package main

import (
	"context"
	"fmt"
	"log"
	"os"
	"strings"
	"time"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/cors"
	"github.com/gofiber/fiber/v2/middleware/logger"
	"github.com/gooseek/backend/internal/search"
	"github.com/gooseek/backend/pkg/config"
)

func main() {
	cfg, err := config.Load()
	if err != nil {
		log.Fatal("Failed to load config:", err)
	}

	searchClient := search.NewSearXNGClient(cfg)

	app := fiber.New(fiber.Config{
		ReadTimeout:  30 * time.Second,
		WriteTimeout: 30 * time.Second,
		IdleTimeout:  60 * time.Second,
	})

	app.Use(logger.New())
	app.Use(cors.New())

	app.Get("/health", func(c *fiber.Ctx) error {
		return c.JSON(fiber.Map{"status": "ok"})
	})

	app.Get("/api/v1/search", func(c *fiber.Ctx) error {
		query := c.Query("q")
		if query == "" {
			return c.Status(400).JSON(fiber.Map{"error": "Query parameter 'q' is required"})
		}

		opts := &search.SearchOptions{}

		if engines := c.Query("engines"); engines != "" {
			opts.Engines = strings.Split(engines, ",")
		}
		if categories := c.Query("categories"); categories != "" {
			opts.Categories = strings.Split(categories, ",")
		}
		if pageno := c.QueryInt("pageno", 1); pageno > 0 {
			opts.PageNo = pageno
		}
		if lang := c.Query("language"); lang != "" {
			opts.Language = lang
		}

		ctx, cancel := context.WithTimeout(context.Background(), cfg.SearchTimeout)
		defer cancel()

		result, err := searchClient.Search(ctx, query, opts)
		if err != nil {
			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
		}

		return c.JSON(result)
	})

	app.Get("/api/v1/search/images", func(c *fiber.Ctx) error {
		query := c.Query("q")
		if query == "" {
			return c.Status(400).JSON(fiber.Map{"error": "Query parameter 'q' is required"})
		}

		ctx, cancel := context.WithTimeout(context.Background(), cfg.SearchTimeout)
		defer cancel()

		result, err := searchClient.Search(ctx, query, &search.SearchOptions{
			Categories: []string{"images"},
			PageNo:     1,
		})
		if err != nil {
			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
		}

		return c.JSON(result)
	})

	app.Get("/api/v1/search/videos", func(c *fiber.Ctx) error {
		query := c.Query("q")
		if query == "" {
			return c.Status(400).JSON(fiber.Map{"error": "Query parameter 'q' is required"})
		}

		ctx, cancel := context.WithTimeout(context.Background(), cfg.SearchTimeout)
		defer cancel()

		result, err := searchClient.Search(ctx, query, &search.SearchOptions{
			Categories: []string{"videos"},
			PageNo:     1,
		})
		if err != nil {
			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
		}

		return c.JSON(result)
	})

	app.Get("/api/v1/search/media", func(c *fiber.Ctx) error {
		query := c.Query("q")
		if query == "" {
			return c.Status(400).JSON(fiber.Map{"error": "Query parameter 'q' is required"})
		}

		maxImages := c.QueryInt("maxImages", 8)
		maxVideos := c.QueryInt("maxVideos", 6)

		ctx, cancel := context.WithTimeout(context.Background(), cfg.SearchTimeout*2)
		defer cancel()

		result, err := searchClient.SearchMedia(ctx, query, &search.MediaSearchOptions{
			MaxImages: maxImages,
			MaxVideos: maxVideos,
		})
		if err != nil {
			return c.Status(500).JSON(fiber.Map{"error": err.Error()})
		}

		return c.JSON(result)
	})

	port := cfg.SearchSvcPort
	log.Printf("search-svc listening on :%d", port)
	log.Fatal(app.Listen(fmt.Sprintf(":%d", port)))
}

func init() {
	if os.Getenv("PORT") == "" {
		os.Setenv("PORT", "3001")
	}
}