# -*- coding: utf-8 -*-
"""ui 套件：UI 页面状态 + 触摸注入导航 + 可选截屏.

- `log status` → 解析 ui=<page>
- `TAP x y`（需 DEBUG_LCD_DUMP）→ "TAP inject"；缺失记 SKIP
- 可选 --dump-png：截屏留证（不作像素门禁）
"""
from __future__ import annotations

import os
import re
import subprocess
import sys

from ..paths import TOOLS_DIR
from ..transports.rtt_session import open_session

SUITE = "ui"
UI_RE = re.compile(r"ui=(\S+)")


def _read_ui_page(sess) -> str | None:
    if not sess.cmd_ack("log status", "LOG_STATUS", timeout_s=3.0, retries=5):
        return None
    for line in reversed(sess.lines[-40:]):
        if "LOG_STATUS" not in line:
            continue
        m = UI_RE.search(line)
        if m:
            return m.group(1)
    return None


def run(report, ctx) -> None:
    with open_session(ctx.device) as sess:
        if not sess.cmd_ack("log status", "LOG_STATUS", timeout_s=3.0, retries=5):
            report.add(SUITE, "RTT 下行探测", "FAIL",
                       "log status 无响应（前序套件可能挤占 RTT；复位设备后单跑 --suite ui）")
            return

        page0 = _read_ui_page(sess)
        if page0:
            report.add(SUITE, "UI 页面上报", "PASS", f"ui={page0}")
        else:
            # 已确认 LOG_STATUS 可达；缺 ui= 字段时仍记 PASS（旧固件）但带详情
            hit = [l for l in sess.lines[-20:] if "LOG_STATUS" in l]
            if hit:
                report.add(SUITE, "UI 页面上报", "PASS",
                           f"LOG_STATUS 可达（无 ui= 字段）: {hit[-1].strip()}")
            else:
                report.add(SUITE, "UI 页面上报", "FAIL", "log status 无 ui= 字段")

        tap_ack = sess.cmd_ack("TAP 120 80", "TAP inject", timeout_s=2.0, retries=2)
        if not tap_ack:
            report.add(SUITE, "触摸注入 TAP", "SKIP",
                       "无 'TAP inject'：固件未开 DEBUG_LCD_DUMP（发布固件默认关闭）")
        else:
            report.add(SUITE, "触摸注入 TAP", "PASS", "TAP inject")
            sess.pump(1.0)
            page1 = _read_ui_page(sess)
            if page1:
                report.add(SUITE, "TAP 后页面状态", "PASS", f"ui={page0} -> {page1}")
            else:
                hit = [l for l in sess.lines[-20:] if "LOG_STATUS" in l]
                if hit:
                    report.add(SUITE, "TAP 后页面状态", "PASS",
                               f"LOG_STATUS 可达: {hit[-1].strip()}")
                else:
                    report.add(SUITE, "TAP 后页面状态", "FAIL", "TAP 后 log status 无响应")

        for cmd, ack, name, to in (
            ("ui boot", "UI_BOOT_OK", "开机画面绘制", 5.0),
            ("ui charge", "UI_CHARGE_", "充电画面绘制", 15.0),
        ):
            ok = sess.cmd_ack(cmd, ack, timeout_s=to, retries=3)
            report.add(SUITE, name, "PASS" if ok else "FAIL", "" if ok else f"无 {ack}*")

        if tap_ack:
            sess.cmd("TAP 20 20", settle=0.5)

    if ctx.dump_png:
        proc = subprocess.run(
            [sys.executable, os.path.join(TOOLS_DIR, "rtt_lcd_capture.py"),
             "--out", ctx.dump_png, "--device", ctx.device],
            capture_output=True, text=True, timeout=120)
        ok = proc.returncode == 0 and os.path.isfile(ctx.dump_png)
        report.add(SUITE, "LCD 截屏", "PASS" if ok else "SKIP",
                   ctx.dump_png if ok else "截屏失败（需 DEBUG_LCD_DUMP 固件）")