import { _decorator, instantiate, Label, Node, Prefab, UITransform, v3, Vec3 } from 'cc';
import { CCComp } from 'db://oops-framework/module/common/CCComp';
import { ecs } from 'db://oops-framework/libs/ecs/ECS';
import { SkillSet } from '../common/config/SkillSet';
import { BoxSet, FacSet } from '../common/config/GameSet';
import { smc } from '../common/SingletonModuleComp';
import { Skill } from '../skill/Skill';
import { mLogger } from '../common/Logger';
const { ccclass, property } = _decorator;

@ccclass('HSkillComp')
@ecs.register('HSkillComp', false)
export class HSkillComp extends CCComp {
    debugMode: boolean = false;
    private readonly panelName: string = 'skill_debug_panel';
    private readonly panelWidth: number = 680;
    private readonly panelHeight: number = 1180;
    private readonly colCount: number = 4;
    private readonly cellWidth: number = 160;
    private readonly cellHeight: number = 68;
    private readonly startX: number = -240;
    private readonly startY: number = 560;
    @property(Prefab)
    btnPrefab: Prefab | null = null;

    private panelNode: Node | null = null;
    private buttonNodes: Node[] = [];
    private mockCasterNode: Node | null = null;
    private mockCasterView: any = null;
    private currentSkill: Skill | null = null;

    protected onLoad(): void {
        this.ensurePanel();
    }

    start() {
        this.renderSkillButtons();
    }
    
    start_test() {
        this.node.active = true;
        const home = this.node.parent?.getChildByName('mission_home');
        if (home) {
            home.active = false;
        }
        this.renderSkillButtons();
    }

    end_test() {
        const home = this.node.parent?.getChildByName('mission_home');
        if (home) {
            home.active = true;
        }
        this.node.active = false;
    }

    update_data(uuid: number) {
        this.renderSkillButtons();
    }

    private ensurePanel() {
        let panel = this.node.getChildByName(this.panelName);
        if (!panel) {
            panel = new Node(this.panelName);
            panel.parent = this.node;
            const transform = panel.addComponent(UITransform);
            transform.setContentSize(this.panelWidth, this.panelHeight);
            panel.setPosition(0, 640, 0);
        }
        this.panelNode = panel;
    }

    private renderSkillButtons() {
        this.ensurePanel();
        const prefab = this.getBtnPrefab();
        if (!prefab || !this.panelNode || !this.panelNode.isValid) {
            return;
        }
        this.clearButtons();
        const skillIds = Object.keys(SkillSet).map(Number).sort((a, b) => a - b);
        skillIds.forEach((skillId, index) => {
            const btnNode = instantiate(prefab);
            btnNode.parent = this.panelNode;
            const row = Math.floor(index / this.colCount);
            const col = index % this.colCount;
            btnNode.setPosition(
                this.startX + col * this.cellWidth,
                this.startY - row * this.cellHeight,
                0
            );
            const label = btnNode.getChildByName('Label')?.getComponent(Label);
            if (label) {
                const conf = SkillSet[skillId];
                label.string = `${skillId} ${conf?.name ?? ''}`;
            }
            btnNode.on(Node.EventType.TOUCH_END, () => this.playDebugSkill(skillId), this);
            this.buttonNodes.push(btnNode);
        });
    }

    private clearButtons() {
        this.buttonNodes.forEach(node => {
            if (!node || !node.isValid) {
                return;
            }
            node.off(Node.EventType.TOUCH_END);
            node.destroy();
        });
        this.buttonNodes.length = 0;
    }

    private getBtnPrefab(): Prefab | null {
        if (this.btnPrefab) {
            return this.btnPrefab;
        }
        mLogger.error(this.debugMode, 'HSkillComp', '[HSkillComp] 未绑定 Btn 预制体，请在编辑器中设置 btnPrefab');
        return null;
    }

    private getSkillParent(): Node {
        const layer = smc.map?.MapView?.scene?.entityLayer?.node?.getChildByName('SKILL');
        if (layer && layer.isValid) {
            return layer;
        }
        return this.node;
    }

    private ensureMockCaster(parent: Node, startPos: Vec3): any {
        if (!this.mockCasterNode || !this.mockCasterNode.isValid) {
            this.mockCasterNode = new Node('debug_caster');
            this.mockCasterNode.parent = parent;
            this.mockCasterNode.setScale(v3(1, 1, 1));
            this.mockCasterNode.active = false;
        } else if (this.mockCasterNode.parent !== parent) {
            this.mockCasterNode.parent = parent;
        }
        this.mockCasterNode.setPosition(startPos);
        const mockAttrs = {
            hero_name: '技能调试器',
            ap: 100,
            critical: 0,
            critical_dmg: 50,
            freeze_chance: 0,
            stun_chance: 0,
            back_chance: 0,
            slow_chance: 0,
            puncture: 0,
            puncture_dmg: 0,
            wfuny: 0,
            fac: FacSet.HERO
        };
        const mockEntity = {
            eid: -10086,
            get: () => mockAttrs
        };
        this.mockCasterView = {
            node: this.mockCasterNode,
            box_group: BoxSet.HERO,
            ent: mockEntity
        };
        return this.mockCasterView;
    }

    private playDebugSkill(skillId: number) {
        const conf = SkillSet[skillId];
        if (!conf) {
            return;
        }
        this.destroyCurrentSkill();
        const parent = this.getSkillParent();
        const startPos = v3(-260, -40, 0);
        const targetPos = v3(260, -40, 0);
        const caster = this.ensureMockCaster(parent, startPos);
        const skill = ecs.getEntity<Skill>(Skill);
        skill.load(startPos.clone(), parent, skillId, targetPos, caster, 0);
        this.currentSkill = skill;
    }

    private destroyCurrentSkill() {
        if (!this.currentSkill) {
            return;
        }
        this.currentSkill.destroy();
        this.currentSkill = null;
    }
   
    reset() {
        this.destroyCurrentSkill();
        this.clearButtons();
        if (this.mockCasterNode && this.mockCasterNode.isValid) {
            this.mockCasterNode.destroy();
            this.mockCasterNode = null;
        }
        this.node.destroy();
    }
}