/* test_meow_ui_home_gesture.c — 批② SDK 全局「App 内底部热区上滑回桌面」宿主验证。
 *
 * 覆盖（并同 meow_ui_input_is_home_swipe 判据、touch_release 分类、meow_ui_run 分发三层）：
 *   T1 判定矩阵（meow_ui_input_is_home_swipe，镜像 launcher np_gesture.h np_home_gesture）：
 *      底部热区上滑=1；底部左缘上滑=0（左缘返回互斥）；中部上滑=0（App 滚动）；底部横向=0；
 *      底部下滑=0；上移不足=0；横向主导=0；屏底边界（down_y=fb_h-HOME_EDGE_H）之外=0。
 *   T2 触摸状态机分类（真实 touch_release → 队列 pop 断言）：
 *      底部热区上滑→MEOW_EV_HOME（a=MEOW_SWIPE_UP）；中部上滑→MEOW_EV_SWIPE(UP)（不被剥回桌面）；
 *      底部左缘横滑→MEOW_EV_SWIPE(LEFT)（原左缘返回，不被剥）。
 *   T3 分发（meow_ui_run 主循环，run-loop 复用 test_meow_ui_view_event 的 driver 线程范式）：
 *      3a 未注册 on_swipe：注入 MEOW_EV_HOME → meow_ui_nav_request_exit 被触发（一次）——回桌面；
 *      3b 未注册 on_swipe：注入 MEOW_EV_SWIPE(UP)（中部上滑）→ nav_request_exit 不触发（App 滚动）；
 *      3c 注册 on_swipe：注入 MEOW_EV_HOME → nav_request_exit 触发（系统级手势优先于 App on_swipe），
 *         on_swipe 不被调用——屏底热区上滑是系统保留手势，任意 App 内生效（用户 2026-09-04 批②）。
 *
 * 编译（宿主 gcc，链真实 SDK 源全集 + 打桩 font/global；**不链 meow_ui_nav.c**——本测以测试内
 *      meow_ui_nav_request_exit 桩计数验证触发）：
 *   gcc -Wall -Wextra -o test_meow_ui_home_gesture test_meow_ui_home_gesture.c test_host_stub.c \
 *       meow_ui_gfx.c meow_ui_sys.c meow_ui_theme.c meow_ui_vol.c meow_ui_log.c \
 *       meow_ui_widget.c meow_ui_input.c meow_ui_activity.c meow_ui_dialog.c meow_ui_ime.c meow_ui_str.c \
 *       meow_pinyin.c meow_ui_draw.c meow_ui_view.c meow_ui_box.c meow_ui_anim.c meow_ui_scroll.c \
 *       meow_ui_img.c meow_ui_media.c meow_notify_ipc.c stb_image.c \
 *       -I. -I../meow_launcherd -DMEOW_UI_HOST_TEST -pthread -lm
 * 运行：./test_meow_ui_home_gesture
 */
#include "meow_ui.h"
#include "meow_ui_internal.h"   /* meow_input_touch_set/move/release + meow_input_pop + MEOW_EV_* */
#include "meow_ui_nav.h"        /* meow_ui_nav_request_exit 原型（本测以桩计数验证） */

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <assert.h>

/* MEOW_EV_HOME 是 meow_ui_input.c 内部常量（未入公共头，同 MEOW_EV_NOTIF_PULL 惯例），按同值声明。 */
#ifndef MEOW_EV_HOME
#define MEOW_EV_HOME 9
#endif

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

/* fb 高度（宿主 480x720） */
#define FBW 480
#define FBH 720
/* 判据常量镜像（np_gesture.h NP_HOME_EDGE_H=28 / NP_HOME_SWIPE=65 / NP_EDGE_W=24）。 */
#define H_EDGE 28
#define H_SWIPE 65
#define EDGE_W 24

