import { DiagnosticsMessage, FixItHint } from '@dev-build-deploy/diagnose-it';
const lines = `steps:
  - uses: actions/checkout@v2
  - neds: [build, test]
    - uses: actions/setup-node@v2`;
  
// Example use case
const message = DiagnosticsMessage.createError(
  "example.yaml",
  {
    text: "Invalid keyword 'neds'",
    linenumber: 9,
    column: 5
  }
)
  // Add context to the diagnostics message
  .setContext(7, lines)
  // Add a FixIt Hint
  .addFixitHint(FixItHint.createReplacement({ index: 5, length: 4 }, "needs"));

// Convert to string
console.log(message.toString());

// Apply FixIt Hints
console.log("Results after applying FixIt Hints:", message.applyFixitHints());

// Throw as an Error
throw message;

import * as diagnoseIt from '@dev-build-deploy/diagnose-it';

for await(const message of diagnoseIt.extractFromFile("build.log")) {
  if (message.toJSON().type === "error") {
    // Oh noes!
  }
}