//
// Tencent is pleased to support the open source community by making
// Hippy available.
//
// Copyright (C) 2022 THL A29 Limited, a Tencent company.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

import 'package:flutter/material.dart';
import 'package:voltron_renderer/util/devtools_util.dart';

import '../voltron_renderer.dart';

abstract class BaseViewController<T extends RenderViewModel>
    extends VoltronViewController<T, RenderNode> {
  @override
  RenderNode createRenderNode(
    int id,
    VoltronMap? props,
    String name,
    RenderTree tree,
    ControllerManager controllerManager,
    bool lazy,
  ) {
    return RenderNode(
      id,
      name,
      tree,
      controllerManager,
      props,
    );
  }
}

abstract class VoltronViewController<T extends RenderViewModel, R extends RenderNode>
    implements ControllerMethodPropConsumer<T> {
  @override
  String get name;

  static const String kMeasureInWindow = "measureInWindow";
  static const String kGETBoundingClientRect = "getBoundingClientRect";
  static const String kKeyRelToContainer = "relToContainer";

  @override
  ControllerMethodPropProvider generateProvider() {
    final provider = ControllerMethodPropProvider();
    provider.pushAll(_baseRegisteredMethodProp);
    provider.pushAll(extendRegisteredMethodProp);
    return provider;
  }

  Map<String, ControllerMethodProp> get _baseRegisteredMethodProp => {
        NodeProps.kDisplay: ControllerMethodProp(setDisplay, ''),
        NodeProps.kOverflow:
            ControllerMethodProp(setOverflow, enumValueToString(ContainOverflow.visible)),
        NodeProps.kTransform: ControllerMethodProp(setTransform, null),
        NodeProps.kTransformOrigin: ControllerMethodProp(setTransformOrigin, null),
        NodeProps.kPropAccessibilityLabel: ControllerMethodProp(setAccessibilityLabel, ""),
        NodeProps.kBackgroundColor:
            ControllerMethodProp(setBackgroundColor, Colors.transparent.value),
        NodeProps.kBackgroundImage: ControllerMethodProp(setBackgroundImage, null),
        NodeProps.kBackgroundSize:
            ControllerMethodProp(setBackgroundImageSize, enumValueToString(ImageResizeMode.auto)),
        NodeProps.kBackgroundPositionX: ControllerMethodProp(setBackgroundImagePositionX, ''),
        NodeProps.kBackgroundPositionY: ControllerMethodProp(setBackgroundImagePositionY, ''),
        NodeProps.kBackgroundRepeat: ControllerMethodProp(setBackgroundImageRepeat, ''),
        NodeProps.kOpacity: ControllerMethodProp(setOpacity, 1.0),
        NodeProps.kNextFocusDownId: ControllerMethodProp(setNextFocusDownId, 0),
        NodeProps.kNextFocusUpId: ControllerMethodProp(setNextFocusUpId, 0),
        NodeProps.kNextFocusLeftId: ControllerMethodProp(setNextFocusLeftId, 0),
        NodeProps.kNextFocusRightId: ControllerMethodProp(setNextFocusRightId, 0),
        NodeProps.kBorderRadius: ControllerMethodProp(setBorderRadius, 0.0),
        NodeProps.kBorderTopLeftRadius: ControllerMethodProp(setTopLeftBorderRadius, 0.0),
        NodeProps.kBorderTopRightRadius: ControllerMethodProp(setTopRightBorderRadius, 0.0),
        NodeProps.kBorderBottomRightRadius: ControllerMethodProp(setBottomRightBorderRadius, 0.0),
        NodeProps.kBorderBottomLeftRadius: ControllerMethodProp(setBottomLeftBorderRadius, 0.0),
        NodeProps.kBorderWidth: ControllerMethodProp(setBorderWidth, 0.0),
        NodeProps.kBorderLeftWidth: ControllerMethodProp(setLeftBorderWidth, 0.0),
        NodeProps.kBorderTopWidth: ControllerMethodProp(setTopBorderWidth, 0.0),
        NodeProps.kBorderRightWidth: ControllerMethodProp(setRightBorderWidth, 0.0),
        NodeProps.kBorderBottomWidth: ControllerMethodProp(setBottomBorderWidth, 0.0),
        NodeProps.kBorderColor: ControllerMethodProp(setBorderColor, Colors.transparent.value),
        NodeProps.kBorderLeftColor:
            ControllerMethodProp(setBorderLeftColor, Colors.transparent.value),
        NodeProps.kBorderTopColor:
            ControllerMethodProp(setBorderTopColor, Colors.transparent.value),
        NodeProps.kBorderRightColor:
            ControllerMethodProp(setBorderRightColor, Colors.transparent.value),
        NodeProps.kBorderBottomColor:
            ControllerMethodProp(setBorderBottomColor, Colors.transparent.value),
        NodeProps.kBorderStyle: ControllerMethodProp(setBorderStyle, ''),
        NodeProps.kBoxShadow: ControllerMethodProp(setBoxShadow, null),
        NodeProps.kFocusable: ControllerMethodProp(setFocusable, false),
        NodeProps.kRequestFocus: ControllerMethodProp(requestFocus, false),
        NodeProps.kZIndex: ControllerMethodProp(setZIndex, 0),
        NodeProps.linearGradient: ControllerMethodProp(setLinearGradient, null),
        NodeProps.shadowOffset: ControllerMethodProp(setShadowOffset, null),
        NodeProps.shadowOffsetX: ControllerMethodProp(setShadowOffsetX, 0.0),
        NodeProps.shadowOffsetY: ControllerMethodProp(setShadowOffsetY, 0.0),
        NodeProps.shadowOpacity: ControllerMethodProp(setShadowOpacity, 0.0),
        NodeProps.shadowRadius: ControllerMethodProp(setShadowRadius, 0.0),
        NodeProps.shadowSpread: ControllerMethodProp(setShadowSpread, 0.0),
        NodeProps.shadowColor: ControllerMethodProp(setShadowColor, Colors.transparent.value),
      };

