import { Node, sp } from 'cc';
import type { BattleSession } from 'db://assets/mx/module/battle';
import type { MapManager } from '../map/legacy/MapManager';
import type { MapGrid } from '../map/legacy/MapGrid';

/** 芭蕉扇：单阵营攻击站立格（阵营区域 + 站立格） */
export interface BajiaoCampStand {
    campAreaId: number;
    standGrid: MapGrid;
}

/** 受击闪白：取攻击点节点下首个可见 Spine（唐僧 / 江流儿等） */
export function resolveWallHitFlashSpine(hitTarget: Node | null | undefined): sp.Skeleton | null {
    if (!hitTarget?.isValid) return null;
    for (const sk of hitTarget.getComponentsInChildren(sp.Skeleton)) {
        if (sk?.isValid && sk.node.activeInHierarchy) return sk;
    }
    return null;
}

/** wallTarget1 攻击站立格（与寻路 attackTargets 一致，勿用唐僧当前 worldPosition） */
export function resolveWallTarget1StandGrid(map: MapManager): MapGrid | null {
    const wallNode = map.mapTargetParent?.getChildByName('wallTarget1');
    if (!wallNode) return null;
    for (const [grid, node] of map.allAttackPointGrids) {
        if (node === wallNode) return grid;
    }
    return map.findNearestWalkableGridForTarget(wallNode.worldPosition);
}

/** 指定阵营区域的攻击站立格（多目标地图按 campAreaId 区分） */
export function resolveAttackStandGridForCamp(
    map: MapManager,
    session: BattleSession,
    campAreaId: number,
): MapGrid | null {
    const targets = session.topology.getAttackTargetsForCampArea(campAreaId);
    if (targets.length > 0) {
        const grid = map.getMapGrid(targets[0].row, targets[0].col);
        if (grid) return grid;
    }
    return resolveWallTarget1StandGrid(map);
}

/**
 * 收集芭蕉扇各阵营图标锚点。
 * 单阵营仍用 wallTarget1；多阵营每营一个攻击站立格。
 */
export function collectBajiaoCampStands(map: MapManager, session: BattleSession): BajiaoCampStand[] {
    const topo = session.topology;
    if (!topo.attackTargets.length) {
        const stand = resolveWallTarget1StandGrid(map);
        if (!stand) return [];
        const campId = topo.attackTargetCampArea[0] ?? topo.getSpawnPortCampArea(1) ?? 1;
        return [{ campAreaId: campId, standGrid: stand }];
    }
    if (!topo.hasMultipleCampAreas()) {
        const stand = resolveWallTarget1StandGrid(map);
        if (!stand) return [];
        const campId = topo.attackTargetCampArea[0] ?? topo.getSpawnPortCampArea(1) ?? 1;
        return [{ campAreaId: campId, standGrid: stand }];
    }
    const out: BajiaoCampStand[] = [];
    for (const campId of topo.getDistinctCampAreaIds()) {
        const stand = resolveAttackStandGridForCamp(map, session, campId);
        if (stand) out.push({ campAreaId: campId, standGrid: stand });
    }
    return out;
}

/** @deprecated 新产品无唐僧求救 */
export function syncTangSengAudioCell(_map: MapManager | null | undefined): void {
}