/* test_lock_widgets.c — M7.1b 锁屏 UI 控件化宿主验证。
 *
 * 复现 lock_screen_ui.c 所建锁屏键盘控件集（12 键 meow_widget_custom + meow_widget 命中 +
 * 按压态 MEOW_WS_PRESSED→primary 26% α），验证：
 *   P1 键盘渲染：12 键各画成 surfaceContainer 圆角钮（非背景像素）；
 *   P2 键盘命中：meow_widget_hit 在每键中心命中；键值映射（digit/清空/退格）正确；间隙不命中；
 *   P3 主题四态（MD3/MIUIx × 明暗）键盘渲染非背景；
 *   P4 按压态：meow_widget_set_state(MEOW_WS_PRESSED) → 该键像素变化（primary 26% α 叠加）；
 *   P5 键值 round-trip：lk_key_value_at 在键中心/间隙分别返回正确键值与 LK_DOWN_NONE。
 *
 * 布局几何/键序与 lock_screen_ui.c 镜像（LK_X0..LK_COLS/LK_ROWS/lk_keys），控件创建方式与
 * lk_widgets_build 同（owner=哨兵 0x51，meow_widget_custom_create，render 读 meow_widget_rect 几何）。
 *
 * 编译（在 patch_v2/meow_launcherd 下）：
 *   gcc -Wall -Wextra -o test_lock_widgets test_lock_widgets.c \
 *       ../sdk/test_host_stub.c ../sdk/meow_ui_gfx.c ../sdk/meow_ui_sys.c \
 *       ../sdk/meow_ui_theme.c ../sdk/meow_ui_vol.c ../sdk/meow_ui_log.c \
 *       ../sdk/meow_ui_widget.c ../sdk/meow_ui_input.c ../sdk/meow_ui_activity.c \
 *       ../sdk/meow_ui_dialog.c ../sdk/meow_ui_ime.c ../sdk/meow_ui_str.c ../sdk/meow_pinyin.c \
 *       ../sdk/meow_ui_draw.c ../sdk/meow_ui_view.c ../sdk/meow_ui_box.c ../sdk/meow_ui_anim.c \
 *       ../sdk/meow_ui_scroll.c ../sdk/meow_ui_img.c ../sdk/meow_ui_media.c \
 *       ../sdk/meow_notify_ipc.c ../sdk/stb_image.c -I../sdk -I. -DMEOW_UI_HOST_TEST -pthread -lm
 * 运行：./test_lock_widgets
 */
#include "meow_ui.h"
#include "meow_ui_internal.h"   /* meow_ui_back_buf / meow_widget_rect / meow_gfx_fill_round[_alpha] */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

static int g_fail = 0;
#define CHECK(cond, ...) do { \
    if (cond) { printf("  PASS: " __VA_ARGS__); printf("\n"); } \
    else { printf("  FAIL: " __VA_ARGS__); printf("\n"); g_fail++; } } while (0)

/* ---- 与 lock_screen_ui.c 同源几何（镜像） ---- */
#define LK_X0       32
#define LK_COLW     130
#define LK_COLG     8
#define LK_Y0       320
#define LK_ROW_H    82
#define LK_ROWG     10
#define LK_ROWS     4
#define LK_COLS     3
#define LK_ACT_CLR  (-2)
#define LK_ACT_BS   (-1)
#define LK_SENTINEL 0x51          /* 锁屏控件 owner 哨兵（镜像 lock_screen_ui.c） */
#define LK_DOWN_NONE (-10)
static const int lk_keys[LK_ROWS][LK_COLS] = {
    { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, { LK_ACT_CLR, 0, LK_ACT_BS },
};
#define XRES 480
#define YRES 720

static meow_widget *lk_w[LK_ROWS][LK_COLS];

static void lk_rect(int row, int col, int rc[4])
{
    rc[0] = LK_X0 + col * (LK_COLW + LK_COLG);
    rc[1] = LK_Y0 + row * (LK_ROW_H + LK_ROWG);
    rc[2] = LK_COLW;
    rc[3] = LK_ROW_H;
}
static void lk_center(int row, int col, int *cx, int *cy)
{
    int rc[4]; lk_rect(row, col, rc);
    *cx = rc[0] + rc[2] / 2;
    *cy = rc[1] + rc[3] / 2;
}

