/**
 * Page Data review / correction rollout (审查纠错影响分析):
 *
 * - Tier A (this module): map failure codes → structured correction suggestions.
 *   Does not change Agent Run success/failure semantics by itself.
 * - Tier B: MEMIND_ORCHESTRATOR_PAGE_DATA_VALIDATION_GATE_ENABLED
 *   Ops fail-closed switch; local/dev default stays observe-only (0).
 * - Tier C (minimal): remediable suggestion codes can be turned into a single
 *   goosed repair prompt (finish-guard / agent-run one-shot). No unbounded loops.
 */

const HTML_ISSUE_TO_CODE = Object.freeze({
  forbidden_local_storage: 'FORBIDDEN_LOCAL_STORAGE',
  forbidden_local_storage_fallback: 'FORBIDDEN_LOCAL_STORAGE',
  forbidden_browser_storage: 'FORBIDDEN_BROWSER_STORAGE',
  forbidden_legacy_page_data_api: 'FORBIDDEN_LEGACY_PAGE_DATA_API',
  forbidden_legacy_owner_api: 'FORBIDDEN_LEGACY_PAGE_DATA_API',
});

/** Codes goosed can reasonably fix in one repair turn. */
const REMEDIABLE_CODES = new Set([
  'PAGE_DATA_DELIVERABLE_MISSING',
  'PAGE_DATA_DELIVERY_FAILED',
  'DELIVERABLE_DATA_STORAGE_FORBIDDEN',
  'FORBIDDEN_LOCAL_STORAGE',
  'FORBIDDEN_BROWSER_STORAGE',
  'FORBIDDEN_LEGACY_PAGE_DATA_API',
  'COLUMNS_NOT_ALLOWED',
  'TOOL_GATEWAY_VALIDATION_FAILED',
  'PAGE_DATA_AIDER_FINISH_UNAVAILABLE',
]);

