/* test_overlay_gate.c — §310 三连 bug 的**纯决策**宿主单测（overlay_gate.h + lock_screen.h 谓词）。
 *
 * 覆盖三个症状对应的关闭/恢复决策，不依赖信号/设备/文件系统：
 *   S1 锁屏期触摸不穿透        → overlay_drain_required()：App 被 SIGSTOP 过（非保活）必须在
 *                                unlink /tmp/meow_notif_active 前先 SIGCONT + 排窗，让 SDK 输入线程
 *                                排空冻结期缓冲的 evdev 事件副本；OVERLAY_DRAIN_WINDOW_MS > SDK 200ms 节流。
 *   S2 解锁状态栏恢复          → overlay_force_sb_resync()：解锁后必须强制 g_sb_mode_last=-1 重叠加，
 *                                不等 app 循环 1s 慢刷（消除「解锁回 App 无状态栏」残留）。
 *   S3 App 死亡触发主屏重绘    → lock_overlay_app_died_exit()：锁屏叠加期 App 崩溃（僵尸）必须走
 *                                统一退出路径（交回 waitpid 循环回收 + run_menu 重绘主屏含状态栏）。
 *   S1b 未冻结 App 输入被排    → overlay_keepalive_needs_grab()：媒体保活 App（保持运行、SDK 输入
 *                                线程实时读 evdev）在锁屏期必须靠 launcher EVIOCGRAB 独占触控设备 +
 *                                标记让 SDK 排空——而非冻结 App 的 SIGCONT 排空（drain_required=0）。
 *   S1c 手动息屏触发锁屏      → overlay_wake_should_lock()：超时息屏（auto_slept）与电源键手动息屏
 *                                （watchdog blank → manual_panel_off）两类唤醒都须走 lock 语义。
 *   S2b 锁屏重铺盖 App 残帧    → OVERLAY_LOCK_COVER_MS：锁屏进场后重铺全屏不透明底的阈值必须
 *                                > SDK present 抑制标记节流窗（200ms），盖住 App 抑制窗内的残帧。
 *   S4  锁屏页自睡（294 遗留） → overlay_lock_idle_off_sec()：阈值 = min(系统 screen_off_timeout, 30s)
 *                                （0/超30→30，尊重更短）；overlay_lock_should_sleep()/overlay_lock_wake_now()
 *                                判定超时灭屏（锁态保持）与唤醒回锁屏。
 *
 * 编译运行（在 patch_v2/meow_launcherd 下，无其它依赖）：
 *   gcc -Wall -Wextra -o test_overlay_gate test_overlay_gate.c && ./test_overlay_gate
 * 全 PASS -> exit 0。
 */
#include <stdio.h>
#include "overlay_gate.h"
#include "lock_screen.h"

static int g_pass = 0, g_fail = 0;
#define CHECK(cond, msg) do { \
    if (cond) { g_pass++; printf("PASS %s\n", msg); } \
    else { g_fail++; printf("FAIL %s\n", msg); } \
} while (0)

int main(void)
{
    /* ---- S1 输入穿透：SIGSTOP 过的 App 关闭时必须先排空再 unlink ---- */
    CHECK(overlay_drain_required(0) == 1, "S1 drain required (app was SIGSTOP/frozen)");
    CHECK(overlay_drain_required(1) == 0, "S1 no drain needed (media keep-alive, never stopped)");
    /* 排空窗必须大于 SDK overlay_input_suppressed 的 200ms 标记节流窗，保证恢复后确实重新 stat 到
     * 标记再整批丢弃缓冲事件；此处断言契约不被踩线。 */
    CHECK(OVERLAY_DRAIN_WINDOW_MS > 200, "S1 drain window > SDK 200ms throttle");

    /* ---- S1b 未冻结（媒体保活）App 输入被排：靠 EVIOCGRAB 独占隔离，非 SIGCONT 排空 ----
     * 保活 App 从不 SIGSTOP（保 PCM），SDK 输入线程实时读 evdev；launcher 只能靠 EVIOCGRAB 独占
     * 触控设备（真机 goodix 已证 EVIOCGRAB 返回 0）使任何前台进程锁屏期收不到触摸。 */
    CHECK(overlay_keepalive_needs_grab(1) == 1, "S1b keep-alive app needs EVIOCGRAB isolation");
    CHECK(overlay_keepalive_needs_grab(0) == 0, "S1b frozen app -> SIGCONT drain, not grab");
    /* 保活 App 隔离与冻结 App 排空互斥：一条路径而非两条。 */
    CHECK(overlay_drain_required(1) == 0 && overlay_keepalive_needs_grab(1) == 1,
          "S1b keep-alive: grab path (drain==0)");
    CHECK(overlay_drain_required(0) == 1 && overlay_keepalive_needs_grab(0) == 0,
          "S1b frozen: drain path (grab==0)");