/* ---- 键渲染（镜像 lock_screen_ui.c lk_key_render 的视觉语义）---- */
static void key_render(meow_widget *w, const meow_theme *th, void *ctx)
{
    (void)ctx;
    int rc[4]; meow_widget_rect(w, rc);
    int rad = (th->radius > 0) ? th->radius : 10;
    meow_gfx_fill_round(rc[0], rc[1], rc[2], rc[3], rad, th->surfaceContainer);
    if (meow_widget_state(w) & MEOW_WS_PRESSED)
        meow_gfx_fill_round_alpha(rc[0], rc[1], rc[2], rc[3], rad, th->primary, 66);
    meow_ui_text_center(rc[0] + rc[2] / 2,
                        rc[1] + rc[3] / 2 - meow_ui_text_height(22) / 2,
                        "1", 22, th->onSurface);
}

static void mk_widgets(void)
{
    meow_ui_activity_push(LK_SENTINEL);
    for (int r = 0; r < LK_ROWS; r++)
        for (int c = 0; c < LK_COLS; c++) {
            int rc[4]; lk_rect(r, c, rc);
            lk_w[r][c] = meow_widget_custom_create(rc[0], rc[1], rc[2], rc[3],
                                                   key_render, NULL,
                                                   (void *)(intptr_t)lk_keys[r][c]);
        }
    meow_ui_activity_pop();
}

/* 坐标 -> 键值（镜像 lock_screen_ui.c lk_key_value_at）。 */
static int key_value_at(int x, int y)
{
    for (int r = 0; r < LK_ROWS; r++)
        for (int c = 0; c < LK_COLS; c++)
            if (lk_w[r][c] && meow_widget_hit(lk_w[r][c], x, y))
                return lk_keys[r][c];
    return LK_DOWN_NONE;
}

static void draw_all(void)
{
    const meow_theme *th = meow_theme_get();
    meow_ui_fill_rect(0, 0, XRES, YRES, th->surface);
    for (int r = 0; r < LK_ROWS; r++)
        for (int c = 0; c < LK_COLS; c++)
            if (lk_w[r][c]) meow_widget_draw(lk_w[r][c]);
}

static unsigned short px565(int x, int y)
{
    unsigned char *bb = meow_ui_back_buf();
    int pitch = meow_ui_back_buf_pitch(), bpp = meow_ui_back_buf_bpp();
    if (!bb || x < 0 || y < 0 || x >= XRES || y >= YRES) return 0;
    if (bpp == 16) return *(unsigned short *)(bb + (size_t)y * pitch + (size_t)x * 2);
    return (unsigned short)(*(unsigned int *)(bb + (size_t)y * pitch + (size_t)x * 4) >> 16);
}
static unsigned short bg565(uint32_t bg)
{
    return (unsigned short)(((bg >> 8) & 0xF800) | ((bg >> 5) & 0x07E0) | ((bg >> 3) & 0x001F));
}

int main(void)
{
    setbuf(stdout, NULL);
    setenv("MEOW_UI_DUMP", "/tmp/lock_widgets.ppm", 1);
    meow_ui_opts o = { XRES, YRES };
    if (meow_ui_init(&o) != 0) { printf("init failed\n"); return 1; }
    mk_widgets();
    meow_ui_activity_push(LK_SENTINEL);   /* 命中闸门打开（owner==active） */

    /* ============ P1 键盘渲染（12 键各画成非背景钮） ============ */
    printf("P1 keypad render (12 keys non-bg)\n");
    const meow_theme *th = meow_theme_get();
    draw_all();
    int all_nonbg = 1;
    for (int r = 0; r < LK_ROWS && all_nonbg; r++)
        for (int c = 0; c < LK_COLS && all_nonbg; c++) {
            int cx, cy; lk_center(r, c, &cx, &cy);
            if (px565(cx, cy) == bg565(th->surface)) all_nonbg = 0;
        }
    CHECK(all_nonbg, "each of 12 keys draws non-surface at center");

