/* test_bg_keep.c — 批①`background_keepalive` 声明层宿主单测。
 *
 * 验证 meow_parse_app_json 对 app.json 后台三位（background / background_audio /
 * background_keepalive）的解析与 meow_acct_sync 透传，重点覆盖**前缀不串扰**：
 *   - "background_keepalive":true → a->background_keepalive=='1'；且 background/background_audio
 *     在该行不被误命中（分别是 0/0）；
 *   - background:true → a->background=='1'（独立键匹配不受影响）；
 *   - background_audio:true → a->background_audio=='1'；
 *   - 一行三键并存：三者各归其位；
 *   - meow_acct_sync 透传 background_keepalive 到注册表。
 * 实现手法同 test_fg_act.c：真实 include app_launcher.c，-ffunction-sections -Wl,--gc-sections
 * 只保留 parseInt/acct_sync/upsert/find 触及函数；json_str/meow_parse_depends/logmsg 由本文件提供
 * 忠实桩（json_str 复刻 util.c 语义，含键前缀独立 ident_ch + 整体 UTF-8 截断）。
 *
 * 运行（patch_v2/meow_launcherd 下）：
 *   gcc -D_GNU_SOURCE -Wall -Wextra -ffunction-sections -Wl,--gc-sections \
 *       -I. -o test_bg_keep test_bg_keep.c && ./test_bg_keep
 * 全 PASS -> exit 0。
 */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>

/* ---- logmsg：app_launcher.c 依赖，minimal 桩 ---- */
void logmsg(const char *fmt, ...)
{
    (void)fmt;
}

/* ---- json_str：复刻 util.c 语义（键前缀独立 + 值提取 + UTF-8 截断）---- */
static int ident_ch(char c)
{
    return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
           (c >= '0' && c <= '9') || c == '_' || c == '.';
}
static void utf8_trim(char *s)
{
    size_t n = strlen(s), i = 0, last_good = 0;
    while (i < n) {
        unsigned char c = (unsigned char)s[i];
        int len = (c < 0x80) ? 1 : (c >= 0xF0) ? 4 : (c >= 0xE0) ? 3 : (c >= 0xC0) ? 2 : 1;
        if (i + (size_t)len > n) break;
        i += (size_t)len;
        last_good = i;
    }
    s[last_good] = '\0';
}
int json_str(const char *buf, const char *key, char *out, int olen)
{
    out[0] = 0;
    if (!buf || !key || olen <= 0) return 0;
    const char *p = strstr(buf, key);
    if (!p) return 0;
    if (p > buf && ident_ch((unsigned char)p[-1])) return 0;   /* 键前缀需独立 */
    p += strlen(key);
    if (*p == '"') p++;                 /* JSON 键自身右引号 */
    while (*p && (*p == ':' || *p == '=')) p++;
    while (*p == ' ' || *p == '\t') p++;
    if (*p == '"') p++;                 /* 值左引号 */
    int i = 0;
    while (*p && *p != '"' && *p != ',' && *p != '\n' && *p != '\r' && i < olen - 1)
        out[i++] = *p++;
    out[i] = 0;
    while (i > 0 && (out[i - 1] == ' ' || out[i - 1] == '\t')) out[--i] = 0;
    utf8_trim(out);
    return (int)strlen(out);
}

#include "app_launcher.c"   /* 真实实现：meow_parse_app_json / meow_acct_sync / meow_acct_upsert */

/* meow_parse_depends：本测试 app.json 无 depends 行，桩返回 0（struct meow_dep 此时已可见）。 */
int meow_parse_depends(const char *val, struct meow_dep *deps, int max)
{
    (void)val; (void)deps; (void)max;
    return 0;
}

static int g_fail = 0;
#define CHECK(cond, msg) do { \
    if (!(cond)) { fprintf(stderr, "FAIL: %s (%s:%d)\n", msg, __FILE__, __LINE__); g_fail++; } \
    else fprintf(stderr, "ok: %s\n", msg); \
} while (0)

/* 用一段 app.json 内容解析出 struct app。返回 0=成功。 */
static int parse_json(const char *content, struct app *a)
{
    FILE *f = tmpfile();
    if (!f) return -1;
    fputs(content, f);
    rewind(f);
    memset(a, 0, sizeof *a);
    meow_parse_app_json(f, a);
    fclose(f);
    return 0;
}

int main(void)
{
    /* ---- 1) 单独 background_keepalive:true ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n\"background_keepalive\":true\n}", &a);
        CHECK(a.background_keepalive == '1', "background_keepalive:true -> '1'");
        CHECK(a.background == 0, "keepalive 行不误命中 background (==0)");
        CHECK(a.background_audio == 0, "keepalive 行不误命中 background_audio (==0)");
    }
    /* ---- 2) 单独 background:true ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n\"background\":true\n}", &a);
        CHECK(a.background == '1', "background:true -> '1'（独立键匹配不受影响）");
        CHECK(a.background_keepalive == 0, "background 行不串 to keepalive (==0)");
        CHECK(a.background_audio == 0, "background 行不串 to background_audio (==0)");
    }
    /* ---- 3) 单独 background_audio:true ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n\"background_audio\":true\n}", &a);
        CHECK(a.background_audio == '1', "background_audio:true -> '1'");
        CHECK(a.background == 0, "background_audio 行不误命中 background (==0)");
        CHECK(a.background_keepalive == 0, "background_audio 行不串 to keepalive (==0)");
    }
    /* ---- 4) 三键并存：各归其位（逐行格式，值后跟 , 或换行，同真实 app.json） ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n\"background\":true,\n"
                   "\"background_audio\":true,\n\"background_keepalive\":true\n}", &a);
        CHECK(a.background == '1', "三键并存 background=='1'");
        CHECK(a.background_audio == '1', "三键并存 background_audio=='1'");
        CHECK(a.background_keepalive == '1', "三键并存 background_keepalive=='1'");
    }
    /* ---- 5) 假值 / 前导噪声不应置位 ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n\"background_keepalive\":false,\n"
                   "\"background_audio\":0\n}", &a);
        CHECK(a.background_keepalive == 0, "background_keepalive:false -> 0");
        CHECK(a.background_audio == 0, "background_audio:0 -> 0");
        CHECK(a.background == 0, "无 background 键 -> 0");
    }
    /* ---- 6) meow_acct_sync 透传 ---- */
    {
        struct app a;
        parse_json("{\n\"name\":\"X\",\n\"exec\":\"/usr/bin/x\",\n"
                   "\"background_keepalive\":true,\n\"background_audio\":true\n}", &a);
        meow_acct_sync("dev.test.keep", &a);   /* 以 app_id 建/更注册表项 */
        struct meow_acct *ac = meow_acct_find("dev.test.keep");
        CHECK(ac != NULL, "meow_acct_sync 建注册表项");
        CHECK(ac && ac->background_keepalive == '1', "透传 background_keepalive=='1'");
        CHECK(ac && ac->background_audio == '1', "透传 background_audio=='1'");
        CHECK(ac && ac->background == 0, "透传 background==0");
    }

    if (g_fail) { fprintf(stderr, "\n== %d assertion(s) FAILED ==\n", g_fail); return 1; }
    fprintf(stderr, "\n== test_bg_keep ALL PASS ==\n");
    return 0;
}