package oppen.gem.ui.bookmarks

import android.content.Context
import android.os.Handler
import android.os.Looper
import android.view.View
import androidx.appcompat.app.AppCompatDialog
import androidx.appcompat.widget.PopupMenu
import androidx.recyclerview.widget.LinearLayoutManager
import kotlinx.android.synthetic.main.dialog_bookmarks.view.*
import oppen.gem.R
import oppen.gem.io.bookmarks.Bookmark
import oppen.gem.io.bookmarks.BookmarksDatasource


class BookmarksDialog(
    context: Context,
    private val bookmarkDatasource: BookmarksDatasource,
    onBookmark: (bookmark: Bookmark) -> Unit): AppCompatDialog(context, R.style.FSDialog) {

    var bookmarksAdapter: BookmarksAdapter

    init {
        val view = View.inflate(context, R.layout.dialog_bookmarks, null)

        setContentView(view)

        view.bookmarks_toolbar.setNavigationIcon(R.drawable.vector_close)
        view.bookmarks_toolbar.setNavigationOnClickListener {
            dismiss()
        }

        //None as yet
        view.bookmarks_toolbar.inflateMenu(R.menu.add_bookmarks)
        view.bookmarks_toolbar.setOnMenuItemClickListener {menuItem ->
            true
        }

        view.bookmarks_recycler.layoutManager = LinearLayoutManager(context)

        bookmarksAdapter = BookmarksAdapter({ bookmark ->
            //onBookmark
            onBookmark(bookmark)
            dismiss()

        }){ view, bookmark, isFirst, isLast ->
            //onOverflow
            val bookmarkOverflow = PopupMenu(context, view)

            bookmarkOverflow.inflate(R.menu.menu_bookmark)

            if(isFirst) bookmarkOverflow.menu.removeItem(R.id.menu_bookmark_move_up)
            if(isLast) bookmarkOverflow.menu.removeItem(R.id.menu_bookmark_move_down)

            bookmarkOverflow.setOnMenuItemClickListener { menuItem ->
                when(menuItem.itemId){
                    R.id.menu_bookmark_edit -> {}
                    R.id.menu_bookmark_delete -> {}
                    R.id.menu_bookmark_move_up -> moveUp(bookmark)
                    R.id.menu_bookmark_move_down-> moveDown(bookmark)
                }
                true
            }

            bookmarkOverflow.show()
        }

        view.bookmarks_recycler.adapter = bookmarksAdapter

        bookmarkDatasource.get { bookmarks ->

            Handler(Looper.getMainLooper()).post {
                bookmarksAdapter.update(bookmarks)
            }
        }
    }

    private fun moveUp(bookmark: Bookmark){
        bookmarkDatasource.moveUp(bookmark){
            bookmarkDatasource.get { bookmarks ->
                Handler(Looper.getMainLooper()).post {
                    bookmarksAdapter.update(bookmarks)
                }
            }
        }
    }

    private fun moveDown(bookmark: Bookmark){
        bookmarkDatasource.moveDown(bookmark){
            bookmarkDatasource.get { bookmarks ->
                Handler(Looper.getMainLooper()).post {
                    bookmarksAdapter.update(bookmarks)
                }
            }
        }
    }
}