import * as fs from "fs";
import * as path from "path";
import { ApprovedFileLog } from "./ApprovedFileLog";
import axios from "axios";
import { JestUtils } from "../Utilities/JestUtils";

let runOnce = false;
export class FailedFileLog {
  private static downloadedScriptCheck: boolean = false;

  private static clearLogFile(): void {
    if (!runOnce || JestUtils.isJestRunning()) {
      return;
    }
    runOnce = true;
    this.forceClearFileLog();
  }

  public static forceClearFileLog() {
    fs.writeFileSync(this.getLogFilePath(), "");
  }

  private static async downloadApproveAllScriptIfMissing(): Promise<void> {
    if (this.downloadedScriptCheck) {
      return;
    }
    this.downloadedScriptCheck = true;

    await this.downloadFile(`approve_all`);
    await this.downloadFile(`detect_and_remove_abandoned`);
  }

  private static async downloadFile(baseScript: string) {
    try {
      const extension = process.platform === "win32" ? ".bat" : ".sh";

      const scriptPath = path.join(
        ApprovedFileLog.APPROVAL_TEMP_DIRECTORY,
        `${baseScript}${extension}`,
      );

      if (!fs.existsSync(scriptPath)) {
        const githubUrl =
          "https://raw.githubusercontent.com/approvals/ApprovalTests.Java/refs/heads/master/";
        const filePath = `resources/${baseScript}${extension}`;
        const response = await axios.get(`${githubUrl}${filePath}`);

        fs.writeFileSync(scriptPath, response.data);
        fs.chmodSync(scriptPath, 0o755);
      }
    } catch (error) {
      // Do nothing
    }
  }

  public static getLogFilePath(): string {
    return path.join(
      ApprovedFileLog.APPROVAL_TEMP_DIRECTORY,
      ".failed_comparison.log",
    );
  }

  public static log(approved: string, received: string): void {
    this.downloadApproveAllScriptIfMissing().then(() => {
      const logFilePath = this.getLogFilePath();
      const logEntry = `${received} -> ${approved}\n`;
      fs.appendFileSync(logFilePath, logEntry);
    });
  }

  public static touch(): void {
    this.clearLogFile();
  }
}