/*
 * SPDX-License-Identifier: MPL-2.0
 * Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
 */

package emu.skyline.input.onscreen

import android.os.Build
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.WindowInsets
import android.view.WindowInsetsController
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import com.google.android.material.dialog.MaterialAlertDialogBuilder
import com.google.android.material.floatingactionbutton.FloatingActionButton
import emu.skyline.R
import emu.skyline.utils.Settings
import kotlinx.android.synthetic.main.on_screen_edit_activity.*

class OnScreenEditActivity : AppCompatActivity() {
    private var fullEditVisible = true
    private var editMode = false

    private val closeAction : () -> Unit = {
        if (editMode) {
            toggleFabVisibility(true)
            on_screen_controller_view.setEditMode(false)
            editMode = false
        } else {
            fullEditVisible = !fullEditVisible
            toggleFabVisibility(fullEditVisible)
            fabMapping[R.drawable.ic_close]!!.animate().rotation(if (fullEditVisible) 0f else 45f)
        }
    }

    private fun toggleFabVisibility(visible : Boolean) {
        actions.forEach {
            if (it.first != R.drawable.ic_close)
                if (visible) fabMapping[it.first]!!.show()
                else fabMapping[it.first]!!.hide()
        }
    }

    private val editAction = {
        editMode = true
        on_screen_controller_view.setEditMode(true)
        toggleFabVisibility(false)
    }

    private val toggleAction : () -> Unit = {
        val buttonProps = on_screen_controller_view.getButtonProps()
        val checkArray = buttonProps.map { it.second }.toBooleanArray()

        MaterialAlertDialogBuilder(this)
                .setMultiChoiceItems(buttonProps.map {
                    val longText = getString(it.first.long!!)
                    if (it.first.short == longText) longText else "$longText: ${it.first.short}"
                }.toTypedArray(), checkArray) { _, which, isChecked ->
                    checkArray[which] = isChecked
                }.setPositiveButton(R.string.confirm) { _, _ ->
                    buttonProps.forEachIndexed { index, pair ->
                        if (checkArray[index] != pair.second)
                            on_screen_controller_view.setButtonEnabled(pair.first, checkArray[index])
                    }
                }.setNegativeButton(R.string.cancel, null)
                .setOnDismissListener { fullScreen() }
                .show()
    }

    private val actions : List<Pair<Int, () -> Unit>> = listOf(
            Pair(R.drawable.ic_restore, { on_screen_controller_view.resetControls() }),
            Pair(R.drawable.ic_toggle, toggleAction),
            Pair(R.drawable.ic_edit, editAction),
            Pair(R.drawable.ic_zoom_out, { on_screen_controller_view.decreaseScale() }),
            Pair(R.drawable.ic_zoom_in, { on_screen_controller_view.increaseScale() }),
            Pair(R.drawable.ic_close, closeAction)
    )

    private val fabMapping = mutableMapOf<Int, FloatingActionButton>()

    override fun onCreate(savedInstanceState : Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.on_screen_edit_activity)
        on_screen_controller_view.recenterSticks = Settings(this).onScreenControlRecenterSticks

        actions.forEach { pair ->
            fab_parent.addView(LayoutInflater.from(this).inflate(R.layout.on_screen_edit_mini_fab, fab_parent, false).apply {
                (this as FloatingActionButton).setImageDrawable(ContextCompat.getDrawable(context, pair.first))
                setOnClickListener { pair.second.invoke() }
                fabMapping[pair.first] = this
            })
        }
    }

    override fun onResume() {
        super.onResume()
        fullScreen()
    }

    private fun fullScreen() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            window.insetsController?.hide(WindowInsets.Type.navigationBars() or WindowInsets.Type.systemBars() or WindowInsets.Type.systemGestures() or WindowInsets.Type.statusBars())
            window.insetsController?.systemBarsBehavior = WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
        } else {
            @Suppress("DEPRECATION")
            window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                    or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    or View.SYSTEM_UI_FLAG_FULLSCREEN)
        }
    }
}