import { setupTest, startEngine, startClientInTmux, tmuxSendKeys, wait, tmuxCapturePane, waitForPaneText, teardownTest } from './test_utils';

export async function testGridNavigation(): Promise<void> {
  console.log("\nTest: GRID NAVIGATION");
  setupTest();
  const engine = await startEngine();
  await startClientInTmux();

  // Default location should be Row 0, Col 0
  let pane = await waitForPaneText("Selected: Grid 0, Row 0, Col 0", 5000);
  if (pane.includes("Selected: Grid 0, Row 0, Col 0")) {
    console.log("  PASS: Default selection at origin");
  } else {
    console.log("  FAIL: Expected 'Selected: Grid 0, Row 0, Col 0'");
    console.log("  Actual pane content:\n" + pane);
    engine.kill(); teardownTest();
    throw new Error("Grid navigation test failed");
  }

  // Move right then down
  tmuxSendKeys("looper", "0", "l");
  tmuxSendKeys("looper", "0", "j");
  await wait(200);
  pane = tmuxCapturePane("looper", "0");
  if (pane.includes("Selected: Grid 0, Row 1, Col 1")) {
    console.log("  PASS: Moved to Row 1, Col 1");
  } else {
    console.log("  FAIL: Expected 'Row 1, Col 1'");
    engine.kill(); teardownTest();
    throw new Error("Grid navigation test failed");
  }

  // Cycle back to origin
  tmuxSendKeys("looper", "0", "h");
  await wait(400);
  tmuxSendKeys("looper", "0", "k");
  await wait(400);
  pane = tmuxCapturePane("looper", "0");
  if (pane.includes("Selected: Grid 0, Row 0, Col 0")) {
    console.log("  PASS: Returned to origin");
  } else {
    console.log("  FAIL: Not at origin after h/k");
    engine.kill(); teardownTest();
    throw new Error("Grid navigation test failed");
  }

  engine.kill();
  teardownTest();
}