package api

import (
	"net/http"

	"arimelody.me/arimelody.me/admin"
	music "arimelody.me/arimelody.me/music/view"
)

func Handler() http.Handler {
    mux := http.NewServeMux()

    // ARTIST ENDPOINTS

    mux.Handle("/v1/artist/", http.StripPrefix("/v1/artist", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/artist/{id}
            ServeArtist().ServeHTTP(w, r)
        case http.MethodPut:
            // PUT /api/v1/artist/{id} (admin)
            admin.MustAuthorise(UpdateArtist()).ServeHTTP(w, r)
        case http.MethodDelete:
            // DELETE /api/v1/artist/{id} (admin)
            admin.MustAuthorise(DeleteArtist()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    })))
    mux.Handle("/v1/artist", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/artist
            ServeAllArtists().ServeHTTP(w, r)
        case http.MethodPost:
            // POST /api/v1/artist (admin)
            admin.MustAuthorise(CreateArtist()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    }))

    // RELEASE ENDPOINTS

    mux.Handle("/v1/music/", http.StripPrefix("/v1/music", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/music/{id}
            music.ServeRelease().ServeHTTP(w, r)
        case http.MethodPut:
            // PUT /api/v1/music/{id} (admin)
            admin.MustAuthorise(UpdateRelease()).ServeHTTP(w, r)
        case http.MethodDelete:
            // DELETE /api/v1/music/{id} (admin)
            admin.MustAuthorise(DeleteRelease()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    })))
    mux.Handle("/v1/music", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/music
            ServeCatalog().ServeHTTP(w, r)
        case http.MethodPost:
            // POST /api/v1/music (admin)
            admin.MustAuthorise(CreateRelease()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    }))

    // TRACK ENDPOINTS

    mux.Handle("/v1/track/", http.StripPrefix("/v1/track", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/track/{id} (admin)
            admin.MustAuthorise(ServeTrack()).ServeHTTP(w, r)
        case http.MethodPut:
            // PUT /api/v1/track/{id} (admin)
            admin.MustAuthorise(UpdateTrack()).ServeHTTP(w, r)
        case http.MethodDelete:
            // DELETE /api/v1/track/{id} (admin)
            admin.MustAuthorise(DeleteTrack()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    })))
    mux.Handle("/v1/track", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        switch r.Method {
        case http.MethodGet:
            // GET /api/v1/track (admin)
            admin.MustAuthorise(ServeAllTracks()).ServeHTTP(w, r)
        case http.MethodPost:
            // POST /api/v1/track (admin)
            admin.MustAuthorise(CreateTrack()).ServeHTTP(w, r)
        default:
            http.NotFound(w, r)
        }
    }))

    return mux
}