import { _decorator, BoxCollider2D, Button, CircleCollider2D, Collider2D, Component, find, Node, NodeEventType } from 'cc';
import { EventDispatcher } from '../../core_tgx/easy_ui_framework/EventDispatcher';
import { CarColorsGlobalInstance } from './CarColorsGlobalInstance';
import { CarCarColorsComponent } from './Components/CarCarColorsComponent';
import { PinComponent } from './Components/PinComponent';
import { GameEvent } from './Enum/GameEvent';
import { LayerAction } from './LayerAction';
import { UnitAction } from './UnitAction';
import { tgxUIMgr } from '../../core_tgx/tgx';
import { UI_BattleResult } from '../../scripts/UIDef';
import { LevelManager } from './Manager/LevelMgr';
import { CarBoxComponent } from './Components/CarBoxComponent';
import { CarColors, CarTypes } from './CarColorsGlobalTypes';
import { GameUtil } from './GameUtil';
const { ccclass, property } = _decorator;

enum ParkingStatus {
    Empty = "empty",       // 空闲
    InUse = "inuse",       // 已停车
    Locked = "empty-lock"  // 未解锁（后 3 个停车位）
}

@ccclass('LevelAction')
export class LevelAction extends Component {

    start() {
        this.registerListener();
        this.init_level();
        this.schedule(this.moveToCar, 1.2);
    }

    registerListener() {
        EventDispatcher.instance.on(GameEvent.EVENT_UPDATE_LAYER, this.hide_element, this);
    }

    get_lvl(): number {
        let arr = this.node.name.split("_");
        // console.log("split get_lvl>>>>>:", arr);
        return Number(arr[1].trim());
    }

    get_hole_num(): number {
        let hole_num: number = 0;
        this.node.children.forEach(layer_node => {
            let num = layer_node.getComponent(UnitAction).get_hole_num();
            hole_num += num;
        });
        return hole_num;
    }

    async init_level() {
        for (let i = 0; i < this.node.children.length; i++) {
            const temp = this.node.children[i];
            if (temp.getComponent(CarCarColorsComponent) || temp.getComponent(CarBoxComponent)) {
                CarColorsGlobalInstance.instance.carSysterm.addCar(this.node.children[i]);
            }
        }

        this.node.children.forEach(unit_node => {
            if (unit_node.getComponent(UnitAction)) {
                unit_node.getComponent(UnitAction).init_layer();
            }
        });

        await GameUtil.delay(0.2);
        CarColorsGlobalInstance.instance.carSysterm.sortCarSeatsByDifficulty();
        const color_pin_arr = CarColorsGlobalInstance.instance.carSysterm.carSeats;
        this.node.children.forEach(unit_node => {
            if (unit_node.getComponent(UnitAction)) {
                unit_node.getComponent(UnitAction)!.init_pin(color_pin_arr);
            }
        });

        this.init_parking();
        //默认隐藏一些
        await GameUtil.delay(0.2);
        this.set_default_layer();
        // this.set_pin_color();
    }

    init_parking() {
        const points = find("Canvas/Scene/Parkings").children
        for (let index = 0; index < points.length; index++) {
            const element = points[index];

            element.name = 'empty';
            if (index > 3) {
                element.name = `empty-lock${index}`;
                element.getChildByName('Barricade')!.active = true;
                element.getChildByName('Barricade')!.getChildByName('Ad')!.active = true;

                const childrenToRemove = element.children.slice(1);
                childrenToRemove.forEach(child => child.destroy());
            } else {
                element.removeAllChildren();
            }
        }
    }

    private set_default_layer() {
        //默认都是不显示的
        let layer_arr = this.get_all_layer();
        layer_arr.forEach(layer_action => {
            layer_action.set_status(0);
        });
        this.hide_element();
    }

    get_all_layer(): LayerAction[] {
        let arr: LayerAction[] = [];
        //默认都是不显示的
        if (!this.node) return;

        for (let i = this.node.children.length - 1; i >= 0; i--) {
            if (this.node.children[i].getComponent(UnitAction)) {
                const unit = this.node.children[i].getComponent(UnitAction)!;
                unit.get_layer(arr);
            }
        }
        return arr;
    }

    private async hide_element() {
        let default_show_layer_num = 2;
        let show_num = 0;
        let layer_arr = this.get_all_layer();
        if (!layer_arr) return;

        for (let i = 0; i < layer_arr.length; i++) {
            let layer_action = layer_arr[i];
            if (layer_action.get_element_num() <= 0) {
                continue;
            }
            show_num++;
            if (show_num <= default_show_layer_num) {
                if (layer_action.layer_status != 1) {
                    layer_action.set_status(1);
                    this.check_pins_block();
                    // this.set_pin_color();
                }
            } else if (show_num == (default_show_layer_num + 1)) {
                if (layer_action.layer_status != 2) {
                    layer_action.set_status(2);
                }
            } else {
                layer_action.set_status(0);
            }
        }
    }

