package main

import (
	"fmt"
	"git.xdrm.io/go/nix-amer/internal/buildfile"
	"git.xdrm.io/go/nix-amer/internal/clifmt"
	"os"
	"time"
)

func main() {

	start := time.Now()

	// Manage arguments
	ctx, bf, dryRun, err := GetArgs()
	if err != nil {
		fmt.Printf("%s\n", err)
		return
	}

	// 1. get buildfile reader
	bfreader, err := os.Open(bf)
	if err != nil {
		fmt.Printf("cannot open buildfile | %s\n", err)
		return
	}
	defer bfreader.Close()

	// 2. parse buildfile
	instructions, err := buildfile.NewReader(ctx, bfreader)
	if err != nil {
		if _, ok := err.(buildfile.LineError); ok {
			fmt.Printf("line error\n")
			fmt.Printf("%s%s\n", bf, err.Error())
		} else {
			fmt.Printf("%s\n", clifmt.Warn(err.Error()))
		}
		return
	}

	clifmt.Align("build file")
	fmt.Printf("%s\n", clifmt.Color(32, "valid"))

	// stop here if dry run

	// 3. Execute
	fmt.Printf("------\n")
	err = instructions.Execute(dryRun)
	if err != nil {
		fmt.Printf("%s\n", clifmt.Warn(err.Error()))
		return
	}
	fmt.Printf("------\n")
	clifmt.Align("finished in")
	fmt.Printf("%ss\n", clifmt.Color(32, fmt.Sprintf("%.2f", time.Now().Sub(start).Seconds())))

	if dryRun {
		fmt.Printf("\n%s %s\n", clifmt.Info("updated configurations are inside"), clifmt.Color(32, "/tmp/dry-run"))
	}

}