  Map<String, ControllerMethodProp> get extendRegisteredMethodProp;

  @ControllerProps(NodeProps.kDisplay)
  void setDisplay(T viewModel, String display) {
    viewModel.display = display;
  }

  @ControllerProps(NodeProps.kTransform)
  void setTransform(T viewModel, VoltronArray? transformArray) {
    final transform = TransformUtil.getTransformMatrix4(transformArray);
    viewModel.transform = transform;
  }

  @ControllerProps(NodeProps.kTransformOrigin)
  void setTransformOrigin(T viewModel, VoltronMap? transformOriginMap) {
    final transformOrigin = TransformOrigin(transformOriginMap);
    viewModel.transformOrigin = transformOrigin;
  }

  /// zIndex
  @ControllerProps(NodeProps.kZIndex)
  void setZIndex(T viewModel, int zIndex) {
    viewModel.zIndex = zIndex;
  }

  @ControllerProps(NodeProps.linearGradient)
  void setLinearGradient(T viewModel, VoltronMap? value) {
    if (value != null) {
      viewModel.linearGradient = value;
    }
  }

  @ControllerProps(NodeProps.shadowOffset)
  void setShadowOffset(T viewModel, VoltronMap? shadowOffset) {
    if (shadowOffset != null) {
      viewModel.shadowOffsetX = shadowOffset.get<double>('x') ?? 0.0;
      viewModel.shadowOffsetY = shadowOffset.get<double>('y') ?? 0.0;
    }
  }

  @ControllerProps(NodeProps.shadowOffsetX)
  void setShadowOffsetX(T viewModel, double v) {
    viewModel.shadowOffsetX = v;
  }

  @ControllerProps(NodeProps.shadowOffsetY)
  void setShadowOffsetY(T viewModel, double v) {
    viewModel.shadowOffsetY = v;
  }

  @ControllerProps(NodeProps.shadowOpacity)
  void setShadowOpacity(T viewModel, double v) {
    viewModel.shadowOpacity = v;
  }

  @ControllerProps(NodeProps.shadowRadius)
  void setShadowRadius(T viewModel, double v) {
    viewModel.shadowRadius = v;
  }

  @ControllerProps(NodeProps.shadowSpread)
  void setShadowSpread(T viewModel, double v) {
    viewModel.shadowSpread = v;
  }

  @ControllerProps(NodeProps.shadowColor)
  void setShadowColor(T viewModel, int v) {
    viewModel.shadowColor = v;
  }

