import * as Blockly from "blockly";
import 'blockly/msg/zh-hans';
import {javascriptGenerator} from "blockly/javascript";
import {pythonGenerator} from "blockly/python";
// 导入图片资源
import about_turnImage from '@/assets/images/blockly/component/about_turn.png';
import move_backwardImage from '@/assets/images/blockly/component/move_backward.png';
import move_forwardImage from '@/assets/images/blockly/component/move_forward.png';
import pick_upImage from '@/assets/images/blockly/component/pick_up.png';
import turn_leftImage from '@/assets/images/blockly/component/turn_left.png';
import turn_rightImage from '@/assets/images/blockly/component/turn_right.png';
import useImage from '@/assets/images/blockly/component/use.png';
import pauseImage from '@/assets/images/blockly/component/pause.png';
import play_soundImage from '@/assets/images/blockly/component/sound.png';
import constructImage from '@/assets/images/blockly/component/construct.png';
import {DICT_TYPE} from '@/utils/dictUtils.js';


// 安全地获取和解析字典数据
const getDictDataFromStorage = (dictType) => {
  try {
    const data = localStorage.getItem(dictType);
    return data ? JSON.parse(data) : [];
  } catch (error) {
    console.error(`解析${dictType}字典数据失败:`, error);
    return [];
  }
};

// 地图元素类型字典
const savedMapTypeDict = getDictDataFromStorage(DICT_TYPE.AI_BLOCKLY_MAP_TYPE);
const BLOCKLY_MAP_TYPE_DICT = savedMapTypeDict.reduce((acc, item) => {
  acc[item.value.toUpperCase()] = item.value;
  return acc;
}, {});

// 特殊积木字典
const blocklyMapSpecialDict = getDictDataFromStorage(DICT_TYPE.BLOCKLY_MAP_SPECIAL);
const BLOCKLY_MAP_SPECIAL_DICT = blocklyMapSpecialDict.reduce((acc, item) => {
  acc[item.value.toUpperCase()] = item.value;
  return acc;
}, {});
// 地图标记字典
const blocklyMapMarkDict = getDictDataFromStorage(DICT_TYPE.BLOCKLY_MAP_MARK);
const BLOCKLY_MAP_MARK_DICT = blocklyMapMarkDict.reduce((acc, item) => {
  acc[item.value.toUpperCase()] = {
    value: item.value,
    label: item.label,
    img: item.remark
  };
  return acc;
}, {});

