package main

import (
	"github.com/spf13/viper"
	"github.com/docopt/docopt.go"
	"log"
	"io/ioutil"
	"sour.is/x/httpsrv"
	"bytes"
	"fmt"
)

var APP_NAME string = "Paste API"
var APP_USAGE string = `Paste API

Usage:
  mercury [-v] serve [--listen=<ListenAddress>]

Options:
  -v                                             Log to console.
  -l <ListenAddress>, --listen=<ListenAddress>   Address to listen on.
  -c <ConfigFile>, --conf=<ConfigFile>           Config file name. [Default: config.toml]

Config:
  The config file is read from the following locations:
    - /etc/paste/
    - ~/.local/paste/
    - Working Directory
`

var args map[string]interface{}

func init() {
	var err error

	if args, err = docopt.Parse(APP_USAGE, nil, true, APP_NAME, false); err != nil {
		log.Fatal(err)
	}

	if args["-v"] == false {
		log.SetOutput(ioutil.Discard)
	}

	viper.SetConfigName("config")
	viper.AddConfigPath("/etc/reg42/")
	viper.AddConfigPath("$HOME/.local/reg42/")
	viper.AddConfigPath(".")

	viper.SetConfigType("toml")
	viper.ReadConfig(bytes.NewBuffer(defaultConfig))

	err = viper.MergeInConfig()
	if err != nil { // Handle errors reading the config file
		panic(fmt.Errorf("Fatal error config file: %s \n", err))
	}

	log.Print("Read config from: ", viper.ConfigFileUsed())


	if args["serve"] == true {

		if args["--listen"] != nil {
			viper.Set("listen", args["--listen"].(string))
		}

		httpsrv.Config()
	}
}

var defaultConfig []byte = []byte(`
listen   = ":9010"
fileserver = "/public/:/"

[module.paste]
random = "4096"
store = "data/"
`)