    //动态给钉子上色
    private async set_pin_color() {
        const carSysterm = CarColorsGlobalInstance.instance.carSysterm;
        let layer_arr = this.get_all_layer();
        let canOutCars = carSysterm.findCanOutCars(); // 找到所有无障碍物的车子

        if (canOutCars.length === 0) {
            console.warn("没有可以开出的车，无法分配颜色");
            return;
        }

        let allPins: any[] = [];

        // 获取所有可见钉子
        layer_arr.forEach(layer => {
            if (layer.layer_status === 1) {
                let pinArr: any[] = [];
                layer.get_pin_color(pinArr);
                allPins.push(...pinArr);
            }
        });

        console.log("总可见钉子数量:", allPins.length);
        if (allPins.length === 0) return;

        let pinIndex = 0; // 记录当前分配到哪个钉子
        for (let car of canOutCars) {
            let carComp = car.getComponent(CarCarColorsComponent);
            let carColor = carComp.carColor;
            let seatCount = this.getCarSeatCount(carComp.carType); // 获取车的载客量

            // 遍历当前车的座位数，依次给钉子赋值
            for (let i = 0; i < seatCount; i++) {
                if (pinIndex >= allPins.length) return; // 说明钉子已经全部分配完毕
                allPins[pinIndex].pin_color = carColor;
                pinIndex++;
            }
        }
    }

    /** 根据车辆类型获取对应的载客量 */
    private getCarSeatCount(carType: CarTypes): number {
        switch (carType) {
            case CarTypes.Sedan: return 4;  // 4座
            case CarTypes.Minivan: return 6; // 6座
            case CarTypes.Bus: return 8;  // 8座
            default: return 4; // 默认最小
        }
    }


    //每个钉子检测是否被遮挡
    private async check_pins_block() {
        let layer_arr = this.get_all_layer();
        layer_arr.forEach(layer => {
            if (layer.layer_status == 1) {
                layer.node.children.forEach((element) => {
                    const pins = element.getComponentsInChildren(PinComponent)!;
                    pins.forEach(async (pin) => {
                        const pinCom = pin.getComponent(PinComponent)!;
                        pinCom.checkBlocking();
                    })
                })
            }
        });
    }

    /** 返回顶部面板里的颜色钉子组件数组*/
    get_pin_color(): PinComponent[] {
        let arr: PinComponent[] = [];
        const units = this.node.getComponentsInChildren(UnitAction)!;
        // console.log('units.length:', units.length);
        units.forEach((unit) => {
            unit.get_pin_color(arr);
        })
        return arr
    }

    async moveToCar() {
        const { isEnd } = LevelManager.instance.levelModel;
        if (isEnd) return;

        const points = find("Canvas/Scene/Parkings").children
        let cars: Array<Node> = []
        let isEmpty = false

        for (let i = points.length; i--;) {
            if (points[i].name === "inuse" && points[i].children.length === 1) {
                cars.push(points[i].children[0])
                continue
            }

            if (points[i].name === "inuse" && points[i].children.length === 2) {
                cars.push(points[i].children[1])
                isEmpty = true
                continue
            }

            if (points[i].name === "empty") {
                isEmpty = true
                continue
            }
        }

        if (cars.length === 0) {
            // console.log("没车了!")
            return
        }

        let pinCom = null;
        let layer_arr = this.get_all_layer();
        layer_arr.forEach(layer => {
            if (layer.layer_status == 1) {
                layer.node.children.forEach((element) => {
                    const pins = element.getComponentsInChildren(PinComponent)!;
                    pins.forEach(async (pin) => {
                        pinCom = pin.getComponent(PinComponent)!;
                        if (pinCom.isBlocked)
                            return

                        let selectedCar: Node = null
                        for (let i = cars.length; i--;) {
                            const car = cars[i]
                            const carComp = car.getComponent(CarCarColorsComponent)!;

