import { _decorator, v3, Vec3 } from "cc";
import { mLogger } from "../common/Logger";
import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
import { CCComp } from "../../../../extensions/oops-plugin-framework/assets/module/common/CCComp";
import { oops } from "../../../../extensions/oops-plugin-framework/assets/core/Oops";
import { Monster } from "../hero/Mon";
import { HeroInfo, HType } from "../common/config/heroSet";
import { smc } from "../common/SingletonModuleComp";
import { GameEvent } from "../common/config/GameEvent";
import {BoxSet } from "../common/config/GameSet";
import { MonList, MonType, SpawnPowerBias, StageBossGrow, StageGrow, UpType, WaveSlotConfig, DefaultWaveSlot, IWaveSlot } from "./RogueConfig";
import { HeroAttrsComp } from "../hero/HeroAttrsComp";
import { MoveComp } from "../hero/MoveComp";
const { ccclass, property } = _decorator;

/** 视图层对象 */
@ccclass('MissionMonCompComp')
@ecs.register('MissionMonComp', false)
export class MissionMonCompComp extends CCComp {
    private static readonly BOSS_RENDER_PRIORITY = 1000000;
    private static readonly MON_SLOT_START_X = 30;
    private static readonly MON_SLOT_X_INTERVAL = 60;
    private static readonly MON_DROP_HEIGHT = 280;
    @property({ tooltip: "是否启用调试日志" })
    private debugMode: boolean = false;
    
    // 刷怪队列（用于插队生成：比如运营活动怪、技能召唤怪、剧情强制怪）
    // 约定：队列里的怪会优先于常规刷新处理
    private MonQueue: Array<{
        uuid: number,
        level: number,
    }> = [];
    
    private static readonly MAX_SLOTS = 6;
    private slotOccupiedEids: Array<number | null> = Array(6).fill(null);

    /** 全局生成顺序计数器，用于层级管理（预留） */
    private globalSpawnOrder: number = 0;
    /** 插队刷怪处理计时器 */
    private queueTimer: number = 0;
    private currentWave: number = 0;
    private waveTargetCount: number = 0;
    private waveSpawnedCount: number = 0;
    onLoad(){
        this.on(GameEvent.FightReady,this.fight_ready,this)
        this.on("SpawnSpecialMonster", this.onSpawnSpecialMonster, this);
        this.resetSlotSpawnData(1)
    }

    /**
     * 接收特殊刷怪事件并入队
     * 事件数据最小结构：{ uuid, level }
     */
    private onSpawnSpecialMonster(event: string, args: any) {
        if (!args) return;
        mLogger.log(this.debugMode, 'MissionMonComp', `[MissionMonComp] 收到特殊刷怪指令:`, args);
        this.MonQueue.push({
            uuid: args.uuid,
            level: args.level,
        });
        // 让队列在下一帧附近尽快消费，提升事件响应感
        this.queueTimer = 1.0; 
    }

    start() {
    }

    fight_ready(){
        smc.vmdata.mission_data.mon_num=0
        smc.mission.stop_spawn_mon = false
        this.globalSpawnOrder = 0
        this.queueTimer = 0
        this.currentWave = 0
        this.waveTargetCount = 0
        this.waveSpawnedCount = 0
        this.MonQueue = []
        this.startNextWave()
        mLogger.log(this.debugMode, 'MissionMonComp', "[MissionMonComp] Starting Wave System");
    }

    protected update(dt: number): void {
        if(!smc.mission.play) return
        if(smc.mission.pause) return
        if(smc.mission.stop_mon_action) return;
        if(!smc.mission.in_fight) return;
        this.refreshSlotOccupancy();
        this.tryAdvanceWave();
        if(!smc.mission.in_fight) return;
        if(smc.mission.stop_spawn_mon) return;
        this.updateSpecialQueue(dt);
    }

    private updateSpecialQueue(dt: number) {
        if (this.MonQueue.length <= 0) return;
        this.queueTimer += dt;
        if (this.queueTimer < 0.15) return;
        
        const item = this.MonQueue[0];
        const isBoss = MonList[MonType.MeleeBoss].includes(item.uuid) || MonList[MonType.LongBoss].includes(item.uuid);
        const slotsPerMon = isBoss ? 2 : 1;
        
