/* test_bgpage.c — 批③ 后台管理页 UI 按钮化 宿主子测（bg_page.c 按钮命中/顶栏清除命中）。
 *
 * 通过 #include bg_page.c 把其 FILE-STATIC 的 bgm_rows/bgm_btn_rect/bgm_row_tap/bgm_top_action
 * 平移进本 TU；桩掉 launcher 后台表（meow_bg_count/at/terminate）+ 时钟 + meow_str/logmsg，
 * 直接验证：
 *   P1 bgm_rows 行骨架：后台 App 行（act=i）+ 空态行（act=-1）；name 经 app_meta 正确；
 *      **行副文本指向 ctx 持久缓冲且扛得住栈抖动**（曾指向 bgm_rows 栈帧 → 真机副标题乱码）；
 *   P2 bgm_btn_rect 按钮几何：行右 46×34 圆角钮（rx+rw-12-46 定位）；
 *   P3 bgm_row_tap 行内命中：**仅按钮区 kill（bgm_terminate 一次），行体/按钮外不误杀**；
 *      **app.json framework=1（SDK 框架 App）照样可杀**（2026-11-04 真机回归）；
 *      受保护/前台行按钮点击 → 不 terminate（门控，留诊断日志）；空态行不响应；
 *   P4 bgm_top_action 顶栏清除：kill_all 不杀受保护/前台、杀普通后台（含 framework=1 的）；
 *   P5 门控矩阵：bgmgr_can_kill（protected_app/is_fg/pid<=0/普通）。
 * 不调用行自绘 bgm_row_draw（纯逻辑），故无需桩 SDK 绘制；行自绘段经 -ffunction-sections/--gc-sections 剔除。
 *
 * 编译（在 patch_v2/meow_launcherd 下）：
 *   gcc -I../sdk -I. -Wall -Wextra -fsanitize=undefined \
 *       -ffunction-sections -fdata-sections test_bgpage.c meow_bgmgr.c \
 *       -Wl,--gc-sections -o test_bgpage
 * 运行：./test_bgpage
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>

#include "meow_launcher_internal.h"
#include "bg_page.c"                     /* FILE-STATIC 函数平移进本 TU */

/* ---------- 桩：launcher 后台表（meow_bgplay 视角） ---------- */
static meow_bg_entry_t g_bg[MEOW_BG_MAX];
static int  g_bg_n;
static int  g_term_calls;
static char g_terminated[16][64];

int  meow_bg_count(void) { return g_bg_n; }
const meow_bg_entry_t *meow_bg_at(int i)
{
    if (i < 0 || i >= g_bg_n) return NULL;
    return &g_bg[i];
}
int  meow_bg_terminate(const char *app_id)
{
    if (g_term_calls < 16) snprintf(g_terminated[g_term_calls++], 64, "%s", app_id);
    return 0;
}
unsigned long long now_ms(void) { return 0; }
const char *meow_str(const char *id) { (void)id; return NULL; }   /* 未知 id → meow_str_zh 回退 zh */
static int g_log_n;
void logmsg(const char *fmt, ...) { (void)fmt; g_log_n++; }   /* 只计数：门控/未命中应留诊断日志 */

/* 栈抖动：bgm_rows 返回后调用，用来暴露「sub 指向栈帧」的悬垂指针。 */
static void stack_clobber(void)
{
    volatile char buf[256];
    memset((void *)buf, 'X', sizeof buf);
    buf[0] = buf[0];   /* 防优化掉 */
}

/* ---------- 测试态：launcher 应用表（app_meta 用） ---------- */
static struct app g_apps[4];

static void set_app(int i, const char *id, const char *name, char fw)
{
    memset(&g_apps[i], 0, sizeof g_apps[i]);
    snprintf(g_apps[i].id, sizeof g_apps[i].id, "%s", id);
    snprintf(g_apps[i].name, sizeof g_apps[i].name, "%s", name);
    g_apps[i].framework = fw;
}

static void bg_reset(int n, const char *id0, pid_t pid0, const char *id1, pid_t pid1)
{
    g_bg_n = n; g_term_calls = 0;
    memset(g_bg, 0, sizeof g_bg);
    if (n >= 1 && id0) {
        g_bg[0].used = 1; snprintf(g_bg[0].app_id, sizeof g_bg[0].app_id, "%s", id0);
        g_bg[0].pid = pid0; g_bg[0].keepalive = 0;
    }
    if (n >= 2 && id1) {
        g_bg[1].used = 1; snprintf(g_bg[1].app_id, sizeof g_bg[1].app_id, "%s", id1);
        g_bg[1].pid = pid1; g_bg[1].keepalive = 0;
    }
}

