import { spawnSync } from 'node:child_process';
import path from 'node:path';

/**
 * 发布上传的 OSS 命令行整理：把 ossutil 参数与凭据整理成可执行或可打印的形式，
 * 便于在 dry-run 下核对将要执行的上传，同时保证任何输出都不回显凭据明文。
 */
const redactedCredential = '<redacted>';

export function readReleaseDryRun(env = process.env) {
  const value = env.AGC_RELEASE_DRY_RUN?.trim().toLowerCase();
  return value === '1' || value === 'true';
}

function quoteArgument(value) {
  return /[\s"']/u.test(value) ? JSON.stringify(value) : value;
}

export function formatOssutilCommand({ binary, args, endpoint, credentials }) {
  const parts = [binary, ...args, '--endpoint', endpoint];
  if (credentials) {
    parts.push(
      '--access-key-id',
      redactedCredential,
      '--access-key-secret',
      redactedCredential,
    );
  }
  return parts.map(quoteArgument).join(' ');
}

export function createReleaseUploadPlan(
  {
    artifact,
    downloadArtifact,
    channel,
    manifest,
    manifestPath,
    legacyManifestPath,
  },
  bucket,
) {
  if (!artifact || !downloadArtifact || !manifestPath || !manifest?.version) {
    throw new Error('发布结果缺少更新包、首装包或清单');
  }
  const prefix = `oss://${bucket}/agc/${channel}`;
  const artifacts = [
    ...new Set(
      [artifact, `${artifact}.sig`, downloadArtifact].map((file) =>
        path.resolve(file),
      ),
    ),
  ];
  const plan = artifacts.map((source) => ({
    source,
    destination: `${prefix}/${manifest.version}/${path.basename(source)}`,
  }));
  plan.push({ source: manifestPath, destination: `${prefix}/latest.json` });
  if (legacyManifestPath) {
    plan.push({
      source: legacyManifestPath,
      destination: `oss://${bucket}/agc/latest.json`,
    });
  }
  return plan;
}

export function uploadReleaseArtifacts(
  release,
  {
    bucket,
    endpoint,
    binary = 'ossutil',
    accessKeyId,
    accessKeySecret,
    dryRun = false,
    spawn = spawnSync,
    log = console.log,
  },
) {
  if (Boolean(accessKeyId) !== Boolean(accessKeySecret)) {
    throw new Error('OSS AccessKey ID 和 Secret 必须同时提供');
  }
  const plan = createReleaseUploadPlan(release, bucket);
  for (const { source, destination } of plan) {
    // 全部安装对象成功后才执行 latest 指针；失败立即终止，不发布悬空链接。
    const args = ['cp', '--force', source, destination];
    if (dryRun) {
      log(
        `[dry-run] ${formatOssutilCommand({ binary, args, endpoint, credentials: Boolean(accessKeyId) })}`,
      );
      continue;
    }
    const credentials = accessKeyId
      ? ['--access-key-id', accessKeyId, '--access-key-secret', accessKeySecret]
      : [];
    const result = spawn(
      binary,
      [...args, '--endpoint', endpoint, ...credentials],
      {
        stdio: 'inherit',
        shell: false,
      },
    );
    if (result.error)
      throw new Error(`无法执行 ${binary}，请先安装并配置 ossutil`);
    if (result.status !== 0) {
      throw new Error(
        `OSS 上传失败（退出码 ${result.status ?? 1}）：${destination}`,
      );
    }
    log(`[ai-game-creator-shell] 已上传 ${destination}`);
  }
  if (dryRun) log('[ai-game-creator-shell] dry-run：未写入任何 OSS 对象');
  return plan;
}