/* test_key_router_vol.c — 宿主单测：launcher-UI 页物理键统一路由（KEY_ROUTER_UNIFY P1）。
 *
 * 测「key_router 自身的音量编排」——它只产「音量边沿 + 原始 held + ramp 状态」，
 * 由调用页决定 settings_volume_adj(±step) / 光标导航 / ramp 推进。本测用内存桩：
 *   - kp_poll/kp_open/kp_is_down → 注入 raw 键位矩阵到 key_router 的静态 kp_keys.cur[]；
 *   - kd_tick → 用 keys.c 的真实现（40ms 防抖，V4 依赖）；keys.c 内 kp_open/kp_poll/
 *     kp_is_down/meow_volpage_armed 用宏重命名避开真实 ioctl 与桩冲突；
 *   - settings_volume_adj/settings_volume_step/vol_ramp_dir/vol_ramp_tick → 内存桩；
 *   - now_ms → 假时钟（手动推进，40ms 防抖可瞬时测）；
 *   - meow_ui_activity_* → 内存桩（V5 嵌套：真语义=纯静态数组，桩复刻）。
 *
 * 断言：
 *   V1 音量减边沿 → settings_volume_adj(-step) 恰一次 + last_input 复位；
 *   V2 同会话重复（同 raw 仍按住）→ 不再触发 settings_volume_adj；
 *   V3 长按 held → vol_ramp_tick 被驱动（vol_ramp_dir!=0，held=正确方向 raw）；松开 → dir=0；
 *   V4 40ms 防抖：raw 在 40ms 内抖动 → 不产边沿；稳定按下 ≥40ms → 才产边沿；
 *   V5 嵌套返回：page_enter(0x53)→page_exit(0x53)→page_enter(0x55)，基线重播后 held 键不产假边沿；
 *   V6 meow_volpage_armed() → 音量边沿被抑制（不下发，不调 settings_volume_adj）。
 *
 * 编译（在 patch_v2/meow_launcherd 下）：
 *   gcc -Wall -Wextra -I../sdk -I. -ffunction-sections -fdata-sections \
 *       -Wl,--gc-sections test_key_router_vol.c -o test_key_router_vol
 *   ./test_key_router_vol
 */
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdint.h>

/* ---- 假时钟 ---- */
static unsigned long long g_now = 100000;
unsigned long long now_ms(void) { return g_now; }
static void advance_ms(unsigned long long d) { g_now += d; }

/* ---- 音量机外部符号桩（key_router 依赖）---- */
int settings_volume_step = 5;
static int g_adj_count = 0, g_adj_delta = 0;
int vol_ramp_dir = 0;                       /* 桩全局：模拟 audio.c 的 ramp 状态 */
static int g_tick_count = 0, g_tick_held = -1;

void settings_volume_adj(int delta)
{
    g_adj_count++; g_adj_delta = delta;
    if (delta > 0) vol_ramp_dir = 1; else if (delta < 0) vol_ramp_dir = -1;
}

int vol_ramp_tick(int key_held)
{
    g_tick_count++; g_tick_held = key_held;
    if (!key_held) vol_ramp_dir = 0;
    return vol_ramp_dir != 0;
}

static int g_volpage = 0;                   /* 桩：meow_volpage_armed */

/* ---- keys.c 内 kp_open/kp_poll/kp_is_down/meow_volpage_armed 用宏重命名，避开真实 ioctl ----
 *     （宏在 #include keys.c 前生效，仅重命名 keys.c 体内的调用/定义） ---- */
#define kp_open          kp_open_rt_
#define kp_poll          kp_poll_rt_
#define kp_is_down       kp_is_down_rt_
#define meow_volpage_armed meow_volpage_armed_rt_
#include "keys.c"   /* 真 kd_tick（40ms 防抖素材） */
#undef kp_open
#undef kp_poll
#undef kp_is_down
#undef meow_volpage_armed

/* host 桩声明（key_router.c 需要；恢复到正常名，与 keys.c 被更名后的定义不冲突） */
struct keypoll;
int kp_open(struct keypoll *kp, const char *dev);
int kp_poll(struct keypoll *kp, int (*cb)(int code, int down, void *ctx), void *ctx);
int kp_is_down(const struct keypoll *k, int code);
int meow_volpage_armed(void);

#include "key_router.c"   /* 同 TU #include：拿到静态 kp_keys/kp_power/kd_vold/kd_volu + 全部函数 */
#include "key_router.h"

