#!/usr/bin/env node
/**
 * D18: emotion-trend.vue 情绪趋势页清理 (debt 69)
 *
 * 1) template 5 个 legend-step 内联 background -> class（SCSS 变量）
 * 2) script 天气色板/canvas 色收编 BrandColors + 补 key
 * 3) style 局部变量/全局映射
 */
const fs = require('fs');
const F = 'pages/mind-detail/emotion-trend.vue';
let src = fs.readFileSync(F, 'utf8');
let replaced = 0;

function repl(from, to) {
  const cnt = src.split(from).length - 1;
  if (cnt === 0) { console.warn('NOT FOUND:', from.slice(0, 90)); return; }
  src = src.split(from).join(to);
  replaced += cnt;
}

// ---- 1. template legend-step 内联 -> 语义 class ----
repl('<view class="legend-step" style="background:#FFE0E0"></view>', '<view class="legend-step legend-step-1"></view>');
repl('<view class="legend-step" style="background:#FFB0B0"></view>', '<view class="legend-step legend-step-2"></view>');
repl('<view class="legend-step" style="background:#FFD9A0"></view>', '<view class="legend-step legend-step-3"></view>');
repl('<view class="legend-step" style="background:#C8E6C9"></view>', '<view class="legend-step legend-step-4"></view>');
repl('<view class="legend-step" style="background:#81C784"></view>', '<view class="legend-step legend-step-5"></view>');

// ---- 2. script 天气色板 / canvas ----
repl("sunny: { icon: '\\u2600\\uFE0F', label: '心情很好', color: '#FFB347' }", "sunny: { icon: '\\u2600\\uFE0F', label: '心情很好', color: BrandColors.weatherSunny }");
repl("cloudy: { icon: '\\u26C5', label: '一般般', color: '#A0A0A0' }", "cloudy: { icon: '\\u26C5', label: '一般般', color: BrandColors.emotionDisgust }");
repl("rainy: { icon: '\\uD83C\\uDF27\\uFE0F', label: '有点难过', color: '#6B9BD2' }", "rainy: { icon: '\\uD83C\\uDF27\\uFE0F', label: '有点难过', color: BrandColors.emotionSadness }");
repl("stormy: { icon: '\\u26A1', label: '很烦躁', color: '#8B5CF6' }", "stormy: { icon: '\\u26A1', label: '很烦躁', color: BrandColors.violet }");
repl("rainbow: { icon: '\\uD83C\\uDF08', label: '特别开心', color: '#FF6B9D' }", "rainbow: { icon: '\\uD83C\\uDF08', label: '特别开心', color: BrandColors.mind }");
repl("color: '#ccc' }", "color: BrandColors.textGhost }");
repl("ctx.setStrokeStyle('#E0E0E0')", "ctx.setStrokeStyle(BrandColors.hairline)");
repl("ctx.setFillStyle('#999')", "ctx.setFillStyle(BrandColors.textMuted)");
repl("ctx.setStrokeStyle('#F0F0F0')", "ctx.setStrokeStyle(BrandColors.fill)");
repl("var lineColor = avg >= 5 ? '#10B981' : '#FF6B9D'", "var lineColor = avg >= 5 ? BrandColors.success : BrandColors.mind");
repl("color = '#10B981'", "color = BrandColors.success");
repl("color = '#FFD93D'", "color = BrandColors.emotionJoy");
repl("color = '#FF6B9D'", "color = BrandColors.mind");

// ---- 3. import ----
const hasImport = src.includes('utils/brand-colors.js');
if (!hasImport) {
  const m = src.match(/<script>\r?\n/);
  if (m) src = src.replace(m[0], m[0] + "import { BrandColors } from '../../utils/brand-colors.js'\r\n");
  else console.warn('script tag not found');
}

// ---- 4. style ----
const styleIdx = src.indexOf('<style');
const before = src.slice(0, styleIdx);
let styleBody = src.slice(styleIdx);

styleBody = styleBody.replace(/#FF6B9D(?![0-9a-fA-F])/gi, '$dim-mind');
styleBody = styleBody.replace(/#81C784(?![0-9a-fA-F])/gi, '$mat-green-light');

const palette = [
  '// ===== 情绪趋势页专属色阶（热力图绿阶 + 画布近白；单页专用，约定见 uni.scss §14）=====',
  '$c-et-heat-1: #FFE0E0; // 热力档 1（最浅红）',
  '$c-et-heat-2: #FFB0B0; // 热力档 2（浅红）',
  '$c-et-heat-3: #FFD9A0; // 热力档 3（浅橙）',
  '$c-et-heat-4: #C8E6C9; // 热力档 4（浅绿）',
  '$c-et-heat-5: #81C784; // 热力档 5（中绿）',
  '$c-canvas-bg: #FCFCFC; // 画布近白',
  ''
].join('\n');
styleBody = styleBody.replace(/(<style[^>]*>\s*\n)/, '$1' + palette + '\n');

// legend-step 类（追加在局部调色板后）
styleBody = styleBody.replace(
  /(<style[^>]*>\s*\n[^]*?<style[^>]*>)/,
  '$1'
);
// 直接在 style 开头 palette 后插入 legend-step 类
styleBody = styleBody.replace(
  /(\$c-canvas-bg: #FCFCFC; \/\/ 画布近白\r?\n)/,
  '$1\n.legend-step-1 { background: $c-et-heat-1; }\n.legend-step-2 { background: $c-et-heat-2; }\n.legend-step-3 { background: $c-et-heat-3; }\n.legend-step-4 { background: $c-et-heat-4; }\n.legend-step-5 { background: $c-et-heat-5; }\n'
);

// style 内残留：$c-canvas-bg 声明本身保留；替换 style 里的 #FCFCFC
styleBody = styleBody.replace(/#FCFCFC(?![0-9a-fA-F])/gi, '$c-canvas-bg');
// 恢复声明行（避免变成 $c-canvas-bg: $c-canvas-bg）
styleBody = styleBody.replace('$c-canvas-bg: $c-canvas-bg;', '$c-canvas-bg: #FCFCFC;');

src = before + styleBody;
fs.writeFileSync(F, src);
console.log('total replaced:', replaced);

const out = fs.readFileSync(F, 'utf8');
const lines = out.split('\n');
let n = 0;
for (let i = 0; i < lines.length; i++) {
  const L = lines[i].trim();
  if (/#[0-9a-fA-F]{3,8}\b/.test(L) && L.charAt(0) !== '$') { console.log('HEX ' + (i + 1) + ': ' + L); n++; }
}
console.log('remaining non-palette hex:', n);