  @ControllerProps(NodeProps.kPropAccessibilityLabel)
  void setAccessibilityLabel(T viewModel, String? accessibilityLabel) {
    viewModel.accessibilityLabel = accessibilityLabel ?? "";
  }

  @ControllerProps(NodeProps.kBackgroundColor)
  void setBackgroundColor(T viewModel, Object? backgroundColor) {
    if (backgroundColor is int) {
      final color = Color(backgroundColor);
      viewModel.backgroundColor = color;
    }
  }

  @ControllerProps(NodeProps.kOverflow)
  void setOverflow(T viewModel, String overflow) {
    viewModel.overflow = overflow;
  }

  @ControllerProps(NodeProps.kBackgroundImage)
  void setBackgroundImage(T viewModel, Object? data) {
    if (data is String) {
      viewModel.backgroundImage = viewModel.context.convertRelativePath(viewModel.rootId, data);
    } else {
      viewModel.backgroundImage = data;
    }
  }

  @ControllerProps(NodeProps.kBackgroundSize)
  void setBackgroundImageSize(T viewModel, String resizeModeValue) {
    viewModel.backgroundImgSize = resizeModeValue;
  }

  @ControllerProps(NodeProps.kBackgroundPositionX)
  void setBackgroundImagePositionX(T viewModel, String positionX) {
    viewModel.backgroundPositionX = positionX;
  }

  @ControllerProps(NodeProps.kBackgroundPositionY)
  void setBackgroundImagePositionY(T viewModel, String positionY) {
    viewModel.backgroundPositionY = positionY;
  }

  @ControllerProps(NodeProps.kBackgroundRepeat)
  void setBackgroundImageRepeat(T viewModel, String value) {
    viewModel.backgroundImgRepeat = value;
  }

  @ControllerProps(NodeProps.kOpacity)
  void setOpacity(T viewModel, double opacity) {
    viewModel.opacity = opacity;
  }

  @ControllerProps(NodeProps.kBorderRadius)
  void setBorderRadius(T viewModel, double borderRadius) {
    viewModel.borderRadius = borderRadius;
  }

  @ControllerProps(NodeProps.kBorderTopLeftRadius)
  void setTopLeftBorderRadius(T viewModel, double topLeftBorderRadius) {
    viewModel.topLeftBorderRadius = topLeftBorderRadius;
  }

  @ControllerProps(NodeProps.kBorderTopRightRadius)
  void setTopRightBorderRadius(T viewModel, double topRightBorderRadius) {
    viewModel.topRightBorderRadius = topRightBorderRadius;
  }

  @ControllerProps(NodeProps.kBorderBottomRightRadius)
  void setBottomRightBorderRadius(T viewModel, double bottomRightBorderRadius) {
    viewModel.bottomRightBorderRadius = bottomRightBorderRadius;
  }

  @ControllerProps(NodeProps.kBorderBottomLeftRadius)
  void setBottomLeftBorderRadius(T viewModel, double bottomLeftBorderRadius) {
    viewModel.bottomLeftBorderRadius = bottomLeftBorderRadius;
  }

  @ControllerProps(NodeProps.kBorderWidth)
  void setBorderWidth(T viewModel, double borderWidth) {
    viewModel.borderWidth = borderWidth;
  }

  @ControllerProps(NodeProps.kNextFocusDownId)
  void setNextFocusDownId(T viewModel, int id) {
    viewModel.nexFocusDownId = id;
  }

  @ControllerProps(NodeProps.kNextFocusUpId)
  void setNextFocusUpId(T viewModel, int id) {
    viewModel.nextFocusUpId = id;
  }

  @ControllerProps(NodeProps.kNextFocusLeftId)
  void setNextFocusLeftId(T viewModel, int id) {
    viewModel.nextFocusLeftId = id;
  }

  @ControllerProps(NodeProps.kNextFocusRightId)
  void setNextFocusRightId(T viewModel, int id) {
    viewModel.nextFocusRightId = id;
  }

  @ControllerProps(NodeProps.kBorderLeftWidth)
  void setLeftBorderWidth(T viewModel, double width) {
    viewModel.borderLeftWidth = width;
  }

  @ControllerProps(NodeProps.kBorderTopWidth)
  void setTopBorderWidth(T viewModel, double width) {
    viewModel.borderTopWidth = width;
  }

