers %v, want %v", title, got[title], labels)
		}
	}
}