package main

import (
	"bookmann/internal/config"
	"bookmann/internal/database"
	"bookmann/internal/handlers"
	"bookmann/templates"
	"bytes"
	"log"
	"net/http"

	"github.com/go-playground/validator/v10"
	"github.com/golang-jwt/jwt/v5"
	"github.com/labstack/echo-jwt/v4"
	"github.com/labstack/echo/v4"
	"github.com/labstack/echo/v4/middleware"
)

// CustomValidator wraps the go-playground validator
type CustomValidator struct {
	validator *validator.Validate
}

func (cv *CustomValidator) Validate(i interface{}) error {
	return cv.validator.Struct(i)
}

func main() {
	cfg := config.LoadConfig()

	dbPool, err := database.NewConnection(cfg.DatabaseURL())
	if err != nil {
		log.Fatal("Failed to connect to database:", err)
	}
	defer dbPool.Close()

	queries := database.New(dbPool)

	authHandler := handlers.NewAuthHandler(queries, cfg.JWTSecret)

	e := echo.New()

	// Set up validator
	e.Validator = &CustomValidator{validator: validator.New()}

	// Middleware
	e.Use(middleware.Logger())
	e.Use(middleware.Recover())
	e.Use(middleware.CORS())

	// Auth routes (no auth required)
	e.POST("/api/auth/register", authHandler.Register)
	e.POST("/api/auth/login", authHandler.Login)

	// JWT middleware for protected routes
	jwtMiddleware := echojwt.WithConfig(echojwt.Config{
		SigningKey: []byte(cfg.JWTSecret),
		ContextKey: "user",
		SuccessHandler: func(c echo.Context) {
			token := c.Get("user").(*jwt.Token)
			claims := token.Claims.(jwt.MapClaims)
			c.Set("user_id", claims["user_id"])
		},
	})

	// Protected routes
	protected := e.Group("/api", jwtMiddleware)
	protected.GET("/auth/profile", authHandler.GetProfile)
	protected.PUT("/auth/profile", authHandler.UpdateProfile)
	protected.GET("/auth/users", authHandler.ListUsers)
	protected.POST("/auth/ebook-folders", authHandler.AddEbookFolder)
	protected.GET("/auth/ebook-folders", authHandler.GetEbookFolders)
	protected.DELETE("/auth/ebook-folders", authHandler.DeleteEbookFolder)

	protected.DELETE("/auth/account", authHandler.DeleteAccount)
	protected.PUT("/library/scan-settings", authHandler.UpdateScanSettings)
	protected.GET("/library/scan-settings", authHandler.GetScanSettings)

	// Auth update routes
	authGroup := e.Group("/api/auth", jwtMiddleware)
	authGroup.PUT("/email", authHandler.UpdateEmail)
	authGroup.PUT("/username", authHandler.UpdateUsername)
	authGroup.PUT("/password", authHandler.UpdatePassword)
	authGroup.PUT("/theme", authHandler.UpdateTheme)
	// force rebuild

	// Static files
	e.Static("/static", "static")

	// Routes
	handlers.SetupRoutes(protected, queries)

	dummyUser := templates.User{ID: "", Username: "Admin", Email: "admin@example.com"}

	// Routes
	e.GET("/", func(c echo.Context) error {
		loggedIn := false
		var buf bytes.Buffer
		err := templates.Index(loggedIn).Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/login", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.Login().Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/register", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.Register().Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/admin", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.Admin(dummyUser).Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/admin/", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.Admin(dummyUser).Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/admin/profile", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.AdminProfile(dummyUser).Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	e.GET("/admin/library", func(c echo.Context) error {
		var buf bytes.Buffer
		err := templates.AdminLibrary(dummyUser).Render(c.Request().Context(), &buf)
		if err != nil {
			return err
		}
		return c.HTML(http.StatusOK, buf.String())
	})

	// Start server
	log.Printf("Starting server on port %s", cfg.ServerPort)
	e.Logger.Fatal(e.Start(":" + cfg.ServerPort))
}