/* ---- nav_request_exit 桩（不链 meow_ui_nav.c；计数验证 SDK 触发） ---- */
static int g_nav_exit_calls = 0;
void meow_ui_nav_request_exit(void) { g_nav_exit_calls++; }

/* ---- on_swipe 桩（App 接管验证） ---- */
static int g_swipe_calls = 0;
static int g_swipe_dir = -1;
static int g_swipe_dx = 0;
static void app_on_swipe(int dir, int dx, int dy) { (void)dy; g_swipe_calls++; g_swipe_dir = dir; g_swipe_dx = dx; }

/* 从队列 pop 一个事件并回填 (type,a,b)；无事件返回 0。 */
static int pop_ev(int *type, int *a, int *b)
{
    meow_input_ev e;
    if (!meow_input_pop(&e)) return 0;
    *type = e.type; *a = e.a; *b = e.b;
    return 1;
}

/* ============ T1 判定矩阵（meow_ui_input_is_home_swipe） ============ */
static void test_predicate(void)
{
    printf("T1 meow_ui_input_is_home_swipe matrix\n");
    int bz = FBH - H_EDGE;   /* 底部热区上边界 y = 720-28 = 692 */

    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, 0, -120, FBH) == 1, "T1 bottom-hotzone up -> 1");
    CHECK(meow_ui_input_is_home_swipe(100, FBH - 1, 20, -80, FBH) == 1, "T1 screen-bottom up (x>EDGE_W) -> 1");
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, 0, -H_SWIPE, FBH) == 1, "T1 exactly threshold up -> 1");
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, -30, -70, FBH) == 1, "T1 up w/ small left dx (adx<dy) -> 1");

    /* 左缘互斥（down_x<EDGE_W） */
    CHECK(meow_ui_input_is_home_swipe(10, bz + 10, 0, -120, FBH) == 0, "T1 left-edge origin -> 0 (edge-back reserved)");
    /* 中部上滑（App 滚动） */
    CHECK(meow_ui_input_is_home_swipe(240, 300, 0, -120, FBH) == 0, "T1 mid-screen up -> 0 (App scroll)");
    /* 底部横向（左缘返回/横向逻辑保留） */
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, 120, 0, FBH) == 0, "T1 bottom horizontal -> 0");
    /* 底部下滑 */
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, 0, 120, FBH) == 0, "T1 bottom down -> 0");
    /* 上移不足（<H_SWIPE） */
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, 0, -(H_SWIPE - 1), FBH) == 0, "T1 up below threshold -> 0");
    /* 竖向未主导（横向位移≥上移量，adx>=dy） */
    CHECK(meow_ui_input_is_home_swipe(240, bz + 10, -120, -80, FBH) == 0, "T1 up w/ big dx (not vertical-dominant) -> 0");
    /* 热区边界之外（down_y < bz） */
    CHECK(meow_ui_input_is_home_swipe(240, bz - 1, 0, -120, FBH) == 0, "T1 just above hotzone -> 0");
}

/* ============ T2 触摸状态机分类（touch_release → 队列） ============ */
static void test_touch_classify(void)
{
    printf("T2 touch_release classification\n");
    meow_input_drain();

    /* 底部热区上滑 → MEOW_EV_HOME */
    meow_input_touch_set(1, 240, FBH - 5, 0);       /* 起点 y=715 ∈ [692,720) */
    meow_input_touch_move(240, FBH - 5 - 130);      /* 上移 130 */
    meow_input_touch_release();
    {
        int t, a, b;
        CHECK(pop_ev(&t, &a, &b) == 1 && t == MEOW_EV_HOME && a == MEOW_SWIPE_UP,
              "T2 bottom-hotzone up -> MEOW_EV_HOME(UP) got type=%d a=%d", t, a);
    }