/* ---- meow_ui_activity_* 桩（复刻 sdk/meow_ui_activity.c：纯静态数组，真语义）---- */
static int g_act[32]; static int g_act_n = 0;
void meow_ui_activity_push(int id) { if (g_act_n < 32) g_act[g_act_n++] = id; }
void meow_ui_activity_pop(void)    { if (g_act_n > 0) g_act_n--; }
int  meow_ui_activity_active(void) { return g_act_n > 0 ? g_act[g_act_n - 1] : 0; }

/* ---- 注入 raw 到 key_router 静态 kp_keys ---- */
static void set_vol(int vold, int volu)
{
    for (int w = 0; w < KEYBUF_WORDS; w++) kp_keys.cur[w] = 0;
    if (vold) kp_keys.cur[KEY_VOLUMEDOWN / 32] |= (1UL << (KEY_VOLUMEDOWN % 32));
    if (volu) kp_keys.cur[KEY_VOLUMEUP / 32]   |= (1UL << (KEY_VOLUMEUP % 32));
}

/* ---- host 桩：kp_*（prev=cur 模拟真实 poll 的键位更新）+ meow_volpage_armed ---- */
int kp_open(struct keypoll *kp, const char *dev)
{ (void)dev; memset(kp, 0, sizeof *kp); kp->ok = 1; return 0; }
int kp_poll(struct keypoll *kp, int (*cb)(int, int, void *), void *ctx)
{
    (void)cb; (void)ctx;
    for (int w = 0; w < KEYBUF_WORDS; w++) kp->prev[w] = kp->cur[w];
    return 0;
}
int kp_is_down(const struct keypoll *k, int code)
{ return (k->cur[code / 32] >> (code % 32)) & 1; }
int meow_volpage_armed(void) { return g_volpage; }

/* 其它全局桩（keys.c 内被更名函数引用；本测 GC 后不保留，仅满足声明一致性） */
uint32_t menu_bg = 0;
int screen_off_timeout = 0, screen_off_mode = 0, power_longpress_menu_ms = 0;
int power_forceoff_ms = 0, refresh_rate_cfg = 60, refresh_always_max = 0;

void logmsg(const char *fmt, ...) { (void)fmt; }

static int g_fails = 0;
#define CHECK(cond, name) do { \
    if (cond) printf("  PASS %s\n", name); \
    else { printf("  FAIL %s (%s:%d)\n", name, __FILE__, __LINE__); g_fails++; } } while (0)

static void reset_router(void)
{
    set_vol(0, 0);
    key_router_rebase();
    g_adj_count = 0; g_adj_delta = 0; g_tick_count = 0; g_tick_held = -1;
    vol_ramp_dir = 0; g_volpage = 0;
    g_act_n = 0;
}

/* 按下并稳定：register(pump) → hold ≥40ms → pump(stable=1, 边沿)。 */
static key_evt_t press_settle(int vold, int volu)
{
    set_vol(vold, volu);
    key_router_pump();          /* 登记 raw 跳变（防抖窗口起点） */
    advance_ms(50);             /* ≥KEY_DEBOUNCE_MS(40) */
    return key_router_pump();   /* stable→1，边沿 */
}

/* 抬起并稳定：register(pump) → → pump(stable=0)。 */
static key_evt_t release_settle(void)
{
    set_vol(0, 0);
    key_router_pump();          /* 登记 release */
    advance_ms(50);
    return key_router_pump();   /* stable→0 */
}

int main(void)
{
    unsigned long long last_input = 0;

    /* ---- V1 音量减边沿 → settings_volume_adj(-step) 恰一次 + last_input 复位 ---- */
    reset_router();
    set_vol(0, 0); advance_ms(10); key_router_pump();   /* 全抬起基线 */
    last_input = 0;
    key_evt_t ev = press_settle(1, 0);
    CHECK(ev.vol_dn_edge == 1, "V1 vol-down edge fires");
    key_router_default_volume(&ev, &last_input);
    CHECK(g_adj_count == 1 && g_adj_delta == -settings_volume_step,
          "V1 vol-down -> settings_volume_adj(-step) exactly once");
    CHECK(last_input == g_now, "V1 last_input reset on edge");

    /* ---- V2 同会话重复（同 raw 仍按住）→ 不再触发 ---- */
    reset_router();
    set_vol(0, 0); advance_ms(10); key_router_pump();
    ev = press_settle(1, 0);
    CHECK(ev.vol_dn_edge == 1, "V2a press edge fires");
    ev = key_router_pump();          /* 同 raw 仍按住，无新边沿 */
    CHECK(ev.vol_dn_edge == 0, "V2 held: no re-trigger edge");
    key_router_default_volume(&ev, &last_input);
    CHECK(g_adj_count == 0, "V2 held: no double settings_volume_adj");

