#!/usr/bin/env bash
set -Eeuo pipefail
root=$(cd "$(dirname "$0")/.." && pwd)
bash -n "$root/install.sh" "$root/scripts/tallynote-update.sh"
output=$(bash "$root/install.sh" --dry-run --release-base-url https://releases.example.test/releases)
grep -q 'dry-run' <<<"$output"
output=$(bash "$root/install.sh" --dry-run --version 1.2.3 --release-base-url https://releases.example.test/releases)
grep -q 'release: 1.2.3' <<<"$output"
if bash "$root/install.sh" --dry-run --release-base-url http://insecure.example.test/releases >/dev/null 2>&1; then
  echo 'expected non-HTTPS URL to fail' >&2
  exit 1
fi
tmp=$(mktemp -d)
cleanup_tmp() {
  if [[ -d "$tmp" ]]; then
    rm -r "$tmp" 2>/dev/null || true
  fi
}
trap cleanup_tmp EXIT
cat >"$tmp/uname" <<'EOF'
#!/usr/bin/env bash
printf 'i686\n'
EOF
chmod +x "$tmp/uname"
if TALLYNOTE_UNAME_BIN="$tmp/uname" bash "$root/install.sh" --dry-run >/dev/null 2>&1; then
  echo 'expected ia32 to fail' >&2
  exit 1
fi
if [[ "$(uname -s)" != Linux ]]; then
  if bash "$root/scripts/build-release.sh" 1.0.0 /tmp/tallynote-installer-release-test >/dev/null 2>&1; then
    echo 'expected non-Linux release build to fail on this host' >&2
    exit 1
  fi
fi

# Exercise installer helpers without mutating the host. Removing the final
# main invocation lets this subprocess source the exact production code.
installer_lib="$tmp/install-lib.sh"
sed '$d' "$root/install.sh" > "$installer_lib"
bash -c '
  script=$1
