package net.shadowfacts.cacao.view

import net.minecraft.text.LiteralText
import net.minecraft.text.Text
import net.shadowfacts.cacao.window.Window
import net.shadowfacts.cacao.geometry.Axis
import net.shadowfacts.cacao.util.Color
import net.shadowfacts.cacao.util.texture.NinePatchTexture
import net.shadowfacts.cacao.util.texture.Texture
import net.shadowfacts.cacao.view.button.Button
import net.shadowfacts.kiwidsl.dsl

/**
 * @author shadowfacts
 */
class DialogView(
	val title: Text,
	val message: Text,
	val buttonTypes: Array<ButtonType>,
	val iconTexture: Texture?,
	val buttonCallback: (ButtonType, Window) -> Unit
): View() {

	interface ButtonType {
		val localizedName: Text
	}

	enum class DefaultButtonType: ButtonType {
		CANCEL, CONFIRM, OK, CLOSE;

		override val localizedName: Text
			get() = LiteralText(name.lowercase().replaceFirstChar(Char::titlecase)) // todo: actually localize me
	}

	private lateinit var background: NinePatchView
	private lateinit var hStack: StackView
	private var iconView: TextureView? = null
	private lateinit var vStack: StackView
	private lateinit var messageLabel: Label
	private var buttonContainer: View? = null
	private var buttonStack: StackView? = null

	override fun wasAdded() {
		background = addSubview(NinePatchView(NinePatchTexture.PANEL_BG).apply { zIndex = -1.0 })

		hStack = addSubview(StackView(Axis.HORIZONTAL, StackView.Distribution.LEADING, spacing = 8.0))

		if (iconTexture != null) {
			iconView = hStack.addArrangedSubview(TextureView(iconTexture))
		}

		vStack = hStack.addArrangedSubview(StackView(Axis.VERTICAL, spacing = 4.0))

		vStack.addArrangedSubview(Label(title, shadow = false).apply {
			textColor = Color(0x404040)
		})
		messageLabel = vStack.addArrangedSubview(Label(message, shadow = false).apply {
			textColor = Color(0x404040)
		})

		if (buttonTypes.isNotEmpty()) {
			buttonContainer = vStack.addArrangedSubview(View())
			buttonStack = buttonContainer!!.addSubview(StackView(Axis.HORIZONTAL))
			for (type in buttonTypes) {
				buttonStack!!.addArrangedSubview(Button(Label(type.localizedName)).apply {
					handler = {
						this@DialogView.buttonCallback(type, this@DialogView.window!!)
					}
				})
			}
		}

		super.wasAdded()
	}

	override fun createInternalConstraints() {
		super.createInternalConstraints()

		solver.dsl {
			centerXAnchor equalTo window!!.centerXAnchor
			centerYAnchor equalTo window!!.centerYAnchor

			widthAnchor greaterThanOrEqualTo 175

			background.leftAnchor equalTo leftAnchor - 8
			background.rightAnchor equalTo rightAnchor + 8
			background.topAnchor equalTo topAnchor - 8
			background.bottomAnchor equalTo bottomAnchor + 8

			hStack.leftAnchor equalTo leftAnchor
			hStack.rightAnchor equalTo rightAnchor
			hStack.topAnchor equalTo topAnchor
			hStack.bottomAnchor equalTo bottomAnchor

			if (iconView != null) {
				hStack.bottomAnchor greaterThanOrEqualTo iconView!!.bottomAnchor
			}
			hStack.bottomAnchor greaterThanOrEqualTo vStack.bottomAnchor

			if (iconView != null) {
				iconView!!.widthAnchor equalTo 30
				iconView!!.heightAnchor equalTo 30
			}

			messageLabel.heightAnchor greaterThanOrEqualTo 50

			if (buttonContainer != null) {
				buttonStack!!.heightAnchor equalTo buttonContainer!!.heightAnchor
				buttonStack!!.centerYAnchor equalTo buttonContainer!!.centerYAnchor

				buttonStack!!.rightAnchor equalTo buttonContainer!!.rightAnchor
			}
		}
	}

}