import {
    Button, Color, Label, Layout, Mask, Node, ScrollView, Sprite, UITransform, Widget,
    HorizontalTextAlignment, VerticalTextAlignment, Layers, Overflow,
} from 'cc';
import { SpriteLoad } from '../../mx/components/SpriteLoad';
import type { IGmContentPanel, IGmPanelContext } from '../../mx/module/gm';
import { GmRegistry } from '../../mx/module/gm';
import { GBundle, GPath } from '../game/ConfigRes';
import { TableNames } from '../game/ConfigTableData';
import { RankDataManager } from '../manager/RankDataManager';
import { ProjectGmActions } from './ProjectGmActions';
import { GmSaveEditorPanel } from './ProjectGmSavePanel';

/** 本项目内容面板 id */
export const ProjectGmPanelId = {
    itemPicker: 'itemPicker',
    buffPicker: 'buffPicker',
    levelPicker: 'levelPicker',
    rankPicker: 'rankPicker',
    saveEditor: 'saveEditor',
} as const;

/**
 * buffPicker 面板数据。
 */
export interface IGmBuffPickerData {
    /** 1=主动 2=被动；0=不限 */
    expectType: number;
    /** 写入目标 */
    mode: 'carryPassive' | 'aiActive' | 'aiPassive';
}

/**
 * 创建文字按钮。
 */
function makeLabelBtn(parent: Node, text: string, w: number, h: number, onClick: () => void): Node {
    const n = new Node('btn');
    n.layer = Layers.Enum.UI_2D;
    n.addComponent(UITransform).setContentSize(w, h);
    const lb = n.addComponent(Label);
    lb.string = text;
    lb.fontSize = 22;
    lb.color = Color.WHITE;
    lb.horizontalAlign = HorizontalTextAlignment.CENTER;
    lb.verticalAlign = VerticalTextAlignment.CENTER;
    n.addComponent(Button);
    n.on(Button.EventType.CLICK, onClick, null);
    parent.addChild(n);
    return n;
}

/**
 * 垂直滚动列表宿主。
 */
function makeVScroll(parent: Node, w: number, h: number): { host: Node; content: Node } {
    const host = new Node('scroll');
    host.layer = Layers.Enum.UI_2D;
    host.addComponent(UITransform).setContentSize(w, h);
    const view = new Node('view');
    view.layer = Layers.Enum.UI_2D;
    view.addComponent(UITransform).setContentSize(w, h);
    view.addComponent(Mask);
    host.addChild(view);
    const content = new Node('content');
    content.layer = Layers.Enum.UI_2D;
    const cut = content.addComponent(UITransform);
    cut.setContentSize(w, h);
    cut.setAnchorPoint(0.5, 1);
    content.setPosition(0, h / 2);
    const layout = content.addComponent(Layout);
    layout.type = Layout.Type.VERTICAL;
    layout.resizeMode = Layout.ResizeMode.CONTAINER;
    layout.spacingY = 4;
    layout.paddingTop = 4;
    view.addChild(content);
    const sv = host.addComponent(ScrollView);
    sv.content = content;
    sv.horizontal = false;
    sv.vertical = true;
    parent.addChild(host);
    return { host, content };
}

/**
 * 道具图标点选 + 数量步进。
 */
class GmItemPickerPanel implements IGmContentPanel {
    private _root: Node | null = null;
    private _selectedId = 0;
    private _qty = 1;
    private _lbSel: Label | null = null;

    open(parent: Node, ctx: IGmPanelContext): void {
        this.close();
        const pUt = parent.getComponent(UITransform);
        const W = pUt?.width || 660;
        const H = pUt?.height || 900;

        this._root = new Node('itemPicker');
        this._root.layer = Layers.Enum.UI_2D;
        this._root.addComponent(UITransform).setContentSize(W, H);
        const rw = this._root.addComponent(Widget);
        rw.isAlignLeft = rw.isAlignRight = rw.isAlignTop = rw.isAlignBottom = true;
        rw.left = rw.right = rw.top = rw.bottom = 0;
        parent.addChild(this._root);

