package main

import (
	"fmt"
	"os/exec"
	"strings"

	"git.milar.in/milarin/gmath"
	"golang.org/x/exp/slices"
)

var CompileConfigs = []*CompileConfig{}

type CompileConfig struct {
	OS       string
	Arch     string
	FileExt  string
	Compress bool
}

func (cfg CompileConfig) String() string {
	return fmt.Sprintf("%s/%s:", cfg.OS, cfg.Arch)
}

func FillCompileConfigs() error {
	cmd := exec.Command("go", "tool", "dist", "list")

	systems := strings.Split(*OS, ",")
	arches := strings.Split(*Arch, ",")

	out, err := cmd.Output()
	if err != nil {
		return err
	}

	lines := strings.Split(strings.TrimSpace(string(out)), "\n")

	for _, line := range lines {
		splits := strings.Split(line, "/")
		os, arch := splits[0], splits[1]

		if (*OS != "" && !slices.Contains(systems, os)) || (*Arch != "" && !slices.Contains(arches, arch)) {
			continue
		}

		ext := ""
		if os == "windows" {
			ext = ".exe"
		}

		cfg := &CompileConfig{
			OS:       os,
			Arch:     arch,
			Compress: true,
			FileExt:  ext,
		}

		MaxConfigStringLength = gmath.Max(MaxConfigStringLength, len(cfg.String()))
		CompileConfigs = append(CompileConfigs, cfg)
	}

	return nil
}