import type { WorkstreamCloseoutInput, WorkstreamReusablePattern } from '../types.js';
import { workstreamReusablePatternValues } from '../core/constants.js';
import { cleanupEvidenceShowsDeletedZero, normalizeCleanupDeletedCount } from './cleanupEvidence.js';
import { defaultReviewProjects } from './review.js';

interface UpgradeTarget {
  files: string[];
  label: string;
  prompt: string;
}

const upgradeTargets = {
  blocker: {
    files: ['src/tools/blocker.ts', 'src/tools/workflow.ts', 'README.md'],
    label: '卡点固化',
    prompt: '把重复失败的命令、稳定解法、停止条件和后续入口沉淀成 kt_blocker_resolution 或收尾规则。',
  },
  cleanup: {
    files: ['src/tools/cleanup.ts', 'src/tools/verification.ts', 'README.md'],
    label: '清理需求',
    prompt: '把历史产物、验证进程或远程临时目录清理变成可复用命令或验证提醒。',
  },
  'command-template': {
    files: ['src/tools/workflow.ts', 'src/tools/testing.ts', 'scripts/'],
    label: '命令模板',
    prompt: '把反复使用且容易写错的命令模板封装到工作流、业务测试计划或脚本。',
  },
  'deploy-observation': {
    files: ['src/tools/deployObservation.ts', 'src/tools/workflow.ts', 'src/tools/testing.ts', 'README.md'],
    label: '部署观测',
    prompt: '把 Jenkins/K8s build、commit、镜像、Deployment、Pod、/health/runtime、日志和 smoke 观测步骤写成固定计划。',
  },
  none: {
    files: [],
    label: '无可执行升级',
    prompt: '明确说明本轮没有新的可复用流程、误报、清理或命令模板需要沉淀。',
  },
  'review-false-positive': {
    files: ['src/tools/review.ts', 'src/selfTest.ts', 'README.md'],
    label: '复审误报',
    prompt: '把已确认的误报规则沉淀到 review 过滤器和 self-test，避免后续污染上下文。',
  },
  'test-flow': {
    files: ['src/tools/testing.ts', 'scripts/', 'README.md'],
    label: '测试链路',
    prompt: '把新的真实接口、页面、QQBot、部署或业务 smoke 流程加入测试计划或脚本。',
  },
} satisfies Record<WorkstreamReusablePattern, UpgradeTarget>;

function normalizeList(values?: string[]): string[] {
  return (values || []).map((value) => value.trim()).filter(Boolean);
}

function normalizePatterns(values?: WorkstreamReusablePattern[]): WorkstreamReusablePattern[] {
  const validValues = new Set<WorkstreamReusablePattern>(workstreamReusablePatternValues);
  const uniqueValues = Array.from(
    new Set((values || []).filter((value) => validValues.has(value))),
  );
  const patterns: WorkstreamReusablePattern[] = uniqueValues.length > 0 ? uniqueValues : ['none'];

  return patterns.length > 1 ? patterns.filter((pattern) => pattern !== 'none') : patterns;
}

function buildPhase(name: string, evidence: string[], emptyHint: string): Record<string, unknown> {
  return {
    evidence,
    name,
    status: evidence.length > 0 ? 'ok' : 'missing',
    suggestion: evidence.length > 0 ? undefined : emptyHint,
  };
}

