package routes

import (
	"fmt"

	"git.readonly.ch/bouzoure/gpx-downloader/providers"
	"github.com/gofiber/fiber/v2"
	"github.com/tkrajina/gpxgo/gpx"
)

func Fetch(c *fiber.Ctx) error {
	sourceUrl := c.FormValue("url")
	if len(sourceUrl) <= 0 {
		c.SendStatus(422)
		return c.SendString("Error: URL is empty")
	}

	var gpxFile gpx.GPX
	var err error
	var filename string

	// Check if link is Suisse Mobile
	suisseMobileId := providers.SuisseMobileCheckURL(sourceUrl)
	if suisseMobileId > 0 {
		filename = fmt.Sprintf(
			"suisse_mobile_%d",
			suisseMobileId,
		)

		gpxFile, err = providers.SuisseMobileFetch(suisseMobileId)
		if err != nil {
			return err
		}
	}

	if len(filename) <= 0 {
		c.SendStatus(422)
		return c.SendString("Error: URL is not supported")
	}

	xml, err := gpxFile.ToXml(gpx.ToXmlParams{})
	if err != nil {
		return err
	}

	c.Set("Content-Type", "octet-stream")
	c.Set("Content-Disposition", fmt.Sprintf(
		"attechment,filename=%s.gpx",
		filename,
	))

	return c.Send(xml)
}