        let slotIndex = -1;
        if (slotsPerMon === 2) {
            // Boss 只能放在 0, 2, 4
            for (const idx of [0, 2, 4]) {
                if (!this.slotOccupiedEids[idx] && !this.slotOccupiedEids[idx + 1]) {
                    slotIndex = idx;
                    break;
                }
            }
        } else {
            for (let i = 0; i < MissionMonCompComp.MAX_SLOTS; i++) {
                if (!this.slotOccupiedEids[i]) {
                    slotIndex = i;
                    break;
                }
            }
        }
        
        if (slotIndex !== -1) {
            this.MonQueue.shift();
            this.queueTimer = 0;
            const upType = this.getRandomUpType();
            this.addMonsterBySlot(slotIndex, item.uuid, isBoss, upType, Math.max(1, Number(item.level ?? 1)), slotsPerMon);
        }
    }

    private startNextWave() {
        this.currentWave += 1;
        smc.vmdata.mission_data.level = this.currentWave;
        this.resetSlotSpawnData(this.currentWave);
        
        let hasBoss = false;
        const config = WaveSlotConfig[this.currentWave] || DefaultWaveSlot;
        for (const slot of config) {
            if (slot.type === MonType.MeleeBoss || slot.type === MonType.LongBoss) {
                hasBoss = true;
            }
        }

        oops.message.dispatchEvent(GameEvent.NewWave, {
            wave: this.currentWave,
            total: this.waveTargetCount,
            bossWave: hasBoss,
        });
    }

    private tryAdvanceWave() {
        if (this.MonQueue.length > 0) return;
        if (this.hasActiveSlotMonster()) return;
        if (smc.vmdata.mission_data.mon_num > 0) return;
        this.startNextWave();
    }

    private getCurrentStage(): number {
        return Math.max(0, this.currentWave - 1);
    }

    private getRandomUpType(): UpType {
        const keys = Object.keys(StageGrow).map(v => Number(v) as UpType);
        const index = Math.floor(Math.random() * keys.length);
        return keys[index] ?? UpType.AP1_HP1;
    }

    private getRandomUuidByType(monType: number): number {
        const pool = (MonList as any)[monType] || MonList[MonType.Melee];
        if (!pool || pool.length === 0) return 6001;
        const index = Math.floor(Math.random() * pool.length);
        return pool[index];
    }

    private resolveGrowPair(upType: UpType, isBoss: boolean): [number, number] {
        // 普通怪基础成长：StageGrow
        const grow = StageGrow[upType] || StageGrow[UpType.AP1_HP1];
        if (!isBoss) return [grow[0], grow[1]];
        // Boss 额外成长：StageBossGrow（在普通成长上叠加）
        const bossGrow = StageBossGrow[upType] || StageBossGrow[UpType.AP1_HP1];
        return [grow[0] + bossGrow[0], grow[1] + bossGrow[1]];
    }

    private getSpawnPowerBias(): number {
        return SpawnPowerBias;
    }

    private resetSlotSpawnData(wave: number = 1) {
        const config: IWaveSlot[] = WaveSlotConfig[wave] || DefaultWaveSlot;
        this.slotOccupiedEids = Array(MissionMonCompComp.MAX_SLOTS).fill(null);
        
        let bosses: any[] = [];
        let normals: any[] = [];
        
        for (const slot of config) {
            const slotsPerMon = slot.slotsPerMon || 1;
            const isBoss = slot.type === MonType.MeleeBoss || slot.type === MonType.LongBoss;
            for (let i = 0; i < slot.count; i++) {
                const uuid = this.getRandomUuidByType(slot.type);
                const upType = this.getRandomUpType();
                const req = { uuid, isBoss, upType, monLv: wave, slotsPerMon };
                if (isBoss || slotsPerMon === 2) {
                    bosses.push(req);
                } else {
                    normals.push(req);
                }
            }
        }
        
        this.waveTargetCount = bosses.length + normals.length;
        this.waveSpawnedCount = 0;
        
