package server

import (
	"bytes"
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"testing"
	"time"

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

func TestHandleVideosRequiresAuth(t *testing.T) {
	queue, err := NewQueue("")
	if err != nil {
		t.Fatalf("new queue: %v", err)
	}

	s := NewServer(config.Http_api{Auth_token: "secret"}, "/videos", queue)

	req := httptest.NewRequest(http.MethodPost, "/v1/videos", bytes.NewBufferString(`{"url":"https://example.com"}`))
	rec := httptest.NewRecorder()

	s.handleVideos(rec, req)

	if rec.Result().StatusCode != http.StatusUnauthorized {
		t.Fatalf("expected unauthorized, got %d", rec.Result().StatusCode)
	}
}

func TestHandleVideosSuccess(t *testing.T) {
	queue, err := NewQueue("")
	if err != nil {
		t.Fatalf("new queue: %v", err)
	}

	s := NewServer(config.Http_api{}, "/videos", queue)

	payload := map[string]interface{}{
		"url":           "https://example.com/watch?v=123",
		"out_dir":       "channel",
		"metadata_only": true,
	}

	body, err := json.Marshal(payload)
	if err != nil {
		t.Fatalf("marshal: %v", err)
	}

	req := httptest.NewRequest(http.MethodPost, "/v1/videos", bytes.NewReader(body))
	rec := httptest.NewRecorder()

	s.handleVideos(rec, req)

	if rec.Result().StatusCode != http.StatusAccepted {
		t.Fatalf("expected accepted, got %d", rec.Result().StatusCode)
	}

	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
	defer cancel()

	item, err := queue.Next(ctx)
	if err != nil {
		t.Fatalf("next: %v", err)
	}

	expectedOutDir := filepath.Join("/videos", "channel")
	if item.Request.OutDir != expectedOutDir {
		t.Fatalf("expected out dir %s, got %s", expectedOutDir, item.Request.OutDir)
	}

	if !item.Request.MetadataOnly {
		t.Fatalf("expected metadata flag to be true")
	}

	if err := queue.MarkDone(item.ID); err != nil {
		t.Fatalf("mark done: %v", err)
	}
}

func TestHandleStatus(t *testing.T) {
	queue, err := NewQueue("")
	if err != nil {
		t.Fatalf("new queue: %v", err)
	}

	s := NewServer(config.Http_api{Auth_token: "secret"}, "/videos", queue)

	req := httptest.NewRequest(http.MethodGet, "/status", nil)
	rec := httptest.NewRecorder()

	s.handleStatus(rec, req)

	if rec.Result().StatusCode != http.StatusUnauthorized {
		t.Fatalf("expected unauthorized, got %d", rec.Result().StatusCode)
	}

	if _, err := queue.Enqueue(VideoRequest{URL: "https://example.com/watch?v=1", OutDir: "/videos", MetadataOnly: false}); err != nil {
		t.Fatalf("enqueue: %v", err)
	}

	req = httptest.NewRequest(http.MethodGet, "/status", nil)
	req.Header.Set("Authorization", "Bearer secret")
	rec = httptest.NewRecorder()

	s.handleStatus(rec, req)

	if rec.Result().StatusCode != http.StatusOK {
		t.Fatalf("expected ok, got %d", rec.Result().StatusCode)
	}

	var payload struct {
		Count int         `json:"count"`
		Items []queueItem `json:"items"`
	}

	if err := json.NewDecoder(rec.Body).Decode(&payload); err != nil {
		t.Fatalf("decode: %v", err)
	}

	if payload.Count != 1 {
		t.Fatalf("expected count 1, got %d", payload.Count)
	}

	if len(payload.Items) != 1 {
		t.Fatalf("expected one item, got %d", len(payload.Items))
	}

	if payload.Items[0].Request.URL == "" {
		t.Fatalf("expected item url to be set")
	}
}