                            if (carComp && carComp.isFull)
                                continue

                            // 颜色相同
                            // console.log('车颜色:', carComp.carColor, '钉子颜色:', pinCom.pin_color);
                            if (carComp && pinCom) {
                                if (carComp.carColor === pinCom.pin_color) {
                                    if (selectedCar === null) {
                                        selectedCar = car
                                        continue
                                    }
                                    if (selectedCar.getComponent(CarCarColorsComponent).roleNum === 0) {
                                        selectedCar = car
                                    }
                                }
                            }
                        }

                        // 匹配的车
                        if (selectedCar !== null) {
                            const pin_color = pinCom.pin_color
                            CarColorsGlobalInstance.instance.carSysterm.removeColorFromSeats(pin_color)

                            if (selectedCar.getComponent(CarCarColorsComponent).addRole(pinCom.node)) {
                                selectedCar.setParent(find("Canvas/Scene/Levels"), true);
                            }
                        }
                    })
                });
            }
        });

        if (!isEmpty) {
            this.checkGameOver();
        }
    }

    //检测游戏是否结束
    async checkGameOver() {
        const checkOver = () => {
            const { isEnd } = LevelManager.instance.levelModel;
            if (isEnd) return;

            const isEmpty = this.checkParkingEmpty();
            if (isEmpty) return;

            const hasMatchingNails = this.hasMatchingNails();
            // console.log('hasMatchingNails:', hasMatchingNails);
            if (hasMatchingNails) {
                return false;
            }

            // 游戏结束
            const ui = tgxUIMgr.inst.getUI(UI_BattleResult)!;
            if (!ui) {
                LevelManager.instance.levelModel.isWin = false;
                LevelManager.instance.levelModel.isEnd = true;
                tgxUIMgr.inst.showUI(UI_BattleResult);
            }
        };

        this.unschedule(checkOver);
        this.scheduleOnce(checkOver, 3);
    }

    // 检查停车场是否为空
    private checkParkingEmpty(): boolean {
        const points = find("Canvas/Scene/Parkings").children;
        for (let index = 0; index < points.length; index++) {
            const point = points[index];
            const status = this.getParkingStatus(index, point);
            if (status === ParkingStatus.Empty) {
                return true; // 有空位
            }
        }
        return false; // 停车场已满
    }

    // 获取停车位状态
    private getParkingStatus(index: number, point: Node): ParkingStatus {
        if (point.name.startsWith(ParkingStatus.Locked)) {
            const barricade = point.getChildByName("Barricade");
            if (barricade && !barricade.active) {
                return ParkingStatus.Empty; // 已解锁但未停车
            }
            return ParkingStatus.Locked; // 未解锁
        }

        if (index <= 3) {
            if (point.name === ParkingStatus.InUse && point.children.length > 0) {
                return ParkingStatus.InUse; // 已停车
            }
        } else {
            if (point.name === ParkingStatus.InUse && point.children.length > 1) {
                return ParkingStatus.InUse; // 已停车
            }
        }
        return ParkingStatus.Empty; // 空闲
    }

    private hasMatchingNails(): boolean {
        const points = find("Canvas/Scene/Parkings").children;
        const layer_arr = this.get_all_layer();

        for (const point of points) {
            if (point.name === 'inuse' && point.children.length > 0) {
                const car = point.children[0];
                const carComp = car.getComponent(CarCarColorsComponent);
                if (!carComp || carComp.isFull) {
                    continue; // 车辆已满，跳过
                }

                // 查找匹配的钉子
                const carColor = carComp.carColor;
                for (const layer of layer_arr) {
                    if (layer.layer_status !== 1) continue;

                    for (const element of layer.node.children) {
                        const pins = element.getComponentsInChildren(PinComponent);
                        for (const pin of pins) {
                            const pinCom = pin.getComponent(PinComponent);
                            if (pinCom.isBlocked) continue; // 如果钉子已被匹配，跳过

                            // 颜色相同
                            if (pinCom.pin_color === carColor) {
                                return true; // 找到匹配的钉子
                            }
                        }
                    }
                }
            }
        }

        return false; // 没有找到匹配的钉子
    }

    protected onDestroy(): void {
        EventDispatcher.instance.off(GameEvent.EVENT_UPDATE_LAYER, this.hide_element);
        this.unscheduleAllCallbacks()
    }

    update(deltaTime: number) {
        // this.moveToCar();
    }
}