#!/bin/sh
# prepare-commit-msg: append build + test status to every commit message.
# Skipped for merge, squash, and rebase commits.

COMMIT_MSG_FILE="$1"
COMMIT_SOURCE="${2:-}"

case "$COMMIT_SOURCE" in
  merge|squash) exit 0 ;;
esac

BUILD_STATUS="pass"
TEST_STATUS="pass"
TEST_DETAIL=""

STATUS_DIR=${AGENT_STATUS_DIR:-${CLAWDIE_VAR_DIR:-"$(pwd)/tmp/status"}}
BUILD_PATH="$STATUS_DIR/build-status.json"
TEST_PATH="$STATUS_DIR/test-status.json"

sh scripts/write-test-build-status.sh >/dev/null 2>&1 || true

FOOTER=$(node -e '
  const fs = require("fs");
  const [buildPath, testPath] = process.argv.slice(1);
  function readStatus(filePath) {
    try {
      return JSON.parse(fs.readFileSync(filePath, "utf8"));
    } catch {
      return null;
    }
  }
  function toFooterStatus(value) {
    if (value === "ok") return "pass";
    if (value === "fail") return "FAIL";
    return "unknown";
  }
  const build = readStatus(buildPath);
  const tests = readStatus(testPath);
  let testDetail = "";
  if (tests?.status === "ok" && typeof tests.totalTests === "number") {
    const files =
      typeof tests.totalFiles === "number" && tests.totalFiles > 0
        ? ` (${tests.totalFiles} files)`
        : "";
    testDetail = `${tests.totalTests} passed${files}`;
  } else if (
    tests?.status === "fail" &&
    typeof tests.failingTests === "number"
  ) {
    testDetail = `${tests.failingTests} failed`;
  }
  const footer =
    `Build: ${toFooterStatus(build?.status)} | Tests: ${toFooterStatus(tests?.status)}` +
    (testDetail ? ` — ${testDetail}` : "");
  process.stdout.write(footer);
' "$BUILD_PATH" "$TEST_PATH")

node -e '
  const fs = require("fs");
  const file = process.argv[1];
  let text = fs.readFileSync(file, "utf8");
  const footerRe = /\s*\n---\n(?:\s*\n)*(?:Build:[^\n]*(?:\n(?:\s*\n)*Tests:[^\n]*)?|Tests:[^\n]*)(?:\s*\n)*$/u;
  let previous;
  do {
    previous = text;
    text = text.replace(footerRe, "");
  } while (text !== previous);
  fs.writeFileSync(file, text.trimEnd() + "\n");
' "$COMMIT_MSG_FILE"

{
  printf '\n---\n'
  printf '%s\n' "$FOOTER"
} >> "$COMMIT_MSG_FILE"

# Also append to local log (gitignored, survives between pushes)
COMMIT_SUBJECT=$(head -1 "$COMMIT_MSG_FILE")
TIMESTAMP=$(./scripts/date-format.sh display-ts 2>/dev/null || date '+%d.%b.%Y %H:%M:%S' | tr '[:upper:]' '[:lower:]')
mkdir -p logs
printf '%s | %s | %s\n' "$TIMESTAMP" "$FOOTER" "$COMMIT_SUBJECT" >> logs/test-runs.log