/*
 * test_sdk_input_keys.c — M2.55 宿主验证：SDK 输入层接管系统按键语义（App 前台也生效）。
 *
 * 覆盖（直接调输入层语义函数，等效"模拟按键事件"）：
 *   K1 音量 +/step：audio.volume 迈一步（volume_step 约束），settings.conf 落到值改变；
 *   K2 音量 ± clamp：volume_max 软上限、0 下限、硬上限 100；到限不再写；
 *   K3 保留其它键：改 audio.volume 不整文件 O_TRUNC（display.brightness/注释保留）；
 *   K4 媒体键本地回调：注册 playctl 回调后，sys_key(上一曲/下一曲/播放暂停) → 回调 cmd 正确
 *      （播放/暂停恒发 toggle(6)，SDK 不再本地判 state——走自有 IPC 线程的源不经 SDK meta
 *      上报，本地 state 恒 0 会恒发「播放」致播放中按键无效；源侧按当前态翻转）；
 *   K5 媒体键 IPC 兜底：未注册回调（g_cb==NULL）→ 走 IPC 发 launcher（无 socket → 静默不崩）。
 *
 * 编译（宿主 gcc，仅链 vol/media 两个 TU；无需 meow_ui 其它子系统）：
 *   gcc -Wall -Wextra -pthread -o test_sdk_input_keys test_sdk_input_keys.c \
 *       meow_ui_vol.c meow_ui_media.c -I. -I../meow_launcherd
 */
#include "meow_ui_vol.h"
#include "meow_ui_media.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>

static int failures = 0;
static void check(const char *name, int cond)
{
    printf("%s %s\n", cond ? "PASS" : "FAIL", name);
    if (!cond) failures++;
}

static char g_path[64];
static void wfile(const char *content)
{
    FILE *f = fopen(g_path, "w");
    if (!f) { perror("fopen"); exit(2); }
    fputs(content, f);
    fclose(f);
}
static int vol_in_file(void)
{
    return meow_ui_vol_read(g_path, "audio.volume", -1);
}

/* —— 媒体回调捕获 —— */
static int cb_calls = 0, cb_cmd = 0;
static int64_t cb_seek = 0;
static void playctl_cb(int cmd, int64_t seek_ms)
{ cb_calls++; cb_cmd = cmd; cb_seek = seek_ms; }

int main(void)
{
    snprintf(g_path, sizeof g_path, "/tmp/meow_kb_%d.conf", (int)getpid());
    char sock[64];   /* 指向不存在路径：让 IPC 兜底路径确定性静默失败 */
    snprintf(sock, sizeof sock, "/tmp/meow_kb_%d.sock", (int)getpid());
    setenv("MEOW_IPC_SOCK", sock, 1);

    /* ---- K1 音量迈一步（volume_step=1 默认）---- */
    wfile("audio.volume = 60\naudio.volume_max = 100\naudio.volume_step = 1\n");
    check("K1 vol 60 +1 -> 61", meow_ui_vol_step(g_path, +1) == 61);
    check("K1 settings.conf 落到 61", vol_in_file() == 61);
    check("K1 vol 61 -1 -> 60", meow_ui_vol_step(g_path, -1) == 60);
    check("K1 settings.conf 回到 60", vol_in_file() == 60);

    /* ---- K2 步进 volume_step=4 + clamp ---- */
    wfile("audio.volume = 60\naudio.volume_max = 100\naudio.volume_step = 4\n");
    check("K2 step=4: 60 +1 -> 64", meow_ui_vol_step(g_path, +1) == 64);
    wfile("audio.volume = 99\naudio.volume_max = 100\naudio.volume_step = 4\n");
    check("K2 step=4: 99 +1 -> 100 (硬上限)", meow_ui_vol_step(g_path, +1) == 100);

    /* volume_max 软上限 */
    wfile("audio.volume = 60\naudio.volume_max = 55\naudio.volume_step = 1\n");
    meow_ui_vol_step(g_path, +1);
    check("K2 volume_max=55: vol -> 55 (clamp 上限)", vol_in_file() == 55);

    /* 到上限不再写 */
    wfile("audio.volume = 100\naudio.volume_max = 100\naudio.volume_step = 1\n");
    check("K2 at hard max: +1 -> 100 (no write)", meow_ui_vol_step(g_path, +1) == 100);
    wfile("audio.volume = 0\naudio.volume_max = 100\naudio.volume_step = 1\n");
    check("K2 at min: -1 -> 0 (no write)", meow_ui_vol_step(g_path, -1) == 0);
    check("K2 at min settings 保持 0", vol_in_file() == 0);

    /* ---- K3 保留其它键（不整文件 O_TRUNC）---- */
    wfile("# meow-settings 1\ndisplay.brightness = 100\naudio.volume = 60\n");
    meow_ui_vol_step(g_path, +1);
    check("K3 vol 60 -> 61", vol_in_file() == 61);
    check("K3 保留其它键 display.brightness=100",
          meow_ui_vol_read(g_path, "display.brightness", -1) == 100);

    /* ---- K5 媒体键 IPC 兜底：未注册回调 → 走 IPC（无 socket 静默不崩）---- */
    cb_calls = 0;
    meow_ui_media_sys_key(165);   /* 上一曲：g_cb==NULL 走 IPC 兜底，不崩 */
    check("K5 未注册回调不崩", cb_calls == 0);

    /* ---- K4 媒体键本地回调：注册后按 cmd 分发 ---- */
    meow_ui_media_on_playctl(playctl_cb);
    meow_ui_media_sys_key(165);   /* 上一曲 */
    check("K4 上一曲(165) -> cb(3)", cb_calls == 1 && cb_cmd == 3 && cb_seek == 0);
    meow_ui_media_sys_key(163);   /* 下一曲 */
    check("K4 下一曲(163) -> cb(4)", cb_calls == 2 && cb_cmd == 4);
    meow_ui_media_sys_key(19);    /* 旧码上一曲 */
    check("K4 旧码(19) -> cb(3)", cb_calls == 3 && cb_cmd == 3);

    /* 播放/暂停物理键恒发 toggle(6)：与最近上报 state 无关（源侧按当前态翻转） */
    meow_ui_media_meta(1, 0, 0, "t", "a", "al", NULL, NULL);   /* state=PLAYING */
    meow_ui_media_sys_key(164);
    check("K4 播放中按播放/暂停 -> cb(6) toggle", cb_calls == 4 && cb_cmd == 6);
    meow_ui_media_meta(2, 0, 0, "t", "a", "al", NULL, NULL);   /* state=PAUSED */
    meow_ui_media_sys_key(164);
    check("K4 暂停中按播放/暂停 -> cb(6) toggle", cb_calls == 5 && cb_cmd == 6);
    meow_ui_media_meta(0, 0, 0, "t", "a", "al", NULL, NULL);   /* state=STOPPED */
    meow_ui_media_sys_key(164);
    check("K4 停止中按播放/暂停 -> cb(6) toggle", cb_calls == 6 && cb_cmd == 6);

    meow_ui_media_stop();

    unlink(g_path);
    unlink(sock);

    printf("\n%s (%d failure%s)\n", failures ? "RESULT: FAIL" : "RESULT: PASS",
           failures, failures == 1 ? "" : "s");
    return failures ? 1 : 0;
}