// Copyright © 2018 NAME HERE <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package cmd

import (
	"fmt"
	"os"

	"github.com/ory/keto/cmd/client"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

var cfgFile string

var (
	Version   = "dev-master"
	BuildTime = "undefined"
	GitHash   = "undefined"
)

// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
	Use: "keto",
}

var logger = logrus.New()

var cmdHandler = client.NewHandler()

// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
	if err := RootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(-1)
	}
}

func init() {
	logLevel, err := logrus.ParseLevel(os.Getenv("LOG_LEVEL"))
	if err != nil {
		logLevel = logrus.InfoLevel
	}

	logger.Level = logLevel
	cobra.OnInitialize(initConfig)

	// Here you will define your flags and configuration settings.
	// Cobra supports Persistent Flags, which, if defined here,
	// will be global for your application.

	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.keto.yaml)")
	// Cobra also supports local flags, which will only run
	// when this action is called directly.
	RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}

// initConfig reads in config file and ENV variables if set.
func initConfig() {
	if cfgFile != "" { // enable ability to specify config file via flag
		viper.SetConfigFile(cfgFile)
	}

	viper.SetConfigName(".keto") // name of config file (without extension)
	viper.AddConfigPath("$HOME") // adding home directory as first search path
	viper.AutomaticEnv()         // read in environment variables that match

	viper.SetDefault("LOG_LEVEL", "info")
	viper.SetDefault("PORT", "4466")

	// If a config file is found, read it in.
	if err := viper.ReadInConfig(); err == nil {
		fmt.Println("Using config file:", viper.ConfigFileUsed())
	}
}

func clientDefaultFlags(c *cobra.Command) {
	c.PersistentFlags().String("bearer-token", os.Getenv("KETO_BEARER_TOKEN"), "Provide a token to be used if the server is protected by HTTP Bearer Authorization, defaults to environment variable KETO_BEARER_TOKEN.")
	c.PersistentFlags().Bool("fake-tls-termination", false, `fake tls termination by adding "X-Forwarded-Proto: https"" to http headers`)
	c.PersistentFlags().String("endpoint", os.Getenv("KETO_URL"), "The URL of the ORY Keto server, defaults to environment variable KETO_URL.")
}