package view

import (
	"encoding/json"
	"fmt"
	"net/http"

	"arimelody.me/arimelody.me/admin"
	"arimelody.me/arimelody.me/global"
	"arimelody.me/arimelody.me/music/model"
	db "arimelody.me/arimelody.me/music/controller"
	"arimelody.me/arimelody.me/templates"
)

// HTTP HANDLERS

func ServeRelease(release model.Release) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // only allow authorised users to view hidden releases
        authorised := admin.GetSession(r) != nil
        if !authorised && !release.Visible {
            http.NotFound(w, r)
            return
        }

        fullRelease := &model.FullRelease{
            Release: &release,
        }

        if authorised || release.IsReleased() {
            fullerRelease, err := db.GetFullRelease(global.DB, &release)
            if err != nil {
                fmt.Printf("FATAL: Failed to pull full release data for %s: %s\n", release.ID, err)
                http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
                return
            }
            fullRelease = fullerRelease
        }

		w.Header().Add("Content-Type", "application/json")
        err := json.NewEncoder(w).Encode(fullRelease)
		if err != nil {
			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
			return
		}
	})
}

func ServeGateway(release model.Release) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // only allow authorised users to view hidden releases
        authorised := admin.GetSession(r) != nil
        if !authorised && !release.Visible {
            http.NotFound(w, r)
            return
        }

        fullRelease := &model.FullRelease{
            Release: &release,
        }

        if authorised || release.IsReleased() {
            fullerRelease, err := db.GetFullRelease(global.DB, &release)
            if err != nil {
                fmt.Printf("FATAL: Failed to pull full release data for %s: %s\n", release.ID, err)
                http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
                return
            }
            fullRelease = fullerRelease
        }

        err := templates.Pages["music-gateway"].Execute(w, fullRelease)

        if err != nil {
            fmt.Printf("Error rendering music gateway for %s: %s\n", release.ID, err)
            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
            return
        }
    })
}