package ctrlsubsonic

import (
	"log"
	"net/http"
	"time"
	"unicode"

	"senan.xyz/g/gonic/model"
	"senan.xyz/g/gonic/scanner"
	"senan.xyz/g/gonic/server/ctrlsubsonic/spec"
	"senan.xyz/g/gonic/server/key"
	"senan.xyz/g/gonic/server/lastfm"
	"senan.xyz/g/gonic/server/parsing"
)

func lowerUDecOrHash(in string) string {
	lower := unicode.ToLower(rune(in[0]))
	if !unicode.IsLetter(lower) {
		return "#"
	}
	return string(lower)
}

func (c *Controller) ServeGetLicence(r *http.Request) *spec.Response {
	sub := spec.NewResponse()
	sub.Licence = &spec.Licence{
		Valid: true,
	}
	return sub
}

func (c *Controller) ServePing(r *http.Request) *spec.Response {
	return spec.NewResponse()
}

func (c *Controller) ServeScrobble(r *http.Request) *spec.Response {
	id, err := parsing.GetIntParam(r, "id")
	if err != nil {
		return spec.NewError(10, "please provide an `id` parameter")
	}
	// fetch user to get lastfm session
	user := r.Context().Value(key.User).(*model.User)
	if user.LastFMSession == "" {
		return spec.NewError(0, "you don't have a last.fm session")
	}
	// fetch track for getting info to send to last.fm function
	track := &model.Track{}
	c.DB.
		Preload("Album").
		Preload("Artist").
		First(track, id)
	// scrobble with above info
	err = lastfm.Scrobble(
		c.DB.GetSetting("lastfm_api_key"),
		c.DB.GetSetting("lastfm_secret"),
		user.LastFMSession,
		track,
		// clients will provide time in miliseconds, so use that or
		// instead convert UnixNano to miliseconds
		parsing.GetIntParamOr(r, "time", int(time.Now().UnixNano()/1e6)),
		parsing.GetStrParamOr(r, "submission", "true") != "false",
	)
	if err != nil {
		return spec.NewError(0, "error when submitting: %v", err)
	}
	return spec.NewResponse()
}

func (c *Controller) ServeGetMusicFolders(r *http.Request) *spec.Response {
	folders := &spec.MusicFolders{}
	folders.List = []*spec.MusicFolder{
		{ID: 1, Name: "music"},
	}
	sub := spec.NewResponse()
	sub.MusicFolders = folders
	return sub
}

func (c *Controller) ServeStartScan(r *http.Request) *spec.Response {
	go func() {
		err := scanner.
			New(c.DB, c.MusicPath).
			Start()
		if err != nil {
			log.Printf("error while scanning: %v\n", err)
		}
	}()
	return c.ServeGetScanStatus(r)
}

func (c *Controller) ServeGetScanStatus(r *http.Request) *spec.Response {
	var trackCount int
	c.DB.
		Model(model.Track{}).
		Count(&trackCount)
	sub := spec.NewResponse()
	sub.ScanStatus = &spec.ScanStatus{
		Scanning: scanner.IsScanning(),
		Count:    trackCount,
	}
	return sub
}

func (c *Controller) ServeGetUser(r *http.Request) *spec.Response {
	user := r.Context().Value(key.User).(*model.User)
	sub := spec.NewResponse()
	sub.User = &spec.User{
		Username:          user.Name,
		AdminRole:         user.IsAdmin,
		ScrobblingEnabled: user.LastFMSession != "",
		Folder:            []int{1},
	}
	return sub
}

func (c *Controller) ServeNotFound(r *http.Request) *spec.Response {
	return spec.NewError(70, "view not found")
}