# -*- coding: utf-8 -*-
r'''官网的"产品展示"部分：手表界面 mockup + 连接方式示意。

为什么用 HTML/CSS 画手表界面，而不是放截图：
    * 手表是安卓设备，没有真机/模拟器就拍不到界面
    * CSS 画的图在任何屏幕上都是清晰的（截图放大会糊）
    * 用的颜色和布局**直接从 MainActivity.java 抄**，
      所以不是"想象的样子"，是真实界面

手表真实参数（android/.../MainActivity.java）：
    C_BG     = 0xFFF5F7FA   页面底色（浅灰）
    C_FG     = 0xFF1F2328   主文字（近黑）
    C_ACCENT = 0xFF185CE8   强调蓝
    C_DIM    = 0xFF656D76   次要文字
    十个分页：媒体 屏幕 文件 语音 电脑 网络 系统 教室 效率 娱乐
'''
from __future__ import annotations

# 和手表代码一致的颜色
W_BG = "#F5F7FA"
W_FG = "#1F2328"
W_ACCENT = "#185CE8"
W_DIM = "#656D76"
W_CARD = "#FFFFFF"
W_BORDER = "#E3E7ED"

TABS = ["媒体", "屏幕", "文件", "语音", "电脑",
        "网络", "系统", "教室", "效率", "娱乐"]

# "媒体"分页的真实操作（从 TabDef 抄的）
MEDIA_ACTIONS = [
    ("放音频", "🔊"), ("放视频", "▶"), ("暂停", "⏸"),
    ("继续", "⏵"), ("音量 +", "＋"), ("音量 −", "−"),
    ("静音", "🔇"), ("下一首", "⏭"), ("投图到屏幕", "🖼"),
]

# "教室"分页（老师的核心场景）
CLASSROOM_ACTIONS = [
    ("上课：开投影", "📽"), ("打开课件", "📂"), ("课堂专注", "🎯"),
    ("恢复桌面", "↩"), ("看屏幕", "👁"), ("下课关机", "⏻"),
]

TAB_ACTIONS = {"媒体": MEDIA_ACTIONS, "教室": CLASSROOM_ACTIONS}


def _watch_card(active_tab: str) -> str:
    """画一个手表界面。active_tab 决定显示哪个分页的内容。"""
    actions = TAB_ACTIONS.get(active_tab, MEDIA_ACTIONS)

    # 顶部标签条
    tabs = []
    for name in TABS:
        on = name == active_tab
        tabs.append(
            '<span class="w-tab%s">%s</span>' % (" on" if on else "", name))
    tabs_html = "".join(tabs)

    # 操作网格
    buttons = []
    for label, icon in actions:
        buttons.append(
            '<div class="w-btn"><span class="w-ic">%s</span>'
            '<span class="w-lb">%s</span></div>' % (icon, label))
    grid_html = "".join(buttons)

    return (
        '<div class="watch">'
        '<div class="w-screen">'
        '<div class="w-status"><span>ykxmz</span>'
        '<span class="w-conn">● 局域网 3 ms</span></div>'
        '<div class="w-tabs">%s</div>'
        '<div class="w-body">'
        '<div class="w-head">%s</div>'
        '<div class="w-grid">%s</div>'
        '</div>'
        '<div class="w-foot">被控端：教室电脑 · 192.168.2.64</div>'
        '</div></div>' % (tabs_html, active_tab, grid_html)
    )


def _pc_card() -> str:
    """电脑端 —— 用真实截图（_build/site_shots/pc-main.png）。"""
    return (
        '<figure class="pcshot">'
        '<img src="/shot/pc-main.png" alt="ykxmz 电脑端首次设置界面" '
        'loading="lazy">'
        '<figcaption>电脑端：装完填个 6 位配对码就行</figcaption>'
        '</figure>'
    )


def _flow_diagram() -> str:
    """连接方式示意：局域网直连 vs 跨网络走中转。"""
    return '''
<div class="flow">
  <div class="flow-col">
    <div class="flow-tag ok">同一个 WiFi</div>
    <div class="flow-row">
      <div class="node">⌚<span>手表</span></div>
      <div class="link"><span class="ms">3 ms</span>
        <div class="line"></div></div>
      <div class="node">🖥<span>教室电脑</span></div>
    </div>
    <p>直连，不经过任何服务器。几十毫秒，画面基本跟手。</p>
  </div>

  <div class="flow-col">
    <div class="flow-tag warn">不在同一个网络</div>
    <div class="flow-row">
      <div class="node">⌚<span>手表</span></div>
      <div class="link"><div class="line"></div></div>
      <div class="node relay">☁<span>中转</span></div>
      <div class="link"><div class="line"></div></div>
      <div class="node">🖥<span>电脑</span></div>
    </div>
    <p>两边都主动连到中转，绕过 NAT。办公室也能管教室。</p>
  </div>
</div>
'''


def render_showcase() -> str:
    """整个"产品展示"区块。"""
    return '''
<section id="shots"><div class="wrap">
  <div class="sec-head">
    <h2>长什么样</h2>
    <p>手表上十个分页，常用操作都在第一屏</p>
  </div>
  <div class="showcase">
    %(watch)s
    %(pc)s
  </div>
</div></section>

