#!/usr/bin/env node
/**
 * D33: 修复 C 批遗留 bug —— 脚本/样式中的 'BrandColors.x' 字符串字面量
 * （字符串不是变量引用，作为颜色值无效：canvas setFillStyle、渐变拼接、色板数组等）
 * 统一改为真正的变量引用 BrandColors.x（键均已在 utils/brand-colors.js 存在）
 */
const fs = require('fs');
const path = require('path');

const ROOT = path.resolve(__dirname, '..');
const EXCLUDE_DIRS = new Set(['node_modules', 'dist', 'unpackage', '.git', 'scripts', '.tmp_equiv']);

function walk(dir, out = []) {
  for (const name of fs.readdirSync(dir)) {
    if (EXCLUDE_DIRS.has(name)) continue;
    const p = path.join(dir, name);
    const st = fs.statSync(p);
    if (st.isDirectory()) walk(p, out);
    else if (name.endsWith('.vue')) out.push(p);
  }
  return out;
}

let files = 0;
let count = 0;
for (const abs of walk(ROOT)) {
  const src = fs.readFileSync(abs, 'utf8');
  if (!/['"]BrandColors\.\w+['"]/.test(src)) continue;
  let n = 0;
  let out = src.replace(/['"]BrandColors\.(\w+)['"]/g, (m, key) => {
    n++;
    return 'BrandColors.' + key;
  });
  if (!/import\s*\{[^}]*\bBrandColors\b[^}]*\}\s*from\s*['"][^'"]*brand-colors/.test(out) &&
      !/import\s*\{[^}]*\bBrandColors\b[^}]*\}\s*from\s*['"][^'"]*brand-colors/.test(src)) {
    const rel = path.relative(path.dirname(abs), path.join(ROOT, 'utils/brand-colors.js')).split(path.sep).join('/');
    const existing = out.match(/import\s*\{([^}]*)\}\s*from\s*(['"][^'"]*brand-colors(?:\.js)?['"])/);
    if (existing) {
      out = out.replace(existing[0], 'import {' + existing[1].replace(/\s*$/, '') + (existing[1].trim().endsWith(',') ? ' ' : ', ') + 'BrandColors } from ' + existing[2]);
    } else {
      const t = out.match(/<script[^>]*>\r?\n/);
      if (t) out = out.replace(t[0], t[0] + "import { BrandColors } from '" + rel + "'" + (t[0].includes('\r\n') ? '\r\n' : '\n'));
    }
  }
  fs.writeFileSync(abs, out, 'utf8');
  files++;
  count += n;
  console.log(String(n).padStart(3) + '  ' + path.relative(ROOT, abs).split(path.sep).join('/'));
}
console.log('文件:', files, '修复字符串引用:', count);