/**
 * 定义所有可用的自定义积木配置
 */
const availableBlocks = {
  // 通用积木 - 始终可用(移动控制)
  move_forward: {
    jsonConfig: {
      "type": "move_forward",
      "message0": "%1 向前移动",
      "args0": [
        {
          "type": "field_image",
          "src": move_forwardImage,
          "width": 20,
          "height": 20,
          "alt": "向前移动"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向前移动一格",
      "helpUrl": ""
    },
    isGeneral: true // 标记为通用积木
  },
  move_forward_param: {
    jsonConfig: {
      "type": "move_forward_param",
      "message0": "%1 向前移动 %2 次",
      "args0": [
        {
          "type": "field_image",
          "src": move_forwardImage,
          "width": 20,
          "height": 20,
          "alt": "向前移动多次"
        },
        {
          "type": "field_number",
          "name": "PARAM",
          "value": 1,
          "min": 1,
          "max": 10,
          "precision": 1
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向前移动指定次数",
      "helpUrl": ""
    },
    isGeneral: true // 标记为通用积木
  },
  move_backward: {
    jsonConfig: {
      "type": "move_backward",
      "message0": "%1 向后移动",
      "args0": [
        {
          "type": "field_image",
          "src": move_backwardImage,
          "width": 20,
          "height": 20,
          "alt": "向后移动"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向后移动一格",
      "helpUrl": ""
    },
    isGeneral: true
  },
  move_backward_param: {
    jsonConfig: {
      "type": "move_backward_param",
      "message0": "%1 向后移动 %2 次",
      "args0": [
        {
          "type": "field_image",
          "src": move_backwardImage,
          "width": 20,
          "height": 20,
          "alt": "向后移动多次"
        },
        {
          "type": "field_number",
          "name": "PARAM",
          "value": 1,
          "min": 1,
          "max": 10,
          "precision": 1
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向后移动指定次数",
      "helpUrl": ""
    },
    isGeneral: true
  },
  turn_left: {
    jsonConfig: {
      "type": "turn_left",
      "message0": "%1 向左转",
      "args0": [
        {
          "type": "field_image",
          "src": turn_leftImage,
          "width": 20,
          "height": 20,
          "alt": "向左转"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向左转",
      "helpUrl": ""
    },
    isGeneral: true
  },
  turn_right: {
    jsonConfig: {
      "type": "turn_right",
      "message0": "%1 向右转",
      "args0": [
        {
          "type": "field_image",
          "src": turn_rightImage,
          "width": 20,
          "height": 20,
          "alt": "向右转"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向右转",
      "helpUrl": ""
    },
    isGeneral: true
  },
  turn_around: {
    jsonConfig: {
      "type": "turn_around",
      "message0": "%1 向后转",
      "args0": [
        {
          "type": "field_image",
          "src": about_turnImage,
          "width": 20,
          "height": 20,
          "alt": "向后转"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 230,
      "tooltip": "控制角色向后转",
      "helpUrl": ""
    },
    isGeneral: true
  },
  // 通用积木 - 始终可用(功能积木)
  pickup_item: {
    jsonConfig: {
      "type": "pickup_item",
      "message0": "%1 拾取物品",
      "args0": [
        {
          "type": "field_image",
          "src": pick_upImage,
          "width": 20,
          "height": 20,
          "alt": "拾取物品"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 30,
      "tooltip": "尝试拾取当前位置的物品",
      "helpUrl": ""
    },
    isGeneral: true
  },
  use_item: {
    jsonConfig: {
      "type": "use_item",
      "message0": "%1 使用物品",
      "args0": [
        {
          "type": "field_image",
          "src": useImage,
          "width": 20,
          "height": 20,
          "alt": "使用物品"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 30,
      "tooltip": "在当前位置使用物品",
      "helpUrl": ""
    },
    isGeneral: true
  },
  // 当经过某个形状的积木（可作为参数使用的value类型）
  when_passed: {
    jsonConfig: {
      "type": "when_passed",
      "message0": "当经过 ： %1",
      "args0": [
        {
          "type": "field_dropdown",
          "name": "SHAPE",
          "options": Object.values(BLOCKLY_MAP_MARK_DICT).map(shape => [
            {
              "src": shape.img,
              "width": 30,
              "height": 30,
              "alt": shape.label
            },
            shape.value
          ])
        }
      ],
      "output": "Boolean",
      "colour": 30,
      "tooltip": "检查角色是否经过指定形状，可作为参数使用",
      "helpUrl": ""
    },
    isGeneral: true
  },
  // 特殊积木 - 可根据配置动态加载
  pause: {
    jsonConfig: {
      "type": "pause",
      "message0": "%1 暂停 %2 秒",
      "args0": [
        {
          "type": "field_image",
          "src": pauseImage,
          "width": 20,
          "height": 20,
          "alt": "暂停"
        },
        {
          "type": "field_number",
          "name": "SECONDS",
          "value": 1,
          "min": 1,
          "max": 10,
          "precision": 1
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 0,
      "tooltip": "让角色在原地停留指定的秒数",
      "helpUrl": ""
    },
    isGeneral: false
  },
  play_sound: {
    jsonConfig: {
      "type": "play_sound",
      "message0": "%1 声音",
      "args0": [
        {
          "type": "field_image",
          "src": play_soundImage,
          "width": 20,
          "height": 20,
          "alt": "声音"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 160,
      "tooltip": "自动触发特效提示音，并根据当前方格类型执行相应操作",
      "helpUrl": ""
    },
    isGeneral: false
  },
  construct: {
    jsonConfig: {
      "type": "construct",
      "message0": "%1 修建",
      "args0": [
        {
          "type": "field_image",
          "src": constructImage,
          "width": 20,
          "height": 20,
          "alt": "修建"
        }
      ],
      "previousStatement": null,
      "nextStatement": null,
      "colour": 160,
      "tooltip": "修建处理",
      "helpUrl": ""
    },
    isGeneral: false
  }
};