        const tip = new Node('tip');
        tip.layer = Layers.Enum.UI_2D;
        tip.addComponent(UITransform).setContentSize(W - 24, 40);
        const tl = tip.addComponent(Label);
        tl.string = '点图标立刻 +1 · 底部可一次 +10/+100';
        tl.fontSize = 22;
        tl.color = new Color(255, 196, 72, 255);
        tl.horizontalAlign = HorizontalTextAlignment.CENTER;
        tip.setPosition(0, H / 2 - 28);
        this._root.addChild(tip);

        const barH = 120;
        const scrollH = H - 80 - barH;
        const { host, content } = makeVScroll(this._root, W - 16, scrollH);
        host.setPosition(0, barH / 2 - 10);

        const items = gg.data.table.getTableList<ITableItem>(TableNames.Item) ?? [];
        items.sort((a, b) => Number(a.id) - Number(b.id));
        const cell = 80;
        const cols = Math.max(4, Math.floor((W - 24) / (cell + 6)));
        let rowNode: Node | null = null;
        for (let i = 0; i < items.length; i++) {
            if (i % cols === 0) {
                rowNode = new Node(`row${i}`);
                rowNode.layer = Layers.Enum.UI_2D;
                rowNode.addComponent(UITransform).setContentSize(W - 24, cell);
                const lay = rowNode.addComponent(Layout);
                lay.type = Layout.Type.HORIZONTAL;
                lay.spacingX = 6;
                content.addChild(rowNode);
            }
            const row = items[i];
            const cellN = new Node(`i${row.id}`);
            cellN.layer = Layers.Enum.UI_2D;
            cellN.addComponent(UITransform).setContentSize(cell - 4, cell - 4);
            const sp = cellN.addComponent(Sprite);
            sp.sizeMode = Sprite.SizeMode.CUSTOM;
            const loader = cellN.addComponent(SpriteLoad);
            if (row.icon) loader.setSprite(GPath.Item(row.icon), GBundle.Items);
            cellN.addComponent(Button);
            const id = Number(row.id);
            const name = row.name ?? '';
            cellN.on(Button.EventType.CLICK, () => {
                this._selectedId = id;
                ProjectGmActions.addItemNum(id, 1);
                this._qty = gg.data.getItemNum(id);
                this._paint();
                ctx.host.toast(`${name} +1 → ${this._qty}`);
            }, this);
            rowNode!.addChild(cellN);
        }
        content.getComponent(Layout)?.updateLayout();

        const bar = new Node('bar');
        bar.layer = Layers.Enum.UI_2D;
        bar.addComponent(UITransform).setContentSize(W - 16, barH - 16);
        bar.setPosition(0, -H / 2 + barH / 2);
        this._root.addChild(bar);

        this._lbSel = (() => {
            const sel = new Node('sel');
            sel.layer = Layers.Enum.UI_2D;
            sel.addComponent(UITransform).setContentSize(W - 40, 28);
            const lb = sel.addComponent(Label);
            lb.fontSize = 20;
            lb.color = new Color(180, 220, 255, 255);
            lb.horizontalAlign = HorizontalTextAlignment.CENTER;
            lb.overflow = Overflow.SHRINK;
            sel.setPosition(0, 28);
            bar.addChild(sel);
            return lb;
        })();
        makeLabelBtn(bar, '+10', 100, 44, () => {
            if (!this._selectedId) {
                ctx.host.toast('先点一个图标');
                return;
            }
            ProjectGmActions.addItemNum(this._selectedId, 10);
            this._qty = gg.data.getItemNum(this._selectedId);
            this._paint();
        }).setPosition(-160, -16);

        makeLabelBtn(bar, '+100', 100, 44, () => {
            if (!this._selectedId) {
                ctx.host.toast('先点一个图标');
                return;
            }
            ProjectGmActions.addItemNum(this._selectedId, 100);
            this._qty = gg.data.getItemNum(this._selectedId);
            this._paint();
        }).setPosition(-40, -16);

        makeLabelBtn(bar, '返回', 120, 44, () => {
            ctx.refreshList();
            ctx.goBack();
        }).setPosition(120, -16);

        this._paint();
    }

    close(): void {
        if (this._root?.isValid) this._root.destroy();
        this._root = null;
        this._lbSel = null;
    }

    private _paint(): void {
        if (this._lbSel) {
            this._lbSel.string = this._selectedId
                ? `最近：${this._selectedId} 持有 ${gg.data.getItemNum(this._selectedId)}`
                : '点图标立刻 +1';
        }
    }
}