    /* ---- V3 长按 held → vol_ramp_tick 被驱动（held=正确方向 raw）；松开 → dir=0 ---- */
    reset_router();
    set_vol(0, 0); advance_ms(10); key_router_pump(); last_input = 0;
    ev = press_settle(1, 0);         /* 按下（vol down）并转稳定 */
    key_router_default_volume(&ev, &last_input);
    CHECK(g_tick_count == 1 && g_tick_held == ev.vol_held_dn && vol_ramp_dir != 0,
          "V3 hold vol-down -> ramp driven with held=raw down");
    advance_ms(50);
    ev = key_router_pump();          /* 继续长按（raw=1 仍按住） */
    key_router_default_volume(&ev, &last_input);
    CHECK(g_tick_count == 2 && g_tick_held == 1, "V3 long-press continues ramp");
    ev = release_settle();           /* 松开：raw held 立即为 0 */
    key_router_default_volume(&ev, &last_input);
    CHECK(vol_ramp_dir == 0, "V3 release -> ramp dir 0 (stops)");

    /* ---- V4 40ms 防抖：raw 在 40ms 内抖动不产边沿；稳定 ≥40ms 才产 ---- */
    reset_router();
    set_vol(0, 0); advance_ms(10); key_router_pump();
    set_vol(1, 0); advance_ms(20); key_router_pump();   /* 按下未满 40ms */
    set_vol(0, 0); advance_ms(20); key_router_pump();   /* 40ms 内又抬起 */
    ev = key_router_pump();
    CHECK(ev.vol_dn_edge == 0, "V4 <40ms jitter -> no edge");
    ev = press_settle(1, 0);                             /* 稳定按下 ≥40ms */
    CHECK(ev.vol_dn_edge == 1, "V4 stable >=40ms press -> edge");
    ev = release_settle();                               /* 抬起稳定 */
    CHECK(ev.vol_dn_edge == 0 && ev.vol_up_edge == 0, "V4 released -> no residual edge");
    ev = press_settle(0, 1);                             /* 稳定按音量加 */
    CHECK(ev.vol_up_edge == 1, "V4 vol-up stable press -> up edge");

    /* ---- V5 嵌套返回：page_enter/exit 重播基线，held 键不产假边沿 ---- */
    reset_router();
    meow_ui_activity_push(0x55); key_router_page_enter(0x55);   /* 主菜单 */
    set_vol(0, 0); advance_ms(10); key_router_pump();
    ev = press_settle(1, 0);
    CHECK(ev.vol_dn_edge == 1, "V5a press edge in menu");
    /* 嵌套进设置页：压栈 + 登记 */
    meow_ui_activity_push(0x53); key_router_page_enter(0x53);
    CHECK(meow_ui_activity_active() == 0x53, "V5b settings active sentinel");
    ev = release_settle();                               /* 设置页内把键抬起 */
    CHECK(ev.vol_dn_edge == 0, "V5c settings-up: no fresh edge (consumer)");
    /* 设置页返回（模拟 run_settings_page 结束）：弹栈 + 重播基线 → m_prev=当前 raw(0) */
    key_router_page_exit(0x53); meow_ui_activity_pop();
    key_router_page_enter(0x55);
    CHECK(meow_ui_activity_active() == 0x55, "V5d menu active again");
    /* 主菜单基线已重播；再次按下应为新边沿，而非残留/双发 */
    ev = press_settle(1, 0);
    CHECK(ev.vol_dn_edge == 1, "V5e fresh press after nest return -> single edge");

    /* ---- V6 meow_volpage_armed() → 音量边沿被抑制（不下发）---- */
    reset_router();
    set_vol(0, 0); advance_ms(10); key_router_pump();
    g_volpage = 1;
    ev = press_settle(1, 0);
    CHECK(ev.vol_dn_edge == 0, "V6 volpage armed -> edge suppressed");
    key_router_default_volume(&ev, &last_input);
    CHECK(g_adj_count == 0, "V6 volpage armed -> settings_volume_adj NOT called");
    g_volpage = 0;

    printf("\nRESULT: %s (%d fails)\n", g_fails ? "FAIL" : "ALL PASS", g_fails);
    return g_fails ? 1 : 0;
}