/* test_meow_ui_theme.c — 宿主验证 §8.1 顶级主题：MD3 × MIUIx 各 light/dark 四套配色 & 控件形态。
 *
 * 用法：build 后跑 4 次（每次一个 style×mode 组合，dump 一张 PPM）：
 *   for s in 0 1; do for m in 0 1; do
 *     MEOW_UI_DUMP=/tmp/meow_t_${s}_${m}.ppm ./test_meow_ui_theme $s $m
 *   done; done
 *   s: 0=MEOW_STYLE_MD3 1=MEOW_STYLE_MIUIX; m: 0=light 1=dark
 *
 * 编译（宿主 gcc，链真实 gfx/sys/theme/vol/log/widget/input/activity/dialog/ime + 打桩 font/global）：
 *   gcc -o test_meow_ui_theme test_meow_ui_theme.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_draw.c meow_ui_view.c meow_ui_img.c meow_notify_ipc.c stb_image.c \
 *       -I. -I../meow_launcherd -DMEOW_UI_HOST_TEST -pthread -lm
 *
 * 验证要点：四套主题 primary/radius 各不相同（MD3 蓝 / MIUIx 橙 + 更大圆角），
 *      同 style 下 light/dark 的 surface 成对切换；图形用 MEOW_UI_DUMP 导出 PPM 目检。
 */
#include "meow_ui.h"
#include "meow_ui_internal.h"   /* meow_gfx_fill_round / meow_ui_back_buf（真实像素断言） */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

static meow_widget *g_w[16];
static int g_wn = 0;

static void render_sample(const meow_theme *th)
{
    int W = meow_ui_width(), H = meow_ui_height();
    meow_ui_clear(th->bg);

    /* 卡片：surfaceContainerLow 底 + outlineVariant 圆角描边（radius_card） */
    meow_gfx_fill_round(20, 56, W - 40, 132, th->radius_card, th->surfaceContainerLow);
    meow_ui_draw_rect_round(20, 56, W - 40, 132, th->radius_card, th->outlineVariant);
    meow_ui_text(36, 74, "THEME SAMPLE", th->font_title, th->onSurface);
    meow_ui_text(36, 116, "surfaceContainerLow/outline", th->font_body, th->onSurfaceVariant);
    char info[64];
    snprintf(info, sizeof info, "primary=0x%06X radius=%d", th->primary, th->radius);
    meow_ui_text(36, 148, info, th->font_body, th->onSurfaceVariant);

    /* 文字行：onSurface / onSurfaceVariant 对比 */
    meow_ui_text(20, 204, "onSurface text", th->font_body, th->onSurface);
    meow_ui_text(20, 232, "onSurfaceVariant dim", th->font_body, th->onSurfaceVariant);
    meow_ui_text(20, 260, "primary accent", th->font_body, th->primary);

    /* 控件（真实控件走主题 radius/spacing/stroke 形态，meow_widget_draw 内取 meow_theme_get） */
    for (int i = 0; i < g_wn; i++) meow_widget_draw(g_w[i]);

    /* 滑杆：surfaceContainer 轨道 + primary 已选段（spacing/radius 来自主题） */
    meow_gfx_fill_round(20, H - 90, W - 40, 8, 4, th->surfaceContainerHigh);
    meow_gfx_fill_round(20, H - 90, (W - 40) * 2 / 3, 8, 4, th->primary);

    /* 开关（开）：primary 圆钮（radius=控件圆角） */
    meow_gfx_fill_round(W - 90, H - 150, 52, 30, 15, th->primary);
    meow_gfx_fill_circle(W - 48, H - 135, 11, th->onPrimary);

    /* 错误色 sample */
    meow_gfx_fill_round(20, H - 180, 120, 30, th->radius, th->errorContainer);
    meow_ui_text(36, H - 176, "error", th->font_body, th->onErrorContainer);