/**
 * BUFF 列表点选。
 */
class GmBuffPickerPanel implements IGmContentPanel {
    private _root: Node | null = null;

    open(parent: Node, ctx: IGmPanelContext): void {
        this.close();
        const data = ctx.command.panelData as IGmBuffPickerData;
        if (!data?.mode) {
            console.warn('[GM] buffPicker 缺少 panelData');
            ctx.host.toast('面板配置错误');
            ctx.goBack();
            return;
        }

        this._root = new Node('buffPicker');
        this._root.layer = Layers.Enum.UI_2D;
        this._root.addComponent(UITransform).setContentSize(660, 900);
        parent.addChild(this._root);

        const title = new Node('t');
        title.layer = Layers.Enum.UI_2D;
        title.addComponent(UITransform).setContentSize(600, 36);
        const tl = title.addComponent(Label);
        tl.string = ctx.command.title;
        tl.fontSize = 26;
        tl.color = Color.WHITE;
        tl.horizontalAlign = HorizontalTextAlignment.CENTER;
        title.setPosition(0, 420);
        this._root.addChild(title);

        const { host, content } = makeVScroll(this._root, 640, 700);
        host.setPosition(0, 20);

        const list = gg.data.table.getTableList<ITableBattlebuff>(TableNames.Battlebuff) ?? [];
        list.sort((a, b) => Number(a.id) - Number(b.id));
        for (let i = 0; i < list.length; i++) {
            const row = list[i];
            const t = Math.floor(Number((row as { type?: number }).type) || 0);
            if (data.expectType > 0 && t !== data.expectType) continue;
            const id = Number(row.id);
            const label = `${id} ${row.name ?? ''} (t${t})`;
            makeLabelBtn(content, label, 620, 44, () => {
                if (data.mode === 'carryPassive') ProjectGmActions.setPassiveCarry(id);
                else if (data.mode === 'aiActive') ProjectGmActions.setAiBuffIds([id], true);
                else ProjectGmActions.setAiBuffIds([id], false);
                ctx.refreshList();
                ctx.goBack();
            });
        }
        makeLabelBtn(content, '清除覆盖/空', 620, 44, () => {
            if (data.mode === 'carryPassive') {
                ctx.host.toast('被动携带请选具体 id');
                return;
            }
            ProjectGmActions.setAiBuffIds(null, data.mode === 'aiActive');
            ctx.refreshList();
            ctx.goBack();
        });
        content.getComponent(Layout)?.updateLayout();

        makeLabelBtn(this._root, '返回', 140, 44, () => ctx.goBack()).setPosition(0, -400);
    }

    close(): void {
        if (this._root?.isValid) this._root.destroy();
        this._root = null;
    }
}

/**
 * 关卡列表点选。
 */
class GmLevelPickerPanel implements IGmContentPanel {
    private _root: Node | null = null;

    open(parent: Node, ctx: IGmPanelContext): void {
        this.close();
        this._root = new Node('levelPicker');
        this._root.layer = Layers.Enum.UI_2D;
        this._root.addComponent(UITransform).setContentSize(660, 900);
        parent.addChild(this._root);

        const title = new Node('t');
        title.layer = Layers.Enum.UI_2D;
        title.addComponent(UITransform).setContentSize(600, 36);
        const tl = title.addComponent(Label);
        tl.string = ctx.command.title;
        tl.fontSize = 26;
        tl.color = Color.WHITE;
        tl.horizontalAlign = HorizontalTextAlignment.CENTER;
        title.setPosition(0, 420);
        this._root.addChild(title);

        const { host, content } = makeVScroll(this._root, 640, 700);
        host.setPosition(0, 20);

        makeLabelBtn(content, '0 关闭固定(随机)', 620, 44, () => {
            ProjectGmActions.setFixedMap(0);
            ctx.refreshList();
            ctx.goBack();
        });

        const list = gg.data.table.getTableList<ITableLevel>(TableNames.Level) ?? [];
        list.sort((a, b) => Number(a.id) - Number(b.id));
        for (let i = 0; i < list.length; i++) {
            const row = list[i];
            const id = Number(row.id);
            const name = row.name ?? '';
            makeLabelBtn(content, `${id} ${name}`, 620, 44, () => {
                ProjectGmActions.setFixedMap(id);
                ctx.refreshList();
                ctx.goBack();
            });
        }
        content.getComponent(Layout)?.updateLayout();
        makeLabelBtn(this._root, '返回', 140, 44, () => ctx.goBack()).setPosition(0, -400);
    }

    close(): void {
        if (this._root?.isValid) this._root.destroy();
        this._root = null;
    }
}