    /* ============ P2 命中（meow_widget_hit + 键值映射） ============ */
    printf("P2 keypad hit via meow_widget_hit\n");
    int hit_ok = 1, val_ok = 1;
    for (int r = 0; r < LK_ROWS; r++)
        for (int c = 0; c < LK_COLS; c++) {
            int cx, cy; lk_center(r, c, &cx, &cy);
            if (!meow_widget_hit(lk_w[r][c], cx, cy)) hit_ok = 0;
            if (key_value_at(cx, cy) != lk_keys[r][c]) val_ok = 0;
        }
    CHECK(hit_ok, "meow_widget_hit hits every key center");
    CHECK(val_ok, "key_value_at maps every key center to its digit/clear/backspace value");
    /* 间隙（两列之间）不命中 */
    int gap_x = LK_X0 + LK_COLW + LK_COLG / 2;   /* 列0 与列1 之间的间隙中心 */
    int gap_y = LK_Y0 + LK_ROW_H / 2;
    CHECK(meow_widget_hit(lk_w[0][0], gap_x, gap_y) == 0, "gap between columns not hit");
    CHECK(key_value_at(gap_x, gap_y) == LK_DOWN_NONE, "gap not mapped to any key");

    /* ============ P3 主题四态（MD3/MIUIx × 明暗）键盘渲染非背景 ============ */
    printf("P3 theme 4-state keypad render\n");
    const int styles[2] = { MEOW_STYLE_MD3, MEOW_STYLE_MIUIX };
    const int modes[2]  = { MEOW_THEME_LIGHT, MEOW_THEME_DARK };
    char nm[96];
    for (int si = 0; si < 2; si++) {
        for (int mi = 0; mi < 2; mi++) {
            meow_ui_set_style(styles[si]);
            meow_theme_set_mode((meow_theme_mode)modes[mi]);
            th = meow_theme_get();
            draw_all();
            /* 用一个键区的多像素带判定非背景（文字+底） */
            int rc[4]; lk_rect(1, 0, rc);
            int nonbg = 0;
            for (int dy = 0; dy < rc[3] && !nonbg; dy++)
                for (int dx = 0; dx < rc[2] && !nonbg; dx++)
                    if (px565(rc[0] + dx, rc[1] + dy) != bg565(th->surface)) nonbg = 1;
            snprintf(nm, sizeof nm, "style=%s mode=%s keypad renders non-surface",
                     styles[si] ? "MIUIx" : "MD3", modes[mi] ? "dark" : "light");
            CHECK(nonbg, "%s", nm);
        }
    }
    meow_ui_set_style(MEOW_STYLE_MD3);
    meow_theme_set_mode(MEOW_THEME_DARK);

    /* ============ P4 按压态（MEOW_WS_PRESSED → primary 26% α 像素变化） ============ */
    printf("P4 pressed state -> primary 26%% alpha overlay\n");
    th = meow_theme_get();
    draw_all();
    int cx, cy; lk_center(2, 1, &cx, &cy);   /* 键 (2,1) = 数字 8 */
    unsigned short p0 = px565(cx, cy);
    meow_widget_set_state(lk_w[2][1], MEOW_WS_PRESSED, 1);
    draw_all();
    unsigned short p1 = px565(cx, cy);
    meow_widget_set_state(lk_w[2][1], MEOW_WS_PRESSED, 0);
    CHECK(p1 != p0, "pressed key center pixel changes (primary 26%% overlay)");
    draw_all();
    unsigned short p2 = px565(cx, cy);
    CHECK(p2 == p0, "release restores original pixel");

    /* ============ P5 键值 round-trip（清空/退格/间隙） ============ */
    printf("P5 key-value round-trip (clear/backspace/gap)\n");
    int ccx, ccy, bcx, bcy, zcx, zcy;
    lk_center(3, 0, &ccx, &ccy);             /* 清空 */
    lk_center(3, 1, &zcx, &zcy);             /* 0 */
    lk_center(3, 2, &bcx, &bcy);             /* 退格 */
    CHECK(key_value_at(ccx, ccy) == LK_ACT_CLR, "bottom-left center == CLEAR (-2)");
    CHECK(key_value_at(zcx, zcy) == 0, "bottom-mid center == 0");
    CHECK(key_value_at(bcx, bcy) == LK_ACT_BS, "bottom-right center == BACKSPACE (-1)");

    meow_ui_activity_pop();
    meow_ui_shutdown();
    printf(g_fail ? "\nRESULT: %d FAIL(S)\n" : "\nRESULT: ALL PASS\n", g_fail);
    return g_fail;
}