package view

import (
	"mime"
	"net/http"
	"path/filepath"

	"git.sr.ht/~gabrielgio/img/pkg/database/repository"
	"git.sr.ht/~gabrielgio/img/pkg/ext"
	"git.sr.ht/~gabrielgio/img/pkg/service"
	"git.sr.ht/~gabrielgio/img/templates"
)

type (
	FileSystemView struct {
		fsService service.FileSystemController
		settings  repository.SettingsRepository
	}
	FilePage struct {
		Page      *service.Page
		ShowMode  bool
		ShowOwner bool
	}
)

func NewFileSystemView(
	controller service.FileSystemController,
	settingsRepository repository.SettingsRepository,
) *FileSystemView {
	return &FileSystemView{
		fsService: controller,
		settings:  settingsRepository,
	}
}

func (self *FileSystemView) Index(w http.ResponseWriter, r *http.Request) error {
	var (
		pathValue = r.FormValue("path")
		user      = ext.GetUserFromCtx(r)
	)

	fullpath, err := self.fsService.GetFullpath(r.Context(), user.ID, pathValue)
	if err != nil {
		return err
	}

	isFile, err := self.fsService.IsFile(r.Context(), fullpath)
	if err != nil {
		return err
	}

	if isFile {
		mimetype := mime.TypeByExtension(filepath.Ext(fullpath))
		w.Header().Set("Content-Type", mimetype)
		http.ServeFile(w, r, fullpath)
		return nil
	}

	page, err := self.fsService.GetPage(r.Context(), pathValue, fullpath)
	if err != nil {
		return err
	}

	settings, err := self.settings.Load(r.Context())
	if err != nil {
		return err
	}

	templates.WritePageTemplate(w, &templates.FilePage{
		Page:      page,
		ShowMode:  settings.ShowMode,
		ShowOwner: settings.ShowOwner,
	}, user.IsAdmin)

	return nil
}

func (self *FileSystemView) SetMyselfIn(r *ext.Router) {
	r.GET("/", self.Index)
	r.POST("/", self.Index)
	r.GET("/fs", self.Index)
	r.POST("/fs", self.Index)
}