package main

import (
	"flag"
	"fmt"
	"github.com/dballard/warren/lib/warren"
	"os"
	"text/template"
)

var BuildGitHash string
var BuildGitBranch string
var BuildDate string

var usagePrefix = `
warren is a tool for building, deploying and running multiple versions of a Go server

Usage: 
	warren command [args]
`

var usageTmpl = template.Must(template.New("usage").Parse(`
Commands:{{range .}}
     {{.Name | printf "%-10s"}} {{.Summary}}{{end}}
`))

func usage() {
	fmt.Println(BuildGitBranch, " ", BuildGitHash, " ", BuildDate)
	fmt.Print(usagePrefix)
	warren.PrintCommandUsage()
}

func main() {
	warren.RegisterCommand(buildCmd)
	warren.RegisterCommand(deployCmd)
	warren.RegisterCommand(runCmd)

	flag.Usage = usage
	flag.Parse()

	args := flag.Args()
	if len(args) == 0 || args[0] == "-h" {
		flag.Usage()
		return
	}

	name := args[0]
	var cmd *warren.Command = warren.GetCommand(name)

	if cmd == nil {
		fmt.Printf("error: unknown command %q\n", name)
		flag.Usage()
		os.Exit(1)
	}

	cmd.Exec(args[1:])

}