/**
 * 段位点选 + 星级步进。
 */
class GmRankPickerPanel implements IGmContentPanel {
    private _root: Node | null = null;
    private _rankId = 1;
    private _star = 1;
    private _lb: Label | null = null;

    open(parent: Node, ctx: IGmPanelContext): void {
        this.close();
        this._rankId = RankDataManager.getPlayerRankId() || 1;
        this._star = RankDataManager.getIntraTierStars() || 1;

        this._root = new Node('rankPicker');
        this._root.layer = Layers.Enum.UI_2D;
        this._root.addComponent(UITransform).setContentSize(660, 900);
        parent.addChild(this._root);

        const title = new Node('t');
        title.layer = Layers.Enum.UI_2D;
        title.addComponent(UITransform).setContentSize(600, 36);
        const tl = title.addComponent(Label);
        tl.string = ctx.command.title;
        tl.fontSize = 26;
        tl.color = Color.WHITE;
        tl.horizontalAlign = HorizontalTextAlignment.CENTER;
        title.setPosition(0, 420);
        this._root.addChild(title);

        const cur = new Node('cur');
        cur.layer = Layers.Enum.UI_2D;
        cur.addComponent(UITransform).setContentSize(600, 36);
        this._lb = cur.addComponent(Label);
        this._lb.fontSize = 24;
        this._lb.color = Color.YELLOW;
        this._lb.horizontalAlign = HorizontalTextAlignment.CENTER;
        cur.setPosition(0, 360);
        this._root.addChild(cur);

        const { host, content } = makeVScroll(this._root, 640, 480);
        host.setPosition(0, 40);

        const list = gg.data.table.getTableList<ITableRank>(TableNames.Rank) ?? [];
        list.sort((a, b) => Number(a.id) - Number(b.id));
        for (let i = 0; i < list.length; i++) {
            const row = list[i];
            const id = Number(row.id);
            const name = row.name ?? '';
            makeLabelBtn(content, `${id} ${name}`, 620, 44, () => {
                this._rankId = id;
                this._paint();
            });
        }
        content.getComponent(Layout)?.updateLayout();

        makeLabelBtn(this._root, '星-1', 100, 40, () => {
            this._star = Math.max(1, this._star - 1);
            this._paint();
        }).setPosition(-160, -260);
        makeLabelBtn(this._root, '星+1', 100, 40, () => {
            this._star = Math.min(5, this._star + 1);
            this._paint();
        }).setPosition(-40, -260);

        makeLabelBtn(this._root, '应用', 120, 44, () => {
            ProjectGmActions.setRankAndStar(this._rankId, this._star);
            ctx.refreshList();
            ctx.goBack();
        }).setPosition(100, -260);

        makeLabelBtn(this._root, '返回', 120, 44, () => ctx.goBack()).setPosition(0, -320);
        this._paint();
    }

    close(): void {
        if (this._root?.isValid) this._root.destroy();
        this._root = null;
        this._lb = null;
    }

    private _paint(): void {
        if (this._lb) this._lb.string = `段位 ${this._rankId}  星 ${this._star}`;
    }
}

/**
 * 注册本项目内容面板。
 */
export class ProjectGmPanels {
    private static _done = false;

    /** 幂等注册 */
    static ensureRegistered(): void {
        if (this._done) return;
        this._done = true;
        GmRegistry.registerPanel(ProjectGmPanelId.itemPicker, () => new GmItemPickerPanel());
        GmRegistry.registerPanel(ProjectGmPanelId.buffPicker, () => new GmBuffPickerPanel());
        GmRegistry.registerPanel(ProjectGmPanelId.levelPicker, () => new GmLevelPickerPanel());
        GmRegistry.registerPanel(ProjectGmPanelId.rankPicker, () => new GmRankPickerPanel());
        GmRegistry.registerPanel(ProjectGmPanelId.saveEditor, () => new GmSaveEditorPanel());
    }
}