package music

import (
	"arimelody-web/admin/templates"
	"arimelody-web/controller"
	"arimelody-web/model"
	"fmt"
	"net/http"
	"os"
)

func Handler(app *model.AppState) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        fmt.Println(r.URL.Path)

        mux := http.NewServeMux()

        mux.Handle("/release/", http.StripPrefix("/release", serveRelease(app)))
        mux.Handle("/artist/", http.StripPrefix("/artist", serveArtist(app)))
        mux.Handle("/track/", http.StripPrefix("/track", serveTrack(app)))
        mux.Handle("/", musicHandler(app))

        mux.ServeHTTP(w, r)
    })
}

func musicHandler(app *model.AppState) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        session := r.Context().Value("session").(*model.Session)

        releases, err := controller.GetAllReleases(app.DB, false, 0, true)
        if err != nil {
            fmt.Fprintf(os.Stderr, "WARN: Failed to pull releases: %s\n", err)
            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
            return
        }

        artists, err := controller.GetAllArtists(app.DB)
        if err != nil {
            fmt.Fprintf(os.Stderr, "WARN: Failed to pull artists: %s\n", err)
            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
            return
        }

        tracks, err := controller.GetOrphanTracks(app.DB)
        if err != nil {
            fmt.Fprintf(os.Stderr, "WARN: Failed to pull orphan tracks: %s\n", err)
            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
            return
        }

        type MusicData struct {
            Session     *model.Session
            Releases    []*model.Release
            Artists     []*model.Artist
            Tracks      []*model.Track
        }

        err = templates.MusicTemplate.Execute(w, MusicData{
            Session: session,
            Releases: releases,
            Artists: artists,
            Tracks: tracks,
        })
        if err != nil {
            fmt.Fprintf(os.Stderr, "WARN: Failed to render admin index: %s\n", err)
            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
            return
        }
    })
}