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

static int term_count_app(const char *app_id)
{
    int c = 0;
    for (int i = 0; i < g_term_calls; i++) if (!strcmp(g_terminated[i], app_id)) c++;
    return c;
}

int main(void)
{
    static bgm_ctx_t b;
    memset(&b, 0, sizeof b);
    b.apps = g_apps; b.napps = 3;
    set_app(0, "os.meow.hello", "播放", 0);
    set_app(1, "dev.player.ncm", "流媒体客户端", '1');   /* SDK 框架 App（真机 app.json framework:1） */
    set_app(2, "os.meow.sysguard", "系统守护", 0);
    static sub_row_t rows[SUB_ROWS_MAX];

    printf("=== P1) bgm_rows 行骨架 + 副文本持久化 ===\n");
    bg_reset(2, "os.meow.hello", 1001, "dev.player.ncm", 7520);
    int rn = bgm_rows(&b, rows, SUB_ROWS_MAX);
    CHECK(rn == 2, "2 后台 App → 2 行（无空态/无清除动作行）");
    CHECK(rows[0].kind == SUB_ROW && rows[0].act == 0, "row0 act=0");
    CHECK(!strcmp(rows[0].label, "播放"), "row0 label=名字(播放)");
    CHECK(rows[1].kind == SUB_ROW && rows[1].act == 1, "row1 act=1");
    CHECK(!strcmp(rows[1].label, "流媒体客户端"), "row1 label=流媒体客户端");
    CHECK(rows[1].sub != NULL && !strncmp(rows[1].sub, "CPU ", 4), "row1 sub=CPU/内存/状态");
    CHECK(b.n == 2, "bgm_ctx.n=2");
    /* 悬垂指针回归：sub 必须落在 ctx 缓冲里，且栈被改写后内容不变 */
    uintptr_t subp = (uintptr_t)rows[1].sub;
    uintptr_t lob  = (uintptr_t)(char *)&b;
    uintptr_t hib  = lob + sizeof b;
    CHECK(subp >= lob && subp < hib, "sub 指向 ctx 持久缓冲（不是 bgm_rows 栈帧）");
    char sub_before[80];
    snprintf(sub_before, sizeof sub_before, "%s", rows[1].sub);
    stack_clobber();
    CHECK(!strcmp(rows[1].sub, sub_before), "栈抖动后 sub 内容不变（无悬垂）");

    printf("=== P2) bgm_btn_rect 按钮几何（行右 46×34） ===\n");
    {
        int bx, by, bw, bh; bgm_btn_rect(0, 0, 480, 56, &bx, &by, &bw, &bh);
        CHECK(bw == 46 && bh == 34, "按钮 46×34");
        CHECK(bx == 480 - 12 - 46, "按钮左缘=行宽-12-46");
        CHECK(by == (56 - 34) / 2, "按钮垂直居中");
    }

    printf("=== P3) bgm_row_tap 行内杀按钮命中（仅按钮区 kill，行区不误杀） ===\n");
    bg_reset(2, "os.meow.hello", 1001, "dev.player.ncm", 7520);
    bgm_rows(&b, rows, SUB_ROWS_MAX);
    /* 按钮区命中：行(0,0,480,56)，按钮 x 422-468, y 11-45 */
    CHECK(bgm_row_tap(&b, 0, &rows[0], 445, 28, 0, 0, 480, 56) == 1, "按钮点击→返回1(重绘)");
    CHECK(term_count_app("os.meow.hello") == 1, "按钮点击→terminate hello 一次");
    /* 行体（按钮左/其下区）命中 → 不 kill */
    CHECK(bgm_row_tap(&b, 0, &rows[0], 200, 28, 0, 0, 480, 56) == 0, "行体点击→返回0(不杀)");
    CHECK(term_count_app("os.meow.hello") == 1, "行体点击→不误杀(仍1次)");
    CHECK(bgm_row_tap(&b, 0, &rows[0], 410, 28, 0, 0, 480, 56) == 0, "按钮左侧缘(410)→不杀");
    CHECK(bgm_row_tap(&b, 0, &rows[0], 475, 28, 0, 0, 480, 56) == 0, "按钮右侧(475)→不杀");
    CHECK(bgm_row_tap(&b, 0, &rows[0], 445, 60, 0, 0, 480, 56) == 0, "按钮下方(60)→不杀");
    /* 回归（2026-11-04 真机「杀后台按钮按下去没反应」）：dev.player.ncm 的 app.json 写 framework:1
     * （= 用 SDK 框架，现有 App 全写 1），**必须照杀**——旧实现把它当受保护位，按钮置灰点不动。 */
    CHECK(b.rows[1].killable == 1, "framework=1（SDK 框架）App 仍判可杀");
    CHECK(bgm_row_tap(&b, 1, &rows[1], 445, 28, 0, 0, 480, 56) == 1, "framework=1 App 按钮→返回1");
    CHECK(term_count_app("dev.player.ncm") == 1, "framework=1 App 按钮→真 terminate（无反应 bug 回归）");
    /* 真·受保护行（未来系统组件/前台）：按钮命中但不 terminate，且留诊断日志 */
    bg_reset(2, "os.meow.hello", 1001, "os.meow.sysguard", 1002);
    bgm_rows(&b, rows, SUB_ROWS_MAX);
    b.rows[1].protected_app = '1';
    g_log_n = 0;
    CHECK(bgm_row_tap(&b, 1, &rows[1], 445, 28, 0, 0, 480, 56) == 1, "受保护行按钮→返回1(重绘)");
    CHECK(term_count_app("os.meow.sysguard") == 0, "受保护行按钮→不 terminate");
    CHECK(g_log_n >= 1, "受保护行按钮→留一行诊断日志（可查「点了没反应」）");

