package main

import (
	"fmt"
	"log"
	"net/http"
	"os"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/template/html/v2"
	"lmika.dev/web/isknow/models"
)

func main() {
	questions := models.QuestionSet{
		Questions: []models.Question{
			{
				ID:   "1",
				Text: "What is 1 + 1?",
				Choices: []models.Choice{
					{Text: "1"},
					{Text: "2", IsRight: true},
					{Text: "3"},
					{Text: "4"},
				},
				Fact: "1 + 1 = 2",
			},
			{
				ID:   "2",
				Text: "What is 3 * 5?",
				Choices: []models.Choice{
					{Text: "5"},
					{Text: "10"},
					{Text: "15", IsRight: true},
					{Text: "20"},
				},
				Fact: "I can't use the iPad for coding this",
			},
		},
	}

	prefix, _ := os.LookupEnv("PATH_PREFIX")

	engine := html.New("./views", ".html")
	engine.AddFunc("prefix", func() string { return prefix })

	app := fiber.New(fiber.Config{
		Views:       engine,
		ViewsLayout: "layout",
	})

	app.Get("/", func(c *fiber.Ctx) error {
		return c.Render("index", fiber.Map{})
	})
	app.Get("/end", func(c *fiber.Ctx) error {
		return c.Render("end", fiber.Map{})
	})
	app.Get("/:qid", func(c *fiber.Ctx) error {
		qID, err := c.ParamsInt("qid")
		if err != nil {
			return c.SendStatus(http.StatusBadRequest)
		}

		idx := qID - 1
		if idx < 0 || idx >= len(questions.Questions) {
			return c.SendStatus(http.StatusBadRequest)
		}

		rq, err := questions.Questions[idx].Render()
		if err != nil {
			return err
		}

		nextURL := prefix + "/end"
		reachedEnd := true
		if idx+1 < len(questions.Questions) {
			nextURL = fmt.Sprintf("%v/%d", prefix, idx+2)
			reachedEnd = true
		}

		return c.Render("question", fiber.Map{
			"q":          rq,
			"nextURL":    nextURL,
			"reachedEnd": reachedEnd,
		})
	})
	app.Static("/assets", "./public")

	log.Fatal(app.Listen(":3000"))
}