    /* 中部上滑 → 普通 MEOW_EV_SWIPE(UP)（不被剥回桌面） */
    meow_input_touch_set(1, 240, 300, 0);
    meow_input_touch_move(240, 300 - 130);
    meow_input_touch_release();
    {
        int t, a, b;
        CHECK(pop_ev(&t, &a, &b) == 1 && t == MEOW_EV_SWIPE && a == MEOW_SWIPE_UP,
              "T2 mid up -> SWIPE(UP) got type=%d a=%d", t, a);
    }

    /* 底部左缘横滑 → 原有左缘返回（不被剥） */
    meow_input_touch_set(1, 5, FBH - 5, 0);
    meow_input_touch_move(5 + 100, FBH - 5);
    meow_input_touch_release();
    {
        int t, a, b;
        CHECK(pop_ev(&t, &a, &b) == 1 && t == MEOW_EV_SWIPE && a == MEOW_SWIPE_LEFT,
              "T2 bottom-left horizontal -> SWIPE(LEFT) got type=%d a=%d", t, a);
    }
}

/* ============ T3 分发（meow_ui_run 主循环） ============ */
static int g_inj_type, g_inj_a, g_inj_b;
static void *driver(void *arg)
{
    (void)arg;
    usleep(700000);   /* 等 startup cooldown(500ms) 过后再注入 */
    meow_input_inject(g_inj_type, g_inj_a, g_inj_b);
    usleep(80000);
    meow_ui_request_exit();
    return NULL;
}

static void run_scenario(int inj_type, int inj_a, int inj_b, int register_swipe)
{
    g_inj_type = inj_type; g_inj_a = inj_a; g_inj_b = inj_b;
    g_nav_exit_calls = 0;
    g_swipe_calls = 0; g_swipe_dir = -1; g_swipe_dx = 0;
    meow_input_drain();   /* 防上一次残留事件影响本次分发 */

    meow_ui_events ev; memset(&ev, 0, sizeof ev);
    if (register_swipe) ev.on_swipe = app_on_swipe;

    pthread_t thd; pthread_create(&thd, NULL, driver, NULL);
    meow_ui_run(&ev);
    pthread_join(thd, NULL);
}

static void test_dispatch(void)
{
    printf("T3 meow_ui_run dispatch (home = nav_request_exit fallback)\n");

    /* 3a 未注册 on_swipe：底部热区上滑 → nav_request_exit 触发一次（回桌面） */
    run_scenario(MEOW_EV_HOME, MEOW_SWIPE_UP, 120, 0);
    CHECK(g_nav_exit_calls == 1, "T3a no-on_swipe MEOW_EV_HOME -> nav_request_exit fired (got %d)", g_nav_exit_calls);
    CHECK(g_swipe_calls == 0, "T3a no-on_swipe -> on_swipe NOT called");

    /* 3b 未注册 on_swipe：中部上滑（普通 MEOW_EV_SWIPE UP）→ nav_request_exit 不触发（App 滚动） */
    run_scenario(MEOW_EV_SWIPE, MEOW_SWIPE_UP, 120, 0);
    CHECK(g_nav_exit_calls == 0, "T3b mid-swipe-up -> nav_request_exit NOT fired (App scroll), got %d", g_nav_exit_calls);

    /* 3c 注册 on_swipe：底部热区上滑 → 系统优先，nav_request_exit 触发（回桌面），on_swipe 不被调用 */
    run_scenario(MEOW_EV_HOME, MEOW_SWIPE_UP, 120, 1);
    CHECK(g_nav_exit_calls == 1, "T3c on_swipe registered -> nav_request_exit STILL fired (system gesture wins), got %d", g_nav_exit_calls);
    CHECK(g_swipe_calls == 0, "T3c system-priority home -> on_swipe NOT called");
}

int main(void)
{
    meow_ui_opts o = { FBW, FBH };
    if (meow_ui_init(&o) != 0) { printf("init failed\n"); return 1; }

    test_predicate();
    test_touch_classify();
    test_dispatch();

    meow_ui_shutdown();
    printf("home_gesture: %d pass / %d fail\n", g_pass, g_fail);
    return g_fail ? 1 : 0;
}