    printf("=== P3b) 空态行不响应 ===\n");
    bg_reset(0, NULL, 0, NULL, 0);
    int rn0 = bgm_rows(&b, rows, SUB_ROWS_MAX);
    CHECK(rn0 == 1 && rows[0].act == -1, "0 后台 App → 1 空态行(act=-1)");
    CHECK(bgm_row_tap(&b, 0, &rows[0], 445, 28, 0, 0, 480, 56) == 0, "空态行点击→返回0(不杀)");
    g_term_calls = 0;

    printf("=== P4) 顶栏清除(一键清除后台)不杀受保护/前台 ===\n");
    bg_reset(2, "os.meow.hello", 1001, "os.meow.sysguard", 1002);
    bgm_rows(&b, rows, SUB_ROWS_MAX);
    b.rows[1].protected_app = '1';
    CHECK(bgm_top_action(&b) == 1, "顶栏清除按钮：返回 1(重绘约定)");
    CHECK(term_count_app("os.meow.hello") == 1, "清除→terminate 普通后台 hello");
    CHECK(term_count_app("os.meow.sysguard") == 0, "清除→不杀受保护 sysguard");
    /* 回归：framework=1 的 SDK 框架 App 也在「一键清」范围内 */
    bg_reset(2, "os.meow.hello", 1001, "dev.player.ncm", 7520);
    bgm_rows(&b, rows, SUB_ROWS_MAX);
    g_term_calls = 0;
    CHECK(bgm_top_action(&b) == 1, "framework=1 App：一键清返回 1");
    CHECK(term_count_app("dev.player.ncm") == 1, "一键清→terminate framework=1 App（回归）");
    /* 前台 App（is_fg）不杀：给 hello 标前台再清 */
    bg_reset(1, "os.meow.hello", 1001, NULL, 0);
    bgm_rows(&b, rows, SUB_ROWS_MAX);
    for (int i = 0; i < b.n; i++) if (!strcmp(b.rows[i].app_id, "os.meow.hello")) b.rows[i].is_fg = 1;
    g_term_calls = 0;
    CHECK(bgm_top_action(&b) == 1, "前台 App 仍在：顶栏清除返回 1(重绘)");
    CHECK(g_term_calls == 0, "前台 App → kill_all 不杀(0 terminate)");
    CHECK(bgm_top_action(&b) == 1, "二次清除(仍前台/不可杀)：返回 1");
    CHECK(g_term_calls == 0, "二次清除 → 仍不 terminate");

    printf("=== P5) 门控矩阵（bgmgr_can_kill） ===\n");
    {
        bgmgr_row_t r; memset(&r, 0, sizeof r);
        r.pid = 5; CHECK(bgmgr_can_kill(&r) == 1, "普通后台可杀");
        r.protected_app = '1'; CHECK(bgmgr_can_kill(&r) == 0, "protected_app 不可杀");
        r.protected_app = 0; r.is_fg = 1; CHECK(bgmgr_can_kill(&r) == 0, "前台不可杀");
        r.is_fg = 0; r.pid = 0; CHECK(bgmgr_can_kill(&r) == 0, "pid<=0 不可杀");
    }

    if (g_fails == 0) printf("\nALL PASS (%d checks)\n", g_checks);
    else printf("\n%d FAILED\n", g_fails);
    return g_fails ? 1 : 0;
}