export function buildWorkstreamCloseout(input: WorkstreamCloseoutInput = {}): Record<string, unknown> {
  const title = input.title?.trim() || '';
  const changedProjects = normalizeList(input.changedProjects);
  const cleanupEvidence = normalizeList(input.cleanupEvidence);
  const cleanupFinalDeleted = normalizeCleanupDeletedCount(input.cleanupFinalDeleted);
  const cleanupOk =
    cleanupFinalDeleted === 0 || cleanupEvidenceShowsDeletedZero(cleanupEvidence);
  const docSyncEvidence = normalizeList(input.docSyncEvidence);
  const verificationEvidence = normalizeList(input.verificationEvidence);
  const problemRecords = normalizeList(input.problemRecords);
  const reviewEvidence = normalizeList(input.reviewEvidence);
  const stableSolutions = normalizeList(input.stableSolutions);
  const superpowersReviewEvidence = normalizeList(input.superpowersReviewEvidence);
  const patterns = normalizePatterns(input.reusablePatterns);
  const upgradeNeeded = patterns.some((pattern) => pattern !== 'none');
  const ktWorkflowUpdated = input.ktWorkflowUpdated === true;
  const missingItems = [
    title ? '' : '填写本轮大方向名称或目标。',
    verificationEvidence.length > 0
      ? ''
      : '补充测试或 smoke 验证证据；上线功能必须包含线上自测证据，只有计划或 Jenkins/K8s 成功不算闭环完成。',
    docSyncEvidence.length > 0 ? '' : '补充文档同步证据；无需更新时也要显式写明原因。',
    cleanupOk ? '' : '补充历史产物清理证据；至少包含 cleanup-history dry-run deleted=0 或结构化 cleanupFinalDeleted=0。',
    reviewEvidence.length > 0 ? '' : '补充 KT 全局 review 证据。',
    superpowersReviewEvidence.length > 0 ? '' : '补充 Superpowers code review 证据。',
    problemRecords.length > 0 ? '' : '补充问题记录；如无新卡点，显式写“无新卡点”。',
    stableSolutions.length > 0 ? '' : '补充稳定解法；如无新解法，显式写“无新增稳定解法”。',
    upgradeNeeded && !ktWorkflowUpdated
      ? '本轮识别到可复用模式，先升级 ktWorkflow 对应规则或脚本，再报告完成。'
      : '',
  ].filter(Boolean);
  const targetProjects = changedProjects.length > 0 ? changedProjects : [...defaultReviewProjects];
  const selectedUpgradeTargets = patterns.map((pattern) => ({
    pattern,
    ...upgradeTargets[pattern],
  }));

  return {
    canReportComplete: missingItems.length === 0,
    closeoutOrder: [
      buildPhase('development', title ? [title] : [], '写清本轮完成的开发目标。'),
      buildPhase(
        'test/smoke verification',
        verificationEvidence,
        '补一条可复验的验证证据；上线功能必须补线上自测证据。',
      ),
      buildPhase('documentation sync', docSyncEvidence, '补充 kt_change_doc_sync 证据或无需更新说明。'),
      {
        evidence: [
          ...cleanupEvidence,
          ...(cleanupFinalDeleted === undefined
            ? []
            : [`cleanupFinalDeleted=${cleanupFinalDeleted}`]),
        ],
        name: 'history cleanup',
        status: cleanupOk ? 'ok' : 'missing',
        suggestion: cleanupOk
          ? undefined
          : '补充 cleanup-history dry-run deleted=0 证据或传入 cleanupFinalDeleted=0。',
      },
      buildPhase('KT global review', reviewEvidence, '补充 kt_global_code_review 或 global-review 证据。'),
      buildPhase('Superpowers code review', superpowersReviewEvidence, '补充 Superpowers reviewer 创建/完成/关闭和处理结论证据。'),
      buildPhase('problem record', problemRecords, '记录问题点；没有问题也要显式写明。'),
      buildPhase('stable solution', stableSolutions, '记录稳定解法；没有新增解法也要显式写明。'),
      {
        evidence: upgradeNeeded
          ? [
              ktWorkflowUpdated
                ? input.upgradeNotes || '已升级 ktWorkflow。'
                : '待升级 ktWorkflow。',
            ]
          : [input.upgradeNotes || '无新的可执行 ktWorkflow 升级需求。'],
        name: 'ktWorkflow upgrade',
        status: upgradeNeeded ? (ktWorkflowUpdated ? 'ok' : 'missing') : 'not-needed',
      },
    ],
    commands: [
      'git status --short',
      'pnpm run typecheck',
      'pnpm run self-test',
      'pnpm run global-review',
      'pnpm run workstream-closeout -- --superpowers-review "Superpowers reviewer completed; no Critical/Important findings"',
      'git diff --check',
    ],
    missingItems,
    patterns,
    targetProjects,
    title: title || '未命名大方向',
    upgradeNeeded,
    upgradeTargets: selectedUpgradeTargets,
  };
}