        // Boss 只能放在 0, 2, 4 (即 1, 3, 5 号位)
        let bossAllowedIndices = [0, 2, 4];
        let assignedSlots = new Array(MissionMonCompComp.MAX_SLOTS).fill(null);
        
        for (const boss of bosses) {
            let placed = false;
            for (const idx of bossAllowedIndices) {
                if (!assignedSlots[idx] && !assignedSlots[idx + 1]) {
                    assignedSlots[idx] = boss;
                    assignedSlots[idx + 1] = "occupied"; // 占位
                    placed = true;
                    break;
                }
            }
            if (!placed) {
                mLogger.log(this.debugMode, 'MissionMonComp', "[MissionMonComp] No slot for boss!");
            }
        }
        
        for (const normal of normals) {
            let placed = false;
            for (let i = 0; i < MissionMonCompComp.MAX_SLOTS; i++) {
                if (!assignedSlots[i]) {
                    assignedSlots[i] = normal;
                    placed = true;
                    break;
                }
            }
            if (!placed) {
                mLogger.log(this.debugMode, 'MissionMonComp', "[MissionMonComp] No slot for normal monster!");
            }
        }
        
        // 立即生成本波所有怪物
        for (let i = 0; i < MissionMonCompComp.MAX_SLOTS; i++) {
            const req = assignedSlots[i];
            if (req && req !== "occupied") {
                this.addMonsterBySlot(i, req.uuid, req.isBoss, req.upType, req.monLv, req.slotsPerMon);
            }
        }
    }

    private hasActiveSlotMonster() {
        for (let i = 0; i < MissionMonCompComp.MAX_SLOTS; i++) {
            if (this.slotOccupiedEids[i]) return true;
        }
        return false;
    }

    private refreshSlotOccupancy() {
        for (let i = 0; i < MissionMonCompComp.MAX_SLOTS; i++) {
            const eid = this.slotOccupiedEids[i];
            if (!eid) continue;
            const entity = ecs.getEntityByEid(eid);
            if (!entity) {
                this.slotOccupiedEids[i] = null;
                continue;
            }
            const attrs = entity.get(HeroAttrsComp);
            if (!attrs || attrs.hp <= 0) {
                this.slotOccupiedEids[i] = null;
            }
        }
    }

    private addMonsterBySlot(
        slotIndex: number,
        uuid: number = 1001,
        isBoss: boolean = false,
        upType: UpType = UpType.AP1_HP1,
        monLv: number = 1,
        slotsPerMon: number = 1,
    ) {
        let mon = ecs.getEntity<Monster>(Monster);
        let scale = -1;
        // 如果占用了多个格子，出生坐标居中处理
        const centerXOffset = (slotsPerMon - 1) * MissionMonCompComp.MON_SLOT_X_INTERVAL / 2;
        const spawnX = MissionMonCompComp.MON_SLOT_START_X + slotIndex * MissionMonCompComp.MON_SLOT_X_INTERVAL + centerXOffset;
        const landingY = BoxSet.GAME_LINE + (isBoss ? 6 : 0);
        const spawnPos: Vec3 = v3(spawnX, landingY + MissionMonCompComp.MON_DROP_HEIGHT, 0);
        this.globalSpawnOrder = (this.globalSpawnOrder + 1) % 999; 
        
        mon.load(spawnPos, scale, uuid, isBoss, landingY, monLv);
        
        // 将它占用的所有格子都标记为这个 eid
        for (let j = 0; j < slotsPerMon; j++) {
            if (slotIndex + j < MissionMonCompComp.MAX_SLOTS) {
                this.slotOccupiedEids[slotIndex + j] = mon.eid;
            }
        }
        const move = mon.get(MoveComp);
        if (move) {
            move.spawnOrder = isBoss
                ? MissionMonCompComp.BOSS_RENDER_PRIORITY + this.globalSpawnOrder
                : this.globalSpawnOrder;
        }
        const model = mon.get(HeroAttrsComp);
        const base = HeroInfo[uuid];
        if (!model || !base) return;
        const stage = this.getCurrentStage();
        const grow = this.resolveGrowPair(upType, isBoss);
        const bias = Math.max(0.1, this.getSpawnPowerBias());
        model.ap = Math.max(1, Math.floor((base.ap + stage * grow[0]) * bias));
        model.hp_max = Math.max(1, Math.floor((base.hp + stage * grow[1]) * bias));
        model.hp = model.hp_max;
    }

    /** 视图对象通过 ecs.Entity.remove(ModuleViewComp) 删除组件是触发组件处理自定义释放逻辑 */
    reset() {
        // this.node.destroy();
    }
}