    /* ---- S2 解锁状态栏恢复：必须强制重同步 ---- */
    CHECK(overlay_force_sb_resync() == 1, "S2 force status bar re-sync after unlock");

    /* ---- S2b 锁屏重铺盖 App 残帧（问题2-②）：阈值必须 > SDK present 抑制窗(200ms) ---- */
    CHECK(OVERLAY_LOCK_COVER_MS > 200, "S2b lock re-cover ms > SDK suppression window (200ms)");
    CHECK(OVERLAY_LOCK_COVER_MS == 300, "S2b lock re-cover ms = 300 (marker-window margin)");

    /* ---- S1c 手动息屏触发锁屏（问题1）：超时(auto_slept)与手动(manual_panel_off)唤醒都锁 ---- */
    CHECK(overlay_wake_should_lock(0, 0) == 0, "S1c wake, no sleep -> no lock");
    CHECK(overlay_wake_should_lock(1, 0) == 1, "S1c timeout sleep (auto) -> lock");
    CHECK(overlay_wake_should_lock(0, 1) == 1, "S1c manual power sleep (manual) -> lock (was missing)");
    CHECK(overlay_wake_should_lock(1, 1) == 1, "S1c both -> lock");

    /* ---- S4 锁屏页自睡（294 遗留）：阈值 min(系统,30s)，超时灭屏锁态保持，唤醒回锁屏 ---- */
    CHECK(overlay_lock_idle_off_sec(0) == 30, "S4 system 0 (never) -> lock caps 30s");
    CHECK(overlay_lock_idle_off_sec(-1) == 30, "S4 system absent -> lock caps 30s");
    CHECK(overlay_lock_idle_off_sec(30) == 30, "S4 system 30 -> 30");
    CHECK(overlay_lock_idle_off_sec(60) == 30, "S4 system 60 -> 30 (cap, shorter)");
    CHECK(overlay_lock_idle_off_sec(10) == 10, "S4 system 10 -> 10 (respect shorter)");
    CHECK(overlay_lock_idle_off_sec(1) == 1, "S4 system 1 -> 1 (respect shorter)");
    CHECK(overlay_lock_should_sleep(1, 30000, 30000) == 1, "S4 idle>=off & screen on -> self sleep");
    CHECK(overlay_lock_should_sleep(1, 29999, 30000) == 0, "S4 idle<off -> not yet");
    CHECK(overlay_lock_should_sleep(0, 99999, 30000) == 0, "S4 screen off -> no re-sleep");
    CHECK(overlay_lock_wake_now(1, 0) == 1, "S4 power edge -> wake to lock");
    CHECK(overlay_lock_wake_now(0, 1) == 1, "S4 touch -> wake to lock");
    CHECK(overlay_lock_wake_now(0, 0) == 0, "S4 no wake input -> stay asleep");

    /* ---- S3 App 死亡触发主屏重绘：崩溃必须走统一退出路径 ---- */
    CHECK(lock_overlay_app_died_exit(1) == 1, "S3 app died -> unified exit path (redraw home)");
    CHECK(lock_overlay_app_died_exit(0) == 0, "S3 app alive -> normal restore");

    /* ---- §310 锁屏叠加期中止谓词（lock_screen.h 纯判定）---- */
    CHECK(lck_overlay_should_abort(0, 0) == 0, "S3 abort=0 (menu lock, no overlay pid)");
    CHECK(lck_overlay_should_abort(0, 1) == 0, "S3 abort=0 (no overlay pid, zombie ignored)");
    CHECK(lck_overlay_should_abort(4321, 0) == 0, "S3 abort=0 (overlay pid, app alive)");
    CHECK(lck_overlay_should_abort(4321, 1) == 1, "S3 abort=1 (overlay pid + zombie -> abort lock)");

    printf("\n%s (%d passed, %d failed)\n", g_fail ? "SOME TESTS FAILED" : "ALL PASS", g_pass, g_fail);
    return g_fail ? 1 : 0;
}