import { existsSync, readFileSync } from "node:fs";
import { runCommand } from "./command";
import { type UniDeskConfig, repoRoot, rootPath } from "./config";
import { composeConfig } from "./docker";

interface CheckItem {
  name: string;
  ok: boolean;
  detail: unknown;
}

function fileItem(path: string): CheckItem {
  const absolute = rootPath(path);
  return { name: `file:${path}`, ok: existsSync(absolute), detail: absolute };
}

function commandItem(name: string, command: string[]): CheckItem {
  const result = runCommand(command, repoRoot);
  return {
    name,
    ok: result.exitCode === 0,
    detail: {
      command,
      exitCode: result.exitCode,
      stdoutTail: result.stdout.slice(-4000),
      stderrTail: result.stderr.slice(-4000),
    },
  };
}

function unifiedLogRotationItem(): CheckItem {
  const serviceFiles = [
    "src/components/backend-core/src/logger.ts",
    "src/components/frontend/src/index.ts",
    "src/components/provider-gateway/src/index.ts",
    "src/components/microservices/code-queue/src/index.ts",
    "src/components/microservices/v3sctl-adapter/src/index.ts",
    "src/components/microservices/mdtodo/src/index.ts",
    "src/components/microservices/project-manager/src/index.ts",
    "src/components/microservices/baidu-netdisk/src/index.ts",
    "src/components/microservices/oa-event-flow/src/index.ts",
  ];
  const offenders = serviceFiles.flatMap((path) => {
    const text = readFileSync(rootPath(path), "utf8");
    const directLogAppend = /appendFileSync\(\s*(?:config\.)?logFile\b/u.test(text) || /appendFileSync\(\s*process\.env\.LOG_FILE\b/u.test(text);
    const missingWriter = !text.includes("createHourlyJsonlWriter");
    return directLogAppend || missingWriter ? [{ path, directLogAppend, missingWriter }] : [];
  });
  return {
    name: "logs:unified-hourly-rotation",
    ok: offenders.length === 0,
    detail: {
      sharedWriter: "src/components/shared/src/rotating-jsonl.ts",
      checkedFiles: serviceFiles,
      offenders,
    },
  };
}

export function runChecks(config: UniDeskConfig): { ok: boolean; items: CheckItem[] } {
  const items: CheckItem[] = [
    { name: "config:validated", ok: true, detail: { project: config.project.name, runtime: config.runtime } },
    fileItem("scripts/cli.ts"),
    fileItem("AGENTS.md"),
    fileItem("TEST.md"),
    fileItem("docker-compose.yml"),
    fileItem("src/components/backend-core/src/index.ts"),
    fileItem("src/components/frontend/src/index.ts"),
    fileItem("src/components/provider-gateway/src/index.ts"),
    fileItem("src/components/microservices/oa-event-flow/src/index.ts"),
    fileItem("src/components/microservices/v3sctl-adapter/src/index.ts"),
    fileItem("src/components/microservices/mdtodo/src/index.ts"),
    fileItem("scripts/src/deploy.ts"),
    fileItem("scripts/src/e2e.ts"),
    unifiedLogRotationItem(),
    commandItem("bun:version", ["bun", "--version"]),
    commandItem("typescript:scripts", ["bunx", "tsc", "-p", "scripts/tsconfig.json", "--noEmit", "--pretty", "false"]),
    commandItem("typescript:components", ["bunx", "tsc", "-p", "src/tsconfig.check.json", "--pretty", "false"]),
  ];
  const compose = composeConfig(config);
  items.push({
    name: "docker-compose:config",
    ok: compose.result.exitCode === 0,
    detail: {
      command: compose.command,
      exitCode: compose.result.exitCode,
      stdoutTail: compose.result.stdout.slice(-4000),
      stderrTail: compose.result.stderr.slice(-4000),
      runtimeEnv: compose.runtimeEnv,
    },
  });
  return { ok: items.every((item) => item.ok), items };
}