package buildqueue

import (
	"brunel/domain"
	"fmt"
	"strings"

	"errors"

	"github.com/alphadose/haxmap"
)

var queue = haxmap.New[string, domain.BuildQueueItem]()

func getQueueKey(name string, buildType domain.BuildType) string {
	return fmt.Sprintf("%s_%s", name, buildType)
}

func GetQueue() *haxmap.Map[string, domain.BuildQueueItem] {
	return queue
}

func GetCounts() domain.BuildQueueCount {
	count := domain.BuildQueueCount{
		Queued:   0,
		Building: 0,
	}
	queue.ForEach(func(k string, v domain.BuildQueueItem) bool {
		if v.Status == domain.Queued {
			count.Queued++
		} else if v.Status == domain.Building {
			count.Building++
		}
		return true
	})
	return count
}

func Add(buildItem domain.BuildQueueItem) error {
	if strings.Contains(buildItem.BuildVersion, "+b") {
		buildItem.BuildVersion = strings.Split(buildItem.BuildVersion, "+b")[0]
	}
	key := getQueueKey(buildItem.Source.Name, buildItem.Type)
	if _, ok := queue.Get(key); ok {
		return errors.New("package already in queue")
	}

	queue.Set(key, buildItem)
	return nil
}

func Get(name string, buildType domain.BuildType) (domain.BuildQueueItem, bool) {
	key := getQueueKey(name, buildType)
	item, ok := queue.Get(key)
	return item, ok
}

func Remove(name string, buildType domain.BuildType) error {
	key := getQueueKey(name, buildType)
	_, ok := queue.Get(key)
	if !ok {
		return errors.New("package not in queue")
	}
	queue.Del(key)
	return nil
}

func Update(buildItem domain.BuildQueueItem) error {
	key := getQueueKey(buildItem.Source.Name, buildItem.Type)
	item, ok := queue.Get(key)
	if !ok {
		return errors.New("package not in queue")
	}
	if item.Status == domain.Building {
		return errors.New("package is already building")
	}
	queue.Set(key, buildItem)
	return nil
}

func ProcessNext() error {
	var item *domain.BuildQueueItem
	queue.ForEach(func(k string, v domain.BuildQueueItem) bool {
		if v.Status == domain.Queued {
			item = &v
			return false
		}
		return true
	})
	if item == nil {
		return nil
	}

	err := UpdateBuildFile(*item)
	if err != nil {
		return err
	}
	item.Status = domain.Building
	err = Update(*item)
	return err
}