#!/usr/bin/env bash
set -euo pipefail

REPO_ROOT="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
TMP_ROOT="$(mktemp -d)"
trap 'rm -rf "${TMP_ROOT}"' EXIT

WORK_DIR="${TMP_ROOT}/workspace"
FAKE_BIN_DIR="${TMP_ROOT}/fake-bin"
TARGET_BIN_DIR="${TMP_ROOT}/target-bin"
SPACETIME_ROOT_DIR="${TMP_ROOT}/stdb"
OUTPUT_LOG="${TMP_ROOT}/prepare.log"

mkdir -p \
  "${WORK_DIR}" \
  "${FAKE_BIN_DIR}" \
  "${TARGET_BIN_DIR}" \
  "${SPACETIME_ROOT_DIR}/bin/current"

cat >"${FAKE_BIN_DIR}/curl" <<'EOF'
#!/usr/bin/env bash
echo "curl should not be called when target tools are already ready" >&2
exit 97
EOF
cat >"${FAKE_BIN_DIR}/wget" <<'EOF'
#!/usr/bin/env bash
echo "wget should not be called when target tools are already ready" >&2
exit 97
EOF
chmod +x "${FAKE_BIN_DIR}/curl" "${FAKE_BIN_DIR}/wget"

cat >"${TARGET_BIN_DIR}/otelcol-contrib" <<'EOF'
#!/usr/bin/env bash
echo "otelcol-contrib version 0.151.0"
EOF
chmod +x "${TARGET_BIN_DIR}/otelcol-contrib"

cat >"${SPACETIME_ROOT_DIR}/bin/current/spacetimedb-cli" <<'EOF'
#!/usr/bin/env bash
echo "spacetimedb-cli 2.4.1"
EOF
cat >"${SPACETIME_ROOT_DIR}/bin/current/spacetimedb-standalone" <<'EOF'
#!/usr/bin/env bash
echo "spacetimedb-standalone 2.4.1"
EOF
chmod +x \
  "${SPACETIME_ROOT_DIR}/bin/current/spacetimedb-cli" \
  "${SPACETIME_ROOT_DIR}/bin/current/spacetimedb-standalone"

if ! (
  cd "${WORK_DIR}"
  PATH="${FAKE_BIN_DIR}:${PATH}" \
    WORKSPACE="${WORK_DIR}" \
    PROVISION_TOOLS_DIR="provision-tools" \
    PROVISION_DOWNLOADS_DIR="downloads" \
    PROVISION_TOOLS_TMP_PARENT="${WORK_DIR}/.tmp/server-provision-tools" \
    PROVISION_REQUIRE_LOCAL_DOWNLOADS="true" \
    OTELCOL_TARGET_BIN="${TARGET_BIN_DIR}/otelcol-contrib" \
    OTELCOL_VERSION="0.151.0" \
    SPACETIME_ROOT="${SPACETIME_ROOT_DIR}" \
    SPACETIME_EXPECTED_VERSION="2.4.1" \
    "${REPO_ROOT}/scripts/prepare-server-provision-tools.sh" \
    >"${OUTPUT_LOG}" 2>&1
); then
  echo "[check-server-provision-tools] prepare-server-provision-tools.sh 执行失败。" >&2
  cat "${OUTPUT_LOG}" >&2
  exit 1
fi

grep -q "复用目标机已有 otelcol-contrib" "${OUTPUT_LOG}"
grep -q "复用目标机已有 SpacetimeDB 安装" "${OUTPUT_LOG}"
grep -q "otelcol-contrib 0.151.0 target existing" "${WORK_DIR}/provision-tools/MANIFEST.txt"
grep -q "spacetime target existing" "${WORK_DIR}/provision-tools/MANIFEST.txt"

test -x "${WORK_DIR}/provision-tools/otelcol-contrib"
test -x "${WORK_DIR}/provision-tools/spacetime/spacetime"
test -x "${WORK_DIR}/provision-tools/spacetime/bin/current/spacetimedb-cli"
test -x "${WORK_DIR}/provision-tools/spacetime/bin/current/spacetimedb-standalone"

if grep -q "下载 " "${OUTPUT_LOG}"; then
  echo "[check-server-provision-tools] 已有目标机工具时不应进入下载分支。" >&2
  cat "${OUTPUT_LOG}" >&2
  exit 1
fi

echo "[check-server-provision-tools] OK"