<section id="how-connect"><div class="wrap">
  <div class="sec-head">
    <h2>怎么连上的</h2>
    <p>同一个 WiFi 就走局域网直连，不同网络自动切中转</p>
  </div>
  %(flow)s
</div></section>
''' % {"watch": _watch_card("媒体"), "pc": _pc_card(),
       "flow": _flow_diagram()}


SHOWCASE_CSS = """
/* ---------- 产品展示 ---------- */
.showcase{display:grid;gap:34px;align-items:start;
          justify-items:center}
@media(min-width:820px){.showcase{grid-template-columns:1fr 1fr}}

/* 手表 mockup。尺寸按真实手表屏幕比例 */
.watch{width:300px;padding:10px;border-radius:34px;
       background:linear-gradient(160deg,#2b3038,#14171c);
       box-shadow:0 18px 40px rgba(16,24,40,.18);
       position:relative}
.watch::after{content:'';position:absolute;right:-3px;top:110px;
       width:5px;height:44px;border-radius:3px;background:#3a4048}
.w-screen{background:%(W_BG)s;border-radius:26px;overflow:hidden;
          font-size:11px;color:%(W_FG)s}
.w-status{display:flex;justify-content:space-between;align-items:center;
          padding:11px 12px 7px;font-size:9px;font-weight:600;
          gap:6px;white-space:nowrap}
.w-conn{color:#16a34a;font-weight:600}
.w-tabs{display:flex;gap:4px;overflow:hidden;padding:0 11px 8px;
        border-bottom:1px solid %(W_BORDER)s}
.w-tab{flex:none;padding:3px 8px;border-radius:999px;color:%(W_DIM)s;
       font-size:10px;white-space:nowrap}
.w-tab.on{background:%(W_ACCENT)s;color:#fff;font-weight:600}
.w-body{padding:12px 13px 14px}
.w-head{font-size:12px;font-weight:700;margin-bottom:10px}
.w-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
.w-btn{background:%(W_CARD)s;border:1px solid %(W_BORDER)s;
       border-radius:11px;padding:11px 4px 9px;text-align:center;
       display:flex;flex-direction:column;align-items:center;gap:5px}
.w-ic{font-size:15px;line-height:1}
.w-lb{font-size:9px;color:%(W_FG)s;white-space:nowrap}
.w-foot{padding:9px 13px 12px;color:%(W_DIM)s;font-size:9px;
        border-top:1px solid %(W_BORDER)s}

/* 电脑端截图 */
.pcshot{margin:0;text-align:center}
.pcshot img{width:100%%;max-width:352px;height:auto;
            border-radius:10px;display:block;margin:0 auto;
            box-shadow:0 18px 40px rgba(16,24,40,.16)}
.pcshot{padding:14px;background:#f2f4f7;border-radius:16px;
        border:1px solid %(W_BORDER)s}
.pcshot figcaption{margin-top:14px;color:%(W_DIM)s;font-size:13px}

/* 连接方式示意 */
.flow{display:grid;gap:18px}
@media(min-width:760px){.flow{grid-template-columns:1fr 1fr}}
.flow-col{border:1px solid #e6e8eb;border-radius:14px;padding:24px 20px;
          background:#fafbfc}
.flow-tag{display:inline-block;padding:3px 11px;border-radius:999px;
          font-size:12px;font-weight:600;margin-bottom:20px}
.flow-tag.ok{background:#dcfce7;color:#15803d}
.flow-tag.warn{background:#fef3c7;color:#a16207}
.flow-row{display:flex;align-items:center;justify-content:center;
          gap:2px;margin-bottom:16px;flex-wrap:nowrap}
.node{display:flex;flex-direction:column;align-items:center;gap:6px;
      font-size:26px;flex:none;width:64px}
.node span{font-size:12px;color:#4b5563;font-weight:500}
.node.relay{font-size:24px}
.link{flex:1;min-width:16px;position:relative;display:flex;
      align-items:center;justify-content:center}
.link .line{width:100%%;height:2px;background:#c7cdd6;
            border-radius:2px}
.link .ms{position:absolute;top:-15px;font-size:10px;color:#15803d;
          font-weight:600;white-space:nowrap}
.flow-col p{color:#6b7280;font-size:13px;line-height:1.7;margin:0}
""" % {"W_BG": W_BG, "W_FG": W_FG, "W_ACCENT": W_ACCENT, "W_DIM": W_DIM,
       "W_CARD": W_CARD, "W_BORDER": W_BORDER}