package buildx

import (
	"git.tek.govt.hu/dowerx/buildx-manager/config"
	"golang.org/x/exp/rand"
)

var uniqueTags map[string][]string = make(map[string][]string)
var groupTags map[string][]string = make(map[string][]string)
var runes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")

func uid() string {
	for {
		id := make([]rune, 16)
		for i := range id {
			id[i] = runes[rand.Intn(len(runes))]
		}

		_, exists := uniqueTags[string(id)]
		if !exists {
			return string(id)
		}
	}
}

func addUniqueTag(id string, tag string) {
	uniqueTags[id] = append(uniqueTags[id], tag)
}

func addGroupTag(id string, tag string) {
	groupTags[id] = append(groupTags[id], tag)
}

func TagsToCommands(registries []string) []Command {
	cfg := config.GetConfig()

	commands := make([]Command, 0)

	for _, registry := range registries {

		// unique tags
		for id, tags := range uniqueTags {
			for _, tag := range tags {
				cmd := Command{Program: cfg.DockerExecutable, Arguments: []string{"buildx", "imagetools", "create", "-t", registry + "/" + tag, id}}
				commands = append(commands, cmd)
			}
		}

		// group tags
		for newTag, tags := range groupTags {
			cmd := Command{Program: cfg.DockerExecutable, Arguments: []string{"buildx", "imagetools", "create", "-t", registry + "/" + newTag}}

			for _, tag := range tags {
				cmd.Arguments = append(cmd.Arguments, registry+"/"+tag)
			}

			commands = append(commands, cmd)
		}
	}

	return commands
}