    (void)H;
}

int main(int argc, char **argv)
{
    int style = argc > 1 ? atoi(argv[1]) : 0;   /* 0=MD3 1=MIUIx */
    int dark  = argc > 2 ? atoi(argv[2]) : 1;   /* 0=light 1=dark */
    if (argc >= 2 && !strcmp(argv[1], "usage")) {
        fprintf(stderr, "usage: %s <style 0|1> <dark 0|1>\n", argv[0]);
        return 2;
    }

    if (!getenv("MEOW_UI_DUMP")) setenv("MEOW_UI_DUMP", "/tmp/meow_theme.ppm", 1);
    meow_ui_opts o = { 480, 720 };
    assert(meow_ui_init(&o) == 0);
    assert(meow_ui_width() == 480 && meow_ui_height() == 720);

    /* 控件样张（复刻 test_meow_ui_widgets 的五型按钮，验证控件形态随主题） */
    g_w[g_wn++] = meow_btn_create_variant(20, 290, 200, 52, "FILLED",  MEOW_BTN_FILLED);
    g_w[g_wn++] = meow_btn_create_variant(20, 352, 200, 52, "TONAL",   MEOW_BTN_TONAL);
    g_w[g_wn++] = meow_btn_create_variant(20, 414, 200, 52, "OUTLINED",MEOW_BTN_OUTLINED);
    g_w[g_wn++] = meow_btn_create_variant(20, 476, 200, 52, "TEXT",    MEOW_BTN_TEXT);
    g_w[g_wn++] = meow_btn_create_variant(20, 538, 200, 52, "ELEVATED",MEOW_BTN_ELEVATED);

    /* 切到目标 style×mode，再取主题渲染。
     * 先 set_mode（触发首次 load_settings，g_loaded 锁 1）再 set_style（设置后不再被 reload 覆盖）——
     * 宿主无 settings.conf，若先 set_style 再 set_mode，后者会 load_settings 把 g_style 重读回 MD3。 */
    meow_theme_set_mode(dark ? MEOW_THEME_DARK : MEOW_THEME_LIGHT);
    meow_ui_set_style(style);
    const meow_theme *th = meow_theme_get();

    /* 断言：样式可感知差异（primary 不同、圆角更大、间距/描边不同）——直接约束主题包正确性 */
    if (style == MEOW_STYLE_MD3) {
        assert(th->primary == (dark ? 0x4A6A9A : 0x2A5A8A));   /* MD3 蓝 */
        assert(th->radius_card == 16 && th->radius == 12 && th->spacing == 8 && th->stroke_w == 0);
    } else {
        assert(th->primary == (dark ? 0xFF8C4A : 0xF57200));   /* MIUIx 橙 */
        assert(th->radius_card == 28 && th->radius == 20 && th->spacing == 12 && th->stroke_w == 1);
        /* 与 MD3 同明暗对比：primary 必须不同（避免"切了没感觉"） */
        assert(th->primary != (dark ? 0x4A6A9A : 0x2A5A8A));
    }
    /* surface/bg 为「该 style 的派生背景」（宿主无 settings.conf → 默认面） */
    if (dark) assert(th->surface == (style == MEOW_STYLE_MIUIX ? 0x181310 : 0x141824));
    else      assert(th->surface == (style == MEOW_STYLE_MIUIX ? 0xF7F3EE : 0xE8EAF0));

    render_sample(th);
    meow_ui_flush();

    printf("PASS theme[%d][%d] style=%s dark=%d bg=0x%06X primary=0x%06X radius=%d card=%d spacing=%d stroke=%d\n",
           style, dark, style ? "MIUIx" : "MD3", dark, th->bg, th->primary,
           th->radius, th->radius_card, th->spacing, th->stroke_w);
    printf("PASS dump: MEOW_UI_DUMP=%s\n", getenv("MEOW_UI_DUMP") ? getenv("MEOW_UI_DUMP") : "(none)");

    meow_ui_shutdown();
    return 0;
}