/** memory-profile 配置（Tier-0/1/3），由 DeviceCapability 按运行时设备能力映射 */
export type MemoryTierId = 'tier0' | 'tier1' | 'tier3';

export interface MemoryTierConfig {
    hallPreloadDelaySec: number;
    idleIconsDelaySec: number;
    idleLongTailSec: number;
    enableLowMemoryDowngrade: boolean;
    enableTabBundleUnloadOnBattle: boolean;
    /** 切 Tab 时卸载非当前 Tab bundle（tier3 关闭保流畅） */
    enableTabBundleUnloadOnSwitch: boolean;
    /** silent 预载队列：同档最多并行任务数（bundle/ui 独立项） */
    silentPreloadParallel: number;
    /** silent 队列每帧时间预算（ms），与 ThermalGovernor hallLoadBudgetScale 相乘 */
    silentBudgetMs: number;
    /** silent 定时器间隔（ms），与主循环无关 */
    silentDownloadGapMs: number;
    /** 大厅 idle 后是否预载 HallWarmLongTailRes */
    enableHallWarmLongTail: boolean;
    /** 退战保留 BattleRes 与战斗分包，供下一局复用（段位高频局；低端机关） */
    enableBattleResRetain: boolean;
}

export const MEMORY_PROFILE = {
    defaultTier: 'tier0' as MemoryTierId,
    tiers: {
        tier0: {
            hallPreloadDelaySec: 0,
            idleIconsDelaySec: 0,
            idleLongTailSec: 3,
            enableLowMemoryDowngrade: true,
            enableTabBundleUnloadOnBattle: true,
            enableTabBundleUnloadOnSwitch: true,
            silentPreloadParallel: 1,
            silentBudgetMs: 4,
            silentDownloadGapMs: 120,
            enableHallWarmLongTail: false,
            enableBattleResRetain: false,
        },
        tier1: {
            hallPreloadDelaySec: 0,
            idleIconsDelaySec: 0,
            idleLongTailSec: 3,
            enableLowMemoryDowngrade: true,
            enableTabBundleUnloadOnBattle: true,
            enableTabBundleUnloadOnSwitch: true,
            silentPreloadParallel: 1,
            silentBudgetMs: 6,
            silentDownloadGapMs: 60,
            enableHallWarmLongTail: true,
            enableBattleResRetain: true,
        },
        tier3: {
            hallPreloadDelaySec: 1,
            idleIconsDelaySec: 0,
            idleLongTailSec: 3,
            enableLowMemoryDowngrade: false,
            enableTabBundleUnloadOnBattle: true,
            enableTabBundleUnloadOnSwitch: true,
            silentPreloadParallel: 2,
            silentBudgetMs: 12,
            silentDownloadGapMs: 30,
            enableHallWarmLongTail: true,
            enableBattleResRetain: true,
        },
    } satisfies Record<MemoryTierId, MemoryTierConfig>,
};