  @ControllerProps(NodeProps.kBorderRightWidth)
  void setRightBorderWidth(T viewModel, double width) {
    viewModel.borderRightWidth = width;
  }

  @ControllerProps(NodeProps.kBorderBottomWidth)
  void setBottomBorderWidth(T viewModel, double width) {
    viewModel.borderBottomWidth = width;
  }

  @ControllerProps(NodeProps.kBorderColor)
  void setBorderColor(T viewModel, int color) {
    viewModel.borderColor = color;
  }

  @ControllerProps(NodeProps.kBorderLeftColor)
  void setBorderLeftColor(T viewModel, int color) {
    viewModel.borderLeftColor = color;
  }

  @ControllerProps(NodeProps.kBorderTopColor)
  void setBorderTopColor(T viewModel, int color) {
    viewModel.borderTopColor = color;
  }

  @ControllerProps(NodeProps.kBorderRightColor)
  void setBorderRightColor(T viewModel, int color) {
    viewModel.borderRightColor = color;
  }

  @ControllerProps(NodeProps.kBorderBottomColor)
  void setBorderBottomColor(T viewModel, int color) {
    viewModel.borderBottomColor = color;
  }

  @ControllerProps(NodeProps.kBorderStyle)
  void setBorderStyle(T viewModel, String borderStyle) {
    viewModel.borderStyle = borderStyle;
  }

  @ControllerProps(NodeProps.kBoxShadow)
  void setBoxShadow(T viewModel, VoltronArray? data) {
    viewModel.boxShadow = data;
  }

  @ControllerProps(NodeProps.kFocusable)
  void setFocusable(T viewModel, bool focusable) {
    viewModel.setFocusable(focusable);
  }

  @ControllerProps(NodeProps.kRequestFocus)
  void requestFocus(T viewModel, bool request) {
    viewModel.requestFocus(request);
  }

  @override
  @mustCallSuper
  void setCustomProp(RenderNode node, String propName, Object prop) {
    DomUpdateUtil.updateStyleProp(node, propName, prop);
  }

  void onAfterUpdateProps(RenderContext context, R renderNode) {}

  Widget createWidget(BuildContext context, T viewModel);

  void updateLayout(RenderContext context, R node) {
    var layoutX = node.layoutX;
    var layoutY = node.layoutY;
    var layoutWidth = node.layoutWidth;
    var layoutHeight = node.layoutHeight;
    node.renderViewModel.updateLayout(
      layoutX,
      layoutY,
      layoutWidth,
      layoutHeight,
    );
  }

  void updateExtra(T renderViewModel, Object updateExtra) {}

  void applyProps(RenderContext context, R node) {
    // empty
  }

  void updateEvents(T renderViewModel, Set<EventHolder> holders) {
    if (holders.isNotEmpty) {
      for (var holder in holders) {
        switch (holder.eventName) {
          case NativeGestureHandle.kClick:
            renderViewModel.setClickable(holder.isAdd);
            break;
          case NativeGestureHandle.kLongClick:
            renderViewModel.setLongClickable(holder.isAdd);
            break;
          case NativeGestureHandle.kTouchDown:
            renderViewModel.setTouchDownHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kTouchMove:
            renderViewModel.setTouchMoveHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kTouchEnd:
            renderViewModel.setTouchEndHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kTouchCancel:
            renderViewModel.setTouchCancelHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kShow:
            renderViewModel.setAttachedToWindowHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kDismiss:
            renderViewModel.setDetachedFromWindowHandle(holder.isAdd);
            break;
          case NativeGestureHandle.kPressIn:
            renderViewModel.setCanPressIn(holder.isAdd);
            break;
          case NativeGestureHandle.kPressOut:
            renderViewModel.setCanPressOut(holder.isAdd);
            break;
          default:
            handleExtraEvent(renderViewModel, holder);
            break;
        }
      }
    }
  }

  void handleExtraEvent(T renderViewModel, EventHolder eventHolder) {
    // empty
  }

  R createRenderNode(
    int id,
    VoltronMap? props,
    String name,
    RenderTree tree,
    ControllerManager controllerManager,
    bool lazy,
  );

  VirtualNode? createVirtualNode(
    int id,
    int pid,
    int index,
    String className,
    VoltronMap props,
  ) {
    return null;
  }

