package main

import (
	"backend/config"
	"backend/queries"
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"strconv"
	"strings"
	"text/template"

	"github.com/labstack/echo/v4"
)

type Server struct {
	config *config.Config
}

func NewServer(cfg *config.Config) (*Server, error) {
	return &Server{
		config: cfg,
	}, nil
}

func (s *Server) SetupRoutes() *echo.Echo {
	funcs := map[string]any{
		"contains":  strings.Contains,
		"hasPrefix": strings.HasPrefix,
		"hasSuffix": strings.HasSuffix,
		"getImage": func(txt string) string {
			return txt[7:]
		},
		"isWebp": func(txt string) bool {
			return strings.Contains(txt, "webp")
		},
	}
	t := &Template{
		templates: template.Must(template.New("").Funcs(funcs).ParseGlob("public/views/*.html")),
	}
	e := echo.New()
	e.Renderer = t

	// MISC
	e.Static("/static", "public/static")
	e.GET("/", func(c echo.Context) error {
		return c.Render(http.StatusOK, "main", map[string]any{
			"imageOption":      s.config.Images.Enabled,
			"concurrentImages": s.config.Images.ConcurrentLimit,
		})
	})
	e.GET("/test", func(c echo.Context) error {

		return c.JSONPretty(http.StatusOK,
			map[string]any{
				"files": "",
			}, "  ")
	})
	e.POST("/testpost", func(c echo.Context) error {
		// Get the form value
		test := c.FormValue("test")
		fmt.Println("test:", test)
		return c.String(http.StatusOK, "OK")
	})
	e.GET("/health", func(c echo.Context) error {
		h := queries.HealthCheck()
		return c.JSONPretty(http.StatusOK, fmt.Sprintf("DB Connection: %v", h), "  ")
	})

	e.GET("/update", func(c echo.Context) error {
		//da inizializzare on server startup non qui
		u := NewUpdater(UpdaterConfig{
			isDryRun:          c.QueryParam("dryrun") == "true",
			codFilter:         c.QueryParam("cod"),
			forceMediaRefresh: c.QueryParam("forcemedia") == "true",
		})
		err := u.Update()
		if err != nil {
			return c.String(http.StatusInternalServerError, err.Error())
		}
		return c.String(http.StatusOK, "update")
	})

	//IMAGE ROUTES
	e.GET("/initcwebp", func(c echo.Context) error {
		Conversion("test.jpg")
		return c.String(http.StatusOK, "Cwebp initialized")
	})

	e.POST("/image-option-toggle", func(c echo.Context) error {
		// Toggle the imageOption value
		s.config.Images.Enabled = !s.config.Images.Enabled

		// Convert the boolean value to a string and set the environment variable
		os.Setenv("IMAGEOPTION", strconv.FormatBool(s.config.Images.Enabled))

		return c.String(http.StatusOK, "OK")
	})

	return e
}

func (s *Server) Start() {
	e := s.SetupRoutes()

	Conversion("test.jpg")
	fmt.Println("Image Option: ", s.config.Images.Enabled)
	fmt.Println("Concurrent Images: ", s.config.Images.ConcurrentLimit)
	fmt.Println("Server url: http://localhost:" + strconv.Itoa(s.config.Server.Port))

	e.Logger.Info(e.Start(":" + strconv.Itoa(s.config.Server.Port)))
}

func main() {
	cfg := config.Load()
	server, err := NewServer(cfg)
	if err != nil {
		log.Fatalf("Server initialization error: %v", err)
	}
	server.Start()
}

type Template struct {
	templates *template.Template
}

func (t *Template) Render(w io.Writer, name string, data any, c echo.Context) error {
	return t.templates.ExecuteTemplate(w, name, data)
}