import * as fs from "node:fs";
import {Nullable} from "../types/Nullable";
import {DataManager} from "discord.js";
import * as util from "node:util";

export type BuildContext = {
  target: string,
  commitHash: string,
  commitLink: string,
  label: string,
}

export class BuildContextGetter {
  private static EXPECTED_PATHS = [
    "./deploy.json",
    "./dist/deploy.json"
  ];
  private static GIT_PATH = "https://git.iedsoftworks.com/neintonine/pnp-scheduler/commit/%s";
  
  getContext(): Nullable<BuildContext> {
    const path = this.findValidPath();
    if (!path) {
      return null;
    }
    
    const jsonData = fs.readFileSync(path).toString();
    const data = JSON.parse(jsonData);
    return {
      ...data, 
      commitLink: util.format(BuildContextGetter.GIT_PATH, data.commitHash)
    }
  }
  
  private findValidPath(): Nullable<string> {
    return BuildContextGetter.EXPECTED_PATHS.find((path) => {
      return fs.existsSync(path);
    });
  }
}