/**
 * 定义所有可用的JavaScript生成器配置
 */
const availableGenerators = {
  // 通用生成器 - 始终可用
  move_forward: function(block) {
    return 'await moveForward();\n';
  },
  move_forward_param: function(block) {
    const stepCount = block.getFieldValue('PARAM');
    return `await moveForward(${stepCount});\n`;
  },
  move_backward: function(block) {
    return 'await moveBackward();\n';
  },
  move_backward_param: function(block) {
    const stepCount = block.getFieldValue('PARAM');
    return `await moveBackward(${stepCount});\n`;
  },
  turn_left: function(block) {
    return 'await turnLeft();\n';
  },
  turn_right: function(block) {
    return 'await turnRight();\n';
  },
  turn_around: function(block) {
    return 'await turnAround();\n';
  },
  pickup_item: function(block) {
    return 'await pickupItem();\n';
  },
  use_item: function(block) {
    return 'await useItem();\n';
  },
  when_passed: function(block) {
    const shape = block.getFieldValue('SHAPE');
    return [`whenPassed('${shape}')`, javascriptGenerator.ORDER_FUNCTION_CALL];
  },
  // 特殊生成器 - 可根据配置动态加载
  pause: function(block) {
    const seconds = block.getFieldValue('SECONDS');
    return `await pause(${seconds});\n`;
  },
  play_sound: function(block) {
    return 'await playSound();\n';
  },
  construct: function(block) {
    return 'await construct();\n';
  }
};

/**
 * 定义所有可用的Python生成器配置
 */
const availablePythonGenerators = {
  // 通用生成器 - 始终可用
  move_forward: function(block) {
    return 'move_forward()\n';
  },
  move_forward_param: function(block) {
    const stepCount = block.getFieldValue('PARAM');
    return `move_forward(${stepCount})\n`;
  },
  move_backward: function(block) {
    return 'move_backward()\n';
  },
  move_backward_param: function(block) {
    const stepCount = block.getFieldValue('PARAM');
    return `move_backward(${stepCount})\n`;
  },
  turn_left: function(block) {
    return 'turn_left()\n';
  },
  turn_right: function(block) {
    return 'turn_right()\n';
  },
  turn_around: function(block) {
    return 'turn_around()\n';
  },
  pickup_item: function(block) {
    return 'pickup_item()\n';
  },
  use_item: function(block) {
    return 'use_item()\n';
  },
  when_passed: function(block) {
    const shape = block.getFieldValue('SHAPE');
    return [`when_passed('${shape}')`, pythonGenerator.ORDER_FUNCTION_CALL];
  },
  // 特殊生成器 - 可根据配置动态加载
  pause: function(block) {
    const seconds = block.getFieldValue('SECONDS');
    return `pause(${seconds})\n`;
  },
  play_sound: function(block) {
    return 'play_sound()\n';
  },
  construct: function(block) {
    return 'construct()\n';
  }
};

/**
 * 注册自定义Blockly积木
 * @param {Array<string>} blocklySpecialBlocks - 特殊积木方法标识集合
 */
export function registerCustomBlocks(blocklySpecialBlocks = []) {
  // 确保blocklySpecialBlocks始终是数组
  blocklySpecialBlocks = Array.isArray(blocklySpecialBlocks) ? blocklySpecialBlocks : [];
  // 遍历所有可用积木
  for (const [blockName, blockConfig] of Object.entries(availableBlocks)) {
    // 如果是通用积木，或者是允许的特殊积木，则注册
    if (blockConfig.isGeneral || blocklySpecialBlocks.includes(blockName)) {
      Blockly.Blocks[blockName] = {
        init: function() {
          this.jsonInit(blockConfig.jsonConfig);
        }
      };
    }
  }
}

/**
 * 设置Blockly中文本地化
 */
export function setupBlocklyChineseLocale() {
// 使用扩展方式覆盖默认的英文文本为中文
  const locale = {
    // 逻辑积木中文配置
    CONTROLS_IF_MSG_IF: "如果",
    CONTROLS_IF_MSG_ELSEIF: "否则如果",
    CONTROLS_IF_MSG_ELSE: "否则",
    CONTROLS_IF_MSG_THEN: "执行",
    CONTROLS_IF_MSG_DO: "执行",
    CONTROLS_IF_TOOLTIP_1: "如果条件为真，则执行相应的代码。",
    CONTROLS_IF_TOOLTIP_2: "如果条件为真，则执行相应的代码；否则执行其他代码。",
    CONTROLS_IF_TOOLTIP_3: "如果条件为真，则执行相应的代码；否则检查其他条件。",
    CONTROLS_IF_TOOLTIP_4: "如果条件为真，则执行相应的代码；否则检查其他条件，如果都不满足则执行最后代码。",