const SUGGESTION_BY_CODE = Object.freeze({
  PAGE_DATA_DELIVERABLE_MISSING: Object.freeze({
    code: 'PAGE_DATA_DELIVERABLE_MISSING',
    title: '缺少可交付的公开页面',
    actions: Object.freeze([
      '确认已用 page-data-collect 写出 public/*-survey.html 与（如需要）public/*-admin.html',
      '检查页面是否落在 workspace 的 public/ 目录，而不是仅聊天草稿',
      '重新说明需求并要求「完整创建并发布」',
    ]),
  }),
  PAGE_DATA_DELIVERY_FAILED: Object.freeze({
    code: 'PAGE_DATA_DELIVERY_FAILED',
    title: '页面数据绑定或发布失败',
    actions: Object.freeze([
      '确认 dataset 已 private_data_register_dataset 注册',
      '对每个公开页调用 private_data_bind_workspace_page（含 password 策略时口令 ≥8 位）',
      '检查 .mindspace/page-data-policies 是否生成且列白名单与表单字段一致',
    ]),
  }),
  DELIVERABLE_DATA_STORAGE_FORBIDDEN: Object.freeze({
    code: 'DELIVERABLE_DATA_STORAGE_FORBIDDEN',
    title: '页面使用了禁止的数据存储方式',
    actions: Object.freeze([
      '删除 localStorage / sessionStorage / IndexedDB 读写',
      '改用 /assets/page-data-client.js 与 Page Data 公开 API',
      '禁止回退到 /api/page-data 旧 Owner API',
    ]),
  }),
  FORBIDDEN_LOCAL_STORAGE: Object.freeze({
    code: 'FORBIDDEN_LOCAL_STORAGE',
    title: '检测到 localStorage 回退',
    actions: Object.freeze([
      '移除 localStorage.setItem / getItem',
      '报名/问卷提交改为 MindSpacePageData.createClient insert',
      '后台列表改为 Page Data read（口令页先 authenticate）',
    ]),
  }),
  FORBIDDEN_BROWSER_STORAGE: Object.freeze({
    code: 'FORBIDDEN_BROWSER_STORAGE',
    title: '检测到浏览器本地存储',
    actions: Object.freeze([
      '移除 sessionStorage / IndexedDB 等浏览器存储',
      '结构化数据只走 Page Data API',
    ]),
  }),
  FORBIDDEN_LEGACY_PAGE_DATA_API: Object.freeze({
    code: 'FORBIDDEN_LEGACY_PAGE_DATA_API',
    title: '使用了已移除的 /api/page-data',
    actions: Object.freeze([
      '改用 /api/public/pages/:pageId/data/... 公开 API',
      '通过 page-data-client.js，不要直连已删除的 Owner API',
    ]),
  }),
  COLUMNS_NOT_ALLOWED: Object.freeze({
    code: 'COLUMNS_NOT_ALLOWED',
    title: '字段不在策略白名单中',
    actions: Object.freeze([
      '对齐 HTML 表单 name 与 dataset 列名',
      '更新 policy 的 insert/read 白名单后重新 bind',
      '必要时先 ALTER 表并重新 register_dataset',
    ]),
  }),
  TOOL_GATEWAY_VALIDATION_FAILED: Object.freeze({
    code: 'TOOL_GATEWAY_VALIDATION_FAILED',
    title: '代码任务校验未通过',
    actions: Object.freeze([
      '根据工具网关校验输出修 HTML / 策略不一致项',
      '简单 Page Data 修复可走 code run + aider；复杂改动再升级执行器',
    ]),
  }),
  REQUIRED_REVIEW_EXECUTOR_MISMATCH: Object.freeze({
    code: 'REQUIRED_REVIEW_EXECUTOR_MISMATCH',
    title: '独立审查执行器不匹配',
    actions: Object.freeze([
      '确认 run 要求的 reviewExecutor 与实际执行器一致',
      '在能力与 executor binding 中启用对应审查执行器',
    ]),
  }),
  REQUIRED_EXECUTOR_UNAVAILABLE: Object.freeze({
    code: 'REQUIRED_EXECUTOR_UNAVAILABLE',
    title: '所需执行器不可用',
    actions: Object.freeze([
      '检查 aider / openhands / goose 绑定与 API Key',
      '确认 memindadm 执行器绑定已启用且模型可用',
    ]),
  }),
  PAGE_DATA_AIDER_FINISH_UNAVAILABLE: Object.freeze({
    code: 'PAGE_DATA_AIDER_FINISH_UNAVAILABLE',
    title: 'Aider Page Data 收尾不可用',
    actions: Object.freeze([
      '改回 Goose + page-data-collect 完成 bind/发布',
      '或检查 code run / Aider 配置后重试',
    ]),
  }),
  WORKFLOW_VALIDATION_GATE_UNAVAILABLE: Object.freeze({
    code: 'WORKFLOW_VALIDATION_GATE_UNAVAILABLE',
    title: 'Page Data 审查服务不可用',
    actions: Object.freeze([
      '确认 Orchestrator（8093）健康且 Shadow wiring 已开',
      '本地开发可将 MEMIND_ORCHESTRATOR_PAGE_DATA_VALIDATION_GATE_ENABLED=0 改为仅观察',
      '生产强制闸门需 Ops 批准；故障时应先恢复 Orchestrator 再重试交付',
    ]),
  }),
  WORKFLOW_VALIDATION_GATE_REJECTED: Object.freeze({
    code: 'WORKFLOW_VALIDATION_GATE_REJECTED',
    title: 'Page Data 审查未通过',
    actions: Object.freeze([
      '根据 Native 守卫与失败 check codes 修复页面/策略',
      '修复后重新发起交付，不要绕过审查闸门',
    ]),
  }),
  WORKFLOW_VALIDATION_GATE_INCONCLUSIVE: Object.freeze({
    code: 'WORKFLOW_VALIDATION_GATE_INCONCLUSIVE',
    title: 'Page Data 审查结果不明确',
    actions: Object.freeze([
      '确认必选 check（completion / binding / storage_policy）均已实际执行而非 skipped',
      '补齐 syncUserPagesOnSuccess 与 validateRunDeliverables 后再交付',
      '若仅本地调试，可临时关闭强制闸门改为观察模式',
    ]),
  }),
});

function normalizeCode(value) {
  return String(value ?? '')
    .trim()
    .toUpperCase()
    .replace(/[^A-Z0-9]+/g, '_');
}

export function listPageDataValidationSuggestionCodes() {
  return Object.keys(SUGGESTION_BY_CODE);
}

