package service

import (
	"net/http"
	"strings"

	"github.com/leonelquinteros/gotext"
	"github.com/libtnb/chix"

	"github.com/acepanel/panel/internal/biz"
	"github.com/acepanel/panel/internal/http/request"
	"github.com/acepanel/panel/pkg/types"
)

type AppService struct {
	t           *gotext.Locale
	appRepo     biz.AppRepo
	cacheRepo   biz.CacheRepo
	settingRepo biz.SettingRepo
}

func NewAppService(t *gotext.Locale, app biz.AppRepo, cache biz.CacheRepo, setting biz.SettingRepo) *AppService {
	return &AppService{
		t:           t,
		appRepo:     app,
		cacheRepo:   cache,
		settingRepo: setting,
	}
}

func (s *AppService) List(w http.ResponseWriter, r *http.Request) {
	all := s.appRepo.All()
	installedApps, err := s.appRepo.Installed()
	if err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}
	installedAppMap := make(map[string]*biz.App)

	for _, p := range installedApps {
		installedAppMap[p.Slug] = p
	}

	var apps []types.AppCenter
	for _, item := range all {
		installed, installedChannel, installedVersion, updateExist, show := false, "", "", false, false
		if _, ok := installedAppMap[item.Slug]; ok {
			installed = true
			installedChannel = installedAppMap[item.Slug].Channel
			installedVersion = installedAppMap[item.Slug].Version
			updateExist = s.appRepo.UpdateExist(item.Slug)
			show = installedAppMap[item.Slug].Show
		}

		app := types.AppCenter{
			Icon:             item.Icon,
			Name:             item.Name,
			Description:      item.Description,
			Slug:             item.Slug,
			Installed:        installed,
			InstalledChannel: installedChannel,
			InstalledVersion: installedVersion,
			UpdateExist:      updateExist,
			Show:             show,
		}

		for _, c := range item.Channels {
			app.Channels = append(app.Channels, struct {
				Slug    string `json:"slug"`
				Name    string `json:"name"`
				Panel   string `json:"panel"`
				Version string `json:"version"`
				Log     string `json:"log"`
			}{
				Slug:    c.Slug,
				Name:    c.Name,
				Panel:   c.Panel,
				Version: c.Version,
				Log:     c.Log,
			})
		}

		apps = append(apps, app)
	}

	paged, total := Paginate(r, apps)

	Success(w, chix.M{
		"total": total,
		"items": paged,
	})
}

func (s *AppService) Install(w http.ResponseWriter, r *http.Request) {
	req, err := Bind[request.App](r)
	if err != nil {
		Error(w, http.StatusUnprocessableEntity, "%v", err)
		return
	}

	if err = s.appRepo.Install(req.Channel, req.Slug); err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}

	Success(w, nil)
}

func (s *AppService) Uninstall(w http.ResponseWriter, r *http.Request) {
	req, err := Bind[request.AppSlug](r)
	if err != nil {
		Error(w, http.StatusUnprocessableEntity, "%v", err)
		return
	}

	if err = s.appRepo.UnInstall(req.Slug); err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}

	Success(w, nil)
}

func (s *AppService) Update(w http.ResponseWriter, r *http.Request) {
	req, err := Bind[request.AppSlug](r)
	if err != nil {
		Error(w, http.StatusUnprocessableEntity, "%v", err)
		return
	}

	if err = s.appRepo.Update(req.Slug); err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}

	Success(w, nil)
}

func (s *AppService) UpdateShow(w http.ResponseWriter, r *http.Request) {
	req, err := Bind[request.AppUpdateShow](r)
	if err != nil {
		Error(w, http.StatusUnprocessableEntity, "%v", err)
		return
	}

	if err = s.appRepo.UpdateShow(req.Slug, req.Show); err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}

	Success(w, nil)
}

func (s *AppService) IsInstalled(w http.ResponseWriter, r *http.Request) {
	req, err := Bind[request.AppSlugs](r)
	if err != nil {
		Error(w, http.StatusUnprocessableEntity, "%v", err)
		return
	}

	flag := false
	slugs := strings.Split(req.Slugs, ",")
	for _, item := range slugs {
		installed, err := s.appRepo.IsInstalled(item)
		if err != nil {
			Error(w, http.StatusInternalServerError, "%v", err)
			return
		}
		if installed {
			flag = true
			break
		}
	}

	Success(w, flag)
}

func (s *AppService) UpdateCache(w http.ResponseWriter, r *http.Request) {
	if offline, _ := s.settingRepo.GetBool(biz.SettingKeyOfflineMode); offline {
		Error(w, http.StatusForbidden, s.t.Get("Unable to update app list cache in offline mode"))
		return
	}

	if err := s.cacheRepo.UpdateApps(); err != nil {
		Error(w, http.StatusInternalServerError, "%v", err)
		return
	}

	Success(w, nil)
}