/* test_wd_fw.c — 宿主单测：meow_watchdog 的「SDK 框架 App 判定」逻辑（M2.86, issue 226）。
 *
 * 编译：#include meow_watchdog.c（去 main 拿 wd_app_is_framework/wd_json_str/wd_framework_from_pid）。
 *   gcc -Wall -Wextra -Os -DWd_NO_MAIN -Wno-unused-function -Wno-unused-parameter \
 *       test_wd_fw.c -o test_wd_fw
 *   （meow_watchdog.c 含仅 main 使用的静态函数，宿主去 main 后须 -Wno-unused-function 静音；
 *     mips 目标构建不定义 WD_NO_MAIN，不受影响。）
 * 运行：./test_wd_fw；全 PASS -> exit 0。
 */
#define WD_NO_MAIN
#include "meow_watchdog.c"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>

static int g_pass = 0, g_fail = 0;

static void check(const char *name, int got, int want)
{
    if (got == want) { g_pass++; printf("PASS %s\n", name); }
    else { g_fail++; printf("FAIL %s: got %d want %d\n", name, got, want); }
}

/* ---- M2.87：SIGUSR1 手势让位（handle_touch 左缘滑动分支）----
 * 判定（meow_watchdog.c）：`!g_fw_app && immersive` 才发 SIGUSR1（只给裸沉浸 App）；
 * SDK 框架 App（g_fw_app=1）不发（返回由 SDK on_swipe 处理），防 SIGUSR1 杀死 App。 */
static volatile int g_sigusr1_hits = 0;
static void on_sigusr1(int s) { (void)s; g_sigusr1_hits++; }

/* 经 handle_touch 模拟一次「左缘起点+向右滑」完整手势（press→release），返回 SIGUSR1 命中数。 */
static int sim_swipe_sigusr1(int fw, int immersive)
{
    g_fw_app = fw;
    g_sigusr1_hits = 0;
    last_x = 5; last_y = 300;                 /* 左缘原点（x<EDGE_W=24） */
    unsigned long long now = now_ms();
    handle_touch(immersive, getpid(), now - 3000, 1);  /* press（过冷却期 + 坐标就绪） */
    last_x = 100;                              /* 向右滑 95px（>SWIPE_DX=50） */
    handle_touch(immersive, getpid(), now - 3000, 0);  /* release */
    return g_sigusr1_hits;
}

/* 在 <base>/<name> 建目录并写 app.json；写失败返回 -1。 */
static int fixture(const char *base, const char *name, const char *appjson)
{
    char dir[512], path[560];
    snprintf(dir, sizeof dir, "%s/%s", base, name);
    if (mkdir(dir, 0755) != 0 && access(dir, F_OK) != 0) return -1;
    snprintf(path, sizeof path, "%s/app.json", dir);
    FILE *f = fopen(path, "w");
    if (!f) return -1;
    fputs(appjson, f);
    fclose(f);
    return 0;
}

static int expect_fw(const char *base, const char *name, const char *appjson, int want)
{
    char dir[512];
    snprintf(dir, sizeof dir, "%s/%s", base, name);
    if (fixture(base, name, appjson) != 0) { g_fail++; printf("FAIL %s: cannot write fixture\n", name); return 0; }
    char label[256];
    snprintf(label, sizeof label, "is_fw(%s)", name);
    check(label, wd_app_is_framework(dir), want);
    return 1;
}

int main(void)
{
    signal(SIGUSR1, on_sigusr1);   /* 捕获 handle_touch 可能发出的 SIGUSR1（测命中） */
    char dir[] = "/tmp/wdfwXXXXXX";
    if (!mkdtemp(dir)) { perror("mkdtemp"); return 2; }

    /* 框架 App：各值形态 */
    expect_fw(dir, "v_num",  "{\"name\":\"x\",\"framework\":1,\"exec\":\"/a/b\"}", 1);        /* JSON 数值 1 */
    expect_fw(dir, "v_true", "{\"name\":\"x\",\"framework\":true}", 1);                     /* true */
    expect_fw(dir, "v_yes",  "framework=yes", 1);                                           /* 扁平 yes */
    expect_fw(dir, "v_str",  "{\"framework\":\"true\"}", 1);                                /* 字符串 "true" */
    expect_fw(dir, "v_space","{\"name\":\"x\", \"framework\" :  1 }", 1);                    /* 空格容错 */

    /* 非框架 App */
    expect_fw(dir, "v_zero", "{\"name\":\"x\",\"framework\":0}", 0);                         /* 数值 0 */
    expect_fw(dir, "v_false","{\"framework\":false}", 0);                                    /* false */
    expect_fw(dir, "v_none", "{\"name\":\"x\",\"exec\":\"/a/b\"}", 0);                       /* 无 framework 键 */
    expect_fw(dir, "v_sub",  "{\"x_framework\":1}", 0);                                      /* 键前缀歧义：不误判 */

    /* 多行 JSON（framework 单独一行，值独立） */
    expect_fw(dir, "multiline",
              "{\n  \"name\": \"x\",\n  \"framework\": 1,\n  \"exec\": \"/a/b\"\n}\n", 1);

    /* wd_json_str 直接断言（防 "myframework" / 前缀干扰） */
    {
        char out[16] = "";
        check("json_str exact", wd_json_str("{\"framework\":1}", "framework", out, sizeof out) > 0 &&
                                !strcmp(out, "1"), 1);
        check("json_str prefix-reject",
              wd_json_str("{\"x_framework\":1}", "framework", out, sizeof out), 0);
        check("json_str no-hit", wd_json_str("{\"name\":\"x\"}", "framework", out, sizeof out), 0);
    }

    /* wd_framework_from_pid：自进程 /proc/self/exe 目录无 app.json -> 0，不崩 */
    check("from_pid(no app.json)", wd_framework_from_pid(getpid()), 0);

    /* ---- M2.87 SIGUSR1 让位判定（仅裸沉浸 App 发 SIGUSR1）---- */
    check("sigusr1 fw-app (framework=1) -> 0", sim_swipe_sigusr1(1, 1), 0);   /* SDK 框架 App：不发 */
    check("sigusr1 bare-immersive -> 1",       sim_swipe_sigusr1(0, 1), 1);   /* 裸沉浸：发（命中） */
    check("sigusr1 bare-nonimmersive -> 0",    sim_swipe_sigusr1(0, 0), 0);   /* 裸非沉浸：不发 */

    /* 清理 */
    {
        char path[560];
        const char *names[] = { "v_num","v_true","v_yes","v_str","v_space","v_zero",
                                "v_false","v_none","v_sub","multiline" };
        for (unsigned i = 0; i < sizeof names / sizeof names[0]; i++) {
            snprintf(path, sizeof path, "%s/%s/app.json", dir, names[i]); unlink(path);
            snprintf(path, sizeof path, "%s/%s", dir, names[i]); rmdir(path);
        }
        rmdir(dir);
    }

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