export function resolvePageDataValidationSuggestions(codeOrCodes) {
  const values = Array.isArray(codeOrCodes) ? codeOrCodes : [codeOrCodes];
  const seen = new Set();
  const suggestions = [];
  for (const raw of values) {
    const code = normalizeCode(raw);
    if (!code || seen.has(code)) continue;
    const item = SUGGESTION_BY_CODE[code];
    if (!item) continue;
    seen.add(code);
    suggestions.push({
      code: item.code,
      title: item.title,
      actions: [...item.actions],
    });
  }
  return suggestions;
}

export function formatPageDataValidationUserMessage({
  code = null,
  codes = null,
  message = '',
} = {}) {
  const base = String(message ?? '').trim();
  const resolvedCodes = [
    ...(Array.isArray(codes) ? codes : []),
    ...(code ? [code] : []),
  ];
  const suggestions = resolvePageDataValidationSuggestions(resolvedCodes);
  if (!suggestions.length) return base;
  const blocks = suggestions.map((item) => {
    const lines = item.actions.map((action) => `- ${action}`);
    return `建议（${item.title}）：\n${lines.join('\n')}`;
  });
  if (!base) return blocks.join('\n\n');
  return `${base}\n\n${blocks.join('\n\n')}`;
}

export function suggestionCodesFromPageDataHtmlIssues(htmlIssues = []) {
  const codes = [];
  for (const item of Array.isArray(htmlIssues) ? htmlIssues : []) {
    const issue = String(item?.issue ?? item ?? '').trim().toLowerCase();
    const mapped = HTML_ISSUE_TO_CODE[issue];
    if (mapped) codes.push(mapped);
  }
  return codes;
}

export function isPageDataSuggestionRemediable(codeOrCodes) {
  const values = Array.isArray(codeOrCodes) ? codeOrCodes : [codeOrCodes];
  return values.some((value) => REMEDIABLE_CODES.has(normalizeCode(value)));
}

/**
 * Build a goosed-facing repair prompt from Tier A suggestions.
 * Intended for one-shot finish-guard / agent-run repair, not unbounded retries.
 */
export function buildPageDataValidationRepairPrompt({
  code = null,
  codes = null,
  htmlIssues = [],
  unboundFiles = [],
  message = '',
} = {}) {
  const resolvedCodes = [
    ...(Array.isArray(codes) ? codes : []),
    ...(code ? [code] : []),
    ...suggestionCodesFromPageDataHtmlIssues(htmlIssues),
  ];
  const suggestions = resolvePageDataValidationSuggestions(resolvedCodes);
  const lines = [
    '【系统纠正建议 → 请立即修复】Page Data 交付未通过。请按 page-data-collect 技能执行下列纠正建议，完成后不要声称已发布，除非 bind 与公开页已就绪：',
    '1. load_skill → page-data-collect',
    '2. 确保 public/*.html 使用 /assets/page-data-client.js 与 MindSpacePageData.createClient({ apiBase: "/api" })',
    '3. 禁止 localStorage / sessionStorage / IndexedDB 与 /api/page-data 旁路',
    '4. 对每个 public/*.html 调用 private_data_bind_workspace_page',
  ];
  if (String(message ?? '').trim()) {
    lines.push('', `失败摘要：${String(message).trim().slice(0, 500)}`);
  }
  if (suggestions.length) {
    lines.push('', '纠正建议：');
    for (const item of suggestions) {
      lines.push(`- ${item.title}（${item.code}）`);
      for (const action of item.actions) {
        lines.push(`  · ${action}`);
      }
    }
  }
  if (Array.isArray(htmlIssues) && htmlIssues.length) {
    lines.push('', 'HTML 问题：');
    for (const item of htmlIssues) {
      lines.push(`- ${item.relativePath ?? '?'}: ${item.issue ?? item}`);
    }
  }
  if (Array.isArray(unboundFiles) && unboundFiles.length) {
    lines.push('', '尚未 bind 的页面：');
    for (const file of unboundFiles) {
      lines.push(`- ${file.relativePath ?? file}`);
    }
  }
  lines.push('', '修复完成前不要告诉用户“已发布/已可提交”。');
  return lines.join('\n');
}

export const pageDataValidationSuggestionsInternals = {
  SUGGESTION_BY_CODE,
  HTML_ISSUE_TO_CODE,
  REMEDIABLE_CODES,
  normalizeCode,
};