    // 控制块的弹出菜单文本
    CONTROLS_IF_IF: "如果",
    CONTROLS_IF_ELSEIF: "否则如果",
    CONTROLS_IF_ELSE: "否则",
    CONTROLS_IF_IF_TITLE: "如果",
    CONTROLS_IF_IF_TITLE_IF: "如果",
    CONTROLS_IF_ELSEIF_TITLE_ELSEIF: "否则如果",
    CONTROLS_IF_ELSE_TITLE: "否则",
    CONTROLS_IF_ELSE_TITLE_ELSE: "否则",

    // 条件块的提示文本和帮助URL
    CONTROLS_IF_HELPURL: "条件语句帮助",
    CONTROLS_IF_TOOLTIP_IF: "添加或删除条件。",
    CONTROLS_IF_TOOLTIP_ELSE: "添加或删除否则块。",

    // 添加设置按钮相关的中文配置
    CONTROLS_IF_ELSEIF_TOOLTIP: "否则如果条件为真，则执行相应的代码。",
    CONTROLS_IF_ELSE_TOOLTIP: "否则执行相应的代码。",

    // 比较运算符中文配置
    LOGIC_COMPARE_EQ: "等于",
    LOGIC_COMPARE_NEQ: "不等于",
    LOGIC_COMPARE_LT: "小于",
    LOGIC_COMPARE_LTE: "小于等于",
    LOGIC_COMPARE_GT: "大于",
    LOGIC_COMPARE_GTE: "大于等于",
    LOGIC_COMPARE_TOOLTIP_EQ: "比较两个值是否相等。",
    LOGIC_COMPARE_TOOLTIP_NEQ: "比较两个值是否不相等。",
    LOGIC_COMPARE_TOOLTIP_LT: "比较第一个值是否小于第二个值。",
    LOGIC_COMPARE_TOOLTIP_LTE: "比较第一个值是否小于或等于第二个值。",
    LOGIC_COMPARE_TOOLTIP_GT: "比较第一个值是否大于第二个值。",
    LOGIC_COMPARE_TOOLTIP_GTE: "比较第一个值是否大于或等于第二个值。",

    // 逻辑运算中文配置
    LOGIC_OPERATION_AND: "且",
    LOGIC_OPERATION_OR: "或",
    LOGIC_OPERATION_TOOLTIP_AND: "如果两个条件都为真，则结果为真。",
    LOGIC_OPERATION_TOOLTIP_OR: "如果任一条件为真，则结果为真。",

    // 布尔值配置
    LOGIC_BOOLEAN_TRUE: "真",
    LOGIC_BOOLEAN_FALSE: "假",
    LOGIC_BOOLEAN_TOOLTIP: "返回一个布尔值：真或假。",

    // 循环积木中文配置
    CONTROLS_REPEAT_TITLE: "重复%1次",
    CONTROLS_REPEAT_TOOLTIP: "重复执行内部代码指定次数。",
    CONTROLS_REPEAT_MSG_DO: "执行",
    CONTROLS_REPEAT_INPUT_DO: "执行",
    CONTROLS_WHILEUNTIL_MSG_DO: "执行",
    CONTROLS_WHILEUNTIL_INPUT_DO: "执行",
    CONTROLS_FOR_MSG_DO: "执行",
    CONTROLS_FOR_INPUT_DO: "执行",
    CONTROLS_FOR_EACH_MSG_DO: "执行",
    CONTROLS_FOR_EACH_INPUT_DO: "执行",

    // 数学积木中文配置
    MATH_NUMBER_TOOLTIP: "一个数字。在编辑器中双击以更改。",
    MATH_ADDITION_SYMBOL: "加",
    MATH_SUBTRACTION_SYMBOL: "减",
    MATH_MULTIPLICATION_SYMBOL: "乘",
    MATH_DIVISION_SYMBOL: "除",
    MATH_ARITHMETIC_TOOLTIP_ADD: "返回两个数的和。",
    MATH_ARITHMETIC_TOOLTIP_SUBTRACT: "返回第一个数减去第二个数的差。",
    MATH_ARITHMETIC_TOOLTIP_MULTIPLY: "返回两个数的积。",
    MATH_ARITHMETIC_TOOLTIP_DIVIDE: "返回第一个数除以第二个数的商。"
  };

  // 使用Object.assign来合并配置，避免直接修改导入对象
  Object.assign(Blockly.Msg, locale);
}

/**
 * 注册JavaScript生成器
 * @param {Array<string>} blocklySpecialBlocks - 特殊积木方法标识集合
 */
export function registerJavaScriptGenerators(blocklySpecialBlocks = []) {
  // 确保blocklySpecialBlocks始终是数组
  blocklySpecialBlocks = Array.isArray(blocklySpecialBlocks) ? blocklySpecialBlocks : [];
  // 遍历所有可用生成器
  for (const [blockName, generatorFunc] of Object.entries(availableGenerators)) {
    // 如果是通用生成器，或者是允许的特殊生成器对应的生成器，则注册
    if (availableBlocks[blockName].isGeneral || blocklySpecialBlocks.includes(blockName)) {
      javascriptGenerator.forBlock[blockName] = generatorFunc;
    }
  }

