import { mLogger } from "../common/Logger";
import { _decorator, Node, Prefab, instantiate, Vec3 } from "cc";
import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
import { CCComp } from "../../../../extensions/oops-plugin-framework/assets/module/common/CCComp";
import { SkillBoxComp } from "./SkillBoxComp";
import { oops } from "db://oops-framework/core/Oops";
import { GameEvent } from "../common/config/GameEvent";
import { smc } from "../common/SingletonModuleComp";
const { ccclass, property } = _decorator;

interface SkillBoxSlot {
    x: number;
    y: number;
    used: boolean;
    node: Node | null;
}

/** 视图层对象 */
@ccclass('MissSkillsComp')
@ecs.register('MissSkillsComp', false)
export class MissSkillsComp extends CCComp {
    private debugMode: boolean = true;
    @property({type: Prefab})
    private skill_box: Prefab = null;

    private slots: SkillBoxSlot[] = [
        { x: -320, y: 240, used: false, node: null },
        { x: -240, y: 240, used: false, node: null },
        { x: -160, y: 240, used: false, node: null },
        { x: -80,  y: 240, used: false, node: null },
        { x: 0,    y: 240, used: false, node: null },
        { x: -320, y: 320, used: false, node: null },
        { x: -240, y: 320, used: false, node: null },
        { x: -160, y: 320, used: false, node: null },
        { x: -80,  y: 320, used: false, node: null },
        { x: 0,    y: 320, used: false, node: null },
    ];

    onLoad() {
        oops.message.on(GameEvent.UseSkillCard, this.onUseSkillCard, this);
        oops.message.on(GameEvent.RemoveSkillBox, this.onRemoveSkillBox, this);
    }

    onDestroy() {
        oops.message.off(GameEvent.UseSkillCard, this.onUseSkillCard, this);
        oops.message.off(GameEvent.RemoveSkillBox, this.onRemoveSkillBox, this);
    }

    private onRemoveSkillBox(event: string, args: any) {
        const node = args as Node;
        let removed = false;
        for (let i = 0; i < this.slots.length; i++) {
            if (this.slots[i].node === node) {
                this.slots[i].used = false;
                this.slots[i].node = null;
                removed = true;
                break;
            }
        }
        if (removed) {
            this.rearrangeSlots();
        }
    }

    private rearrangeSlots() {
        const validNodes: Node[] = [];
        for (let i = 0; i < this.slots.length; i++) {
            if (this.slots[i].used && this.slots[i].node && this.slots[i].node.isValid) {
                validNodes.push(this.slots[i].node);
            }
            this.slots[i].used = false;
            this.slots[i].node = null;
        }
        
        for (let i = 0; i < validNodes.length; i++) {
            if (i < this.slots.length) {
                this.slots[i].used = true;
                this.slots[i].node = validNodes[i];
                validNodes[i].setPosition(new Vec3(this.slots[i].x, this.slots[i].y, 0));
            }
        }
    }

    private onUseSkillCard(event: string, args: any) {
        const payload = args ?? event;
        const uuid = Number(payload?.uuid ?? 0);
        const card_lv = Math.max(1, Math.floor(Number(payload?.card_lv ?? 1)));
        if (!uuid) return;
        this.addSkill(uuid, card_lv);
    }

    start() {
        
    }

    addSkill(uuid: number, card_lv: number) {
        var parent = smc.map.MapView.scene.entityLayer!.node!.getChildByName("SKILL")!;
        
        if (!this.skill_box) {
            mLogger.error(this.debugMode, "MissSkillsComp", "skill_box prefab not set");
            return;
        }

        const emptyIndex = this.slots.findIndex(slot => !slot.used);
        if (emptyIndex === -1) {
            mLogger.warn(this.debugMode, "MissSkillsComp", "skill_box slots are full");
            return;
        }

        const node = instantiate(this.skill_box);
        node.parent = parent;
        node.setPosition(new Vec3(this.slots[emptyIndex].x, this.slots[emptyIndex].y, 0));
        
        this.slots[emptyIndex].used = true;
        this.slots[emptyIndex].node = node;

        const comp = node.getComponent(SkillBoxComp) || node.addComponent(SkillBoxComp);
        comp.init(uuid, card_lv);
    }

    /** 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();
    }
}