import type { TestRunExecutionResult } from "./execute-test-run-plan.ts";

const MAX_OUTPUT_CHARS = 12_000;

/**
 * Builds the user message sent to the model after a `/test --comment` run:
 * the executed command, exit state, and the captured output, plus a request
 * to summarize the results and identify the problem.
 */
export function buildTestAnalysisRequest(
	result: TestRunExecutionResult,
): string {
	return [
		`I ran the test command \`${result.displayCommand}\` (exit code ${result.exitCode}${result.killed ? ", killed" : ""}).`,
		"",
		"stdout:",
		capOutput(result.stdout),
		"",
		"stderr:",
		capOutput(result.stderr),
		"",
		"Summarize the test results and identify what the problem is, if any.",
	].join("\n");
}

function capOutput(output: string): string {
	if (output.length <= MAX_OUTPUT_CHARS) return output;
	return `${output.slice(0, MAX_OUTPUT_CHARS)}\n[truncated]`;
}