  // 为text_print块添加生成器，用于调试（始终可用）
  javascriptGenerator.forBlock['text_print'] = function(block) {
    const msg = javascriptGenerator.valueToCode(block, 'TEXT', javascriptGenerator.ORDER_NONE) || '';
    return msg;
  };
}

/**
 * 注册Python生成器
 * @param {Array<string>} blocklySpecialBlocks - 特殊积木方法标识集合
 */
export function registerPythonGenerators(blocklySpecialBlocks = []) {
  // 确保blocklySpecialBlocks始终是数组
  blocklySpecialBlocks = Array.isArray(blocklySpecialBlocks) ? blocklySpecialBlocks : [];
  // 遍历所有可用生成器
  for (const [blockName, generatorFunc] of Object.entries(availablePythonGenerators)) {
    // 如果是通用生成器，或者是允许的特殊生成器对应的生成器，则注册
    if (availableBlocks[blockName].isGeneral || blocklySpecialBlocks.includes(blockName)) {
      pythonGenerator.forBlock[blockName] = generatorFunc;
    }
  }

  // 为text_print块添加生成器，用于调试（始终可用）
  pythonGenerator.forBlock['text_print'] = function(block) {
    const msg = pythonGenerator.valueToCode(block, 'TEXT', pythonGenerator.ORDER_NONE) || '';
    return msg;
  };
}

/**
 * 初始化Blockly工作区
 * @param {HTMLElement} blocklyDiv - Blockly容器元素
 * @param {HTMLElement} toolbox - 工具箱元素
 * @returns {Blockly.WorkspaceSvg} - Blockly工作区实例
 */
export function initBlockly(options = {}) {
  // 应用中文配置
  setupBlocklyChineseLocale();

  const defaultOptions = {
    toolbox: document.getElementById('toolbox'),
    collapse: false,
    comments: true,
    disable: false, // 设为false以允许编辑
    maxBlocks: Infinity,
    trashcan: true,
    horizontalLayout: false,
    toolboxPosition: 'start',
    toolboxCollapse: false, // 设置工具箱默认展开
    toolboxAlwaysExpanded: true, // 确保点击类别后保持展开状态
    css: true,
    media: 'https://unpkg.com/blockly/media/',
    rtl: false,
    scrollbars: true,
    sounds: false, // 禁用声音以提高性能
    oneBasedIndex: true,
    grid: {
      spacing: 20,
      length: 3,
      colour: "#ccc",
      snap: true
    },
    zoom: {
      controls: true,
      wheel: true,
      startScale: 1.0,
      maxScale: 3,
      minScale: 0.3,
      scaleSpeed: 1.2
    }
  };

  // 合并默认选项和用户提供的选项
  const finalOptions = { ...defaultOptions, ...options };

  return Blockly.inject('blocklyDiv', finalOptions);
}

/**
 * 获取所有可用的积木配置
 * @returns {Object} 所有可用积木的配置对象
 */
export function getAllBlocksConfig() {
  return {...availableBlocks};
}

/**
 * 获取所有可用的JavaScript生成器配置
 * @returns {Object} 所有可用JavaScript生成器的配置对象
 */
export function getAllGeneratorsConfig() {
  return {...availableGenerators};
}

/**
 * 获取所有可用的Python生成器配置
 * @returns {Object} 所有可用Python生成器的配置对象
 */
export function getAllPythonGeneratorsConfig() {
  return {...availablePythonGenerators};
}

// 导出字典常量
export {  BLOCKLY_MAP_TYPE_DICT, BLOCKLY_MAP_MARK_DICT, BLOCKLY_MAP_SPECIAL_DICT };

export default {
  registerCustomBlocks,
  registerJavaScriptGenerators,
  registerPythonGenerators,
  setupBlocklyChineseLocale,
  initBlockly,
  getAllBlocksConfig,
  getAllGeneratorsConfig,
  BLOCKLY_MAP_TYPE_DICT,
  BLOCKLY_MAP_MARK_DICT,
  BLOCKLY_MAP_SPECIAL_DICT
};