package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"html/template"
	"io"
	"net/http"
	"todo/frontend"
	"todo/models"

	"github.com/gofiber/fiber/v2"
)

var Tmpl *template.Template

func doGet(url string) ([]byte, error) {
	// Perform an HTTP GET request
	response, err := http.Get(url)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()

	// Read the response body
	body, err := io.ReadAll(response.Body)
	if err != nil {
		return nil, err
	}

	return body, nil
}

func SetupTemplates() error {

	tmpl, err := template.New("").ParseFS(frontend.Frontend, "templates/*.html")

	if err != nil {
		return err
	}

	Tmpl = tmpl

	return nil

}

func main() {

	SetupTemplates()

	app := fiber.New(fiber.Config{
		StrictRouting:         false,
		DisableStartupMessage: false,
	})

	app.Static("/", "./frontend")

	app.Get("/", func(c *fiber.Ctx) error {

		var result bytes.Buffer

		err := Tmpl.ExecuteTemplate(&result, "index", nil)
		if err != nil {
			fmt.Println(err)
			return err
		}

		c.Set("Content-Type", "text/html")

		return c.SendString(result.String())

	})

	app.Get("/users", func(c *fiber.Ctx) error {

		response, err := doGet("https://dummyjson.com/users")
		if err != nil {
			fmt.Println(err)
			return err
		}

		var users models.Users

		err = json.Unmarshal(response, &users)
		if err != nil {
			fmt.Println(err)
			return err
		}

		var result bytes.Buffer

		err = Tmpl.ExecuteTemplate(&result, "users", users)
		if err != nil {
			fmt.Println(err)
			return err
		}

		return c.SendString(result.String())
	})

	app.Listen(":3000")
}