  T createRenderViewModel(R node, RenderContext context);

  // dispatch the js call UI Function.
  // @param node node实例
  // @param functionName 函数名
  // @param array 函数参数
  // @param promise 回调
  void dispatchFunction(
    T viewModel,
    String functionName,
    VoltronArray array, {
    Promise? promise,
  }) {
    switch (functionName) {
      case DevtoolsUtil.kGetScreenShot:
        DevtoolsUtil.getScreenShot(viewModel, array, promise);
        break;
      case DevtoolsUtil.kAddFrameCallback:
        DevtoolsUtil.addFrameCallback(viewModel, array, promise);
        break;
      case DevtoolsUtil.kRemoveFrameCallback:
        DevtoolsUtil.removeFrameCallback(viewModel, array, promise);
        break;
      case DevtoolsUtil.kGetLocationOnScreen:
        DevtoolsUtil.getLocationOnScreen(viewModel, array, promise);
        break;
      case kMeasureInWindow:
        measureInWindow(viewModel, array, promise);
        break;
      case kGETBoundingClientRect:
        getBoundingClientRect(viewModel, array, promise);
        break;
      default:
        break;
    }
  }

  void measureInWindow(
    RenderViewModel viewModel,
    VoltronArray array,
    Promise? promise,
  ) {
    if (promise == null) return;
    var renderObject = viewModel.currentContext?.findRenderObject() as RenderBox?;
    if (renderObject == null) {
      promise.reject("this view is null");
    } else {
      var position = renderObject.localToGlobal(Offset.zero);
      var size = renderObject.size;

      var x = position.dx;
      var y = position.dy;
      var width = size.width;
      var height = size.height;

      var statusBarHeight = ScreenUtil.getInstance().statusBarHeight;
      var navigationBarHeight = ScreenUtil.getInstance().navigationBarHeight;
      // We need to remove the status bar from the height.  getLocationOnScreen will include the
      // status bar.
      if (statusBarHeight > 0) {
        y -= statusBarHeight;
      }

      var paramsMap = VoltronMap();
      paramsMap.push("x", x);
      paramsMap.push("y", y);
      paramsMap.push("width", width);
      paramsMap.push("height", height);
      paramsMap.push("statusBarHeight", statusBarHeight);
      paramsMap.push("navigationBarHeight", navigationBarHeight);
      promise.resolve(paramsMap);
    }
  }

  void getBoundingClientRect(
    RenderViewModel viewModel,
    VoltronArray array,
    Promise? promise,
  ) {
    var map = array.get<VoltronMap>(0);
    bool relToContainer = map?.get(kKeyRelToContainer) ?? false;
    if (promise == null) return;
    var rootViewModel = viewModel.context.rootViewModelMap[viewModel.rootId];
    var renderObject = viewModel.currentContext?.findRenderObject() as RenderBox?;
    var rootRenderObject = rootViewModel?.currentContext?.findRenderObject() as RenderBox?;
    var x = 0.0;
    var y = 0.0;
    var width = 0.0;
    var height = 0.0;
    if (relToContainer) {
      if (renderObject == null || rootRenderObject == null) {
        promise.reject("this view or root view is null");
      } else {
        var rootPosition = rootRenderObject.localToGlobal(Offset.zero);
        var rootX = rootPosition.dx;
        var rootY = rootPosition.dy;

        var position = renderObject.localToGlobal(Offset.zero);
        var size = renderObject.size;

        x = position.dx - rootX;
        y = position.dy - rootY;
        width = size.width;
        height = size.height;
      }
    } else {
      if (renderObject == null) {
        promise.reject("this view is null");
      } else {
        var position = renderObject.localToGlobal(Offset.zero);
        var size = renderObject.size;

        x = position.dx;
        y = position.dy;
        width = size.width;
        height = size.height;
      }
    }
    var paramsMap = VoltronMap();
    paramsMap.push("x", x);
    paramsMap.push("y", y);
    paramsMap.push("width", width);
    paramsMap.push("height", height);

    promise.resolve(paramsMap);
  }

  void onBatchComplete(R node) {}

  void onManageChildComplete(R node) {}

  void onViewDestroy(RenderViewModel child) {
    child.onViewModelDestroy();
  }
}