package main

import (
	"local/m/mchess_server/server"
	"log"
	"net/http"
	"os"

	"github.com/gin-gonic/autotls"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"github.com/gorilla/websocket"
)

var cert_path = "/etc/letsencrypt/live/chess.sw-gross.de/"
var cert_file = cert_path + "fullchain.pem"
var key_file = cert_path + "privkey.pem"

var upgrader = websocket.Upgrader{}

// album represents data about a record album.
type album struct {
	ID     string  `json:"id"`
	Title  string  `json:"title"`
	Artist string  `json:"artist"`
	Price  float64 `json:"price"`
}

// albums slice to seed record album data.
var albums = []album{
	{ID: "1", Title: "Blue Train", Artist: "John Coltrane", Price: 56.99},
	{ID: "2", Title: "Jeru", Artist: "Gerry Mulligan", Price: 17.99},
	{ID: "3", Title: "Sarah Vaughan and Clifford Brown", Artist: "Sarah Vaughan", Price: 39.99},
}

func main() {
	hostname, err := os.Hostname()
	if err != nil {
		log.Fatal(err)
	}

	router := gin.Default()
	router.GET("/api/albums", getAlbums)
	router.GET("/api/albums/:id", getAlbumByID)
	router.POST("/api/albums", postAlbums)

	router.GET("/api/random", playRandomGame)
	http.HandleFunc("/api/ws", server.PlayHandler)

	if hostname == "mbook" {
		log.Println("Starting service WITHOUT TLS")
		log.Fatal(router.Run("localhost:8080"))
	} else {
		log.Fatal(autotls.Run(router, "chess.sw-gross.de"))
	}
}

func playRandomGame(c *gin.Context) {
	player_uuid := uuid.New()
	server.GetLobby().RegisterPlayer(server.NewPlayer(player_uuid))
	c.IndentedJSON(http.StatusOK, player_uuid)
}

// getAlbums responds with the list of all albums as JSON.
func getAlbums(c *gin.Context) {
	c.IndentedJSON(http.StatusOK, albums)
}

// postAlbums adds an album from JSON received in the request body.
func postAlbums(c *gin.Context) {
	var newAlbum album

	// Call BindJSON to bind the received JSON to
	// newAlbum.
	if err := c.BindJSON(&newAlbum); err != nil {
		return
	}

	// Add the new album to the slice.
	albums = append(albums, newAlbum)
	c.IndentedJSON(http.StatusCreated, newAlbum)
}

// getAlbumByID locates the album whose ID value matches the id
// parameter sent by the client, then returns that album as a response.
func getAlbumByID(c *gin.Context) {
	id := c.Param("id")

	// Loop over the list of albums, looking for
	// an album whose ID value matches the parameter.
	for _, a := range albums {
		if a.ID == id {
			c.IndentedJSON(http.StatusOK, a)
			return
		}
	}
	c.IndentedJSON(http.StatusNotFound, gin.H{"message": "album not found"})
}