package cmd

import (
	"crypto/subtle"
	"fmt"
	"log"
	"net/http"

	"git.agecem.com/agecem/bottin-agenda/data"
	"git.agecem.com/agecem/bottin-agenda/handlers"
	bottindata "git.agecem.com/agecem/bottin/v6/data"
	"github.com/labstack/echo/v4"
	"github.com/labstack/echo/v4/middleware"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

var (
	apiPort int
	apiKey  string
)

// apiCmd represents the api command
var apiCmd = &cobra.Command{
	Use:   "api",
	Short: "Démarrer le serveur API",
	Args:  cobra.ExactArgs(0),
	Run: func(cmd *cobra.Command, args []string) {
		// TODO migrer à viper.Unmarshal(&models.Config)
		apiKey = viper.GetString("api.key")
		apiPort = viper.GetInt("api.port")

		bottinApiKey := viper.GetString("bottin.api.key")
		bottinApiHost := viper.GetString("bottin.api.host")
		bottinApiProtocol := viper.GetString("bottin.api.protocol")
		bottinApiPort := viper.GetInt("bottin.api.port")

		bottinClient := http.DefaultClient
		defer bottinClient.CloseIdleConnections()

		// Using bottin's API client
		bottinConnection := bottindata.NewApiClient(
			bottinClient,
			bottinApiKey,
			bottinApiHost,
			bottinApiProtocol,
			bottinApiPort,
		)

		e := echo.New()

		// Middlewares

		e.Pre(middleware.AddTrailingSlash())

		if apiKey != "" {
			e.Use(middleware.KeyAuth(func(key string, c echo.Context) (bool, error) {
				return subtle.ConstantTimeCompare([]byte(key), []byte(apiKey)) == 1, nil
			}))
		}

		// Routes

		e.POST("/v3/seed/", handlers.PostSeed)

		e.GET("/v3/health/", handlers.GetHealth)

		e.GET("/v3/transactions/", handlers.GetTransactions)
		e.POST("/v3/transactions/", handlers.PostTransactions)

		// Check bottin is ready

		bottinHealthResponse, err := bottinConnection.GetHealth()
		if err != nil {
			log.Fatalf("[bottin] bottinConnection.GetHealth(): %s", err)
		}

		log.Println("[bottin] ok: ", bottinHealthResponse)

		// Check database is ready

		dataClient, err := data.NewDataClientFromViper()
		if err != nil {
			log.Fatalf("[bottin-agenda db] data.NewDataclientFromViper(): %s", err)
		}
		defer dataClient.DB.Close()

		if err := dataClient.DB.Ping(); err != nil {
			log.Fatalf("[bottin-agenda db] dataClient.DB.Ping() failed: %s", err)
		} else {
			log.Println("[bottin-agenda db] ok")
		}

		if _, err = dataClient.Seed(); err != nil {
			log.Fatalf("[bottin-agenda db] dataClient.Seed() failed: %s", err)
		}

		// Execution

		e.Logger.Fatal(e.Start(fmt.Sprintf(":%d", apiPort)))
	},
}

func init() {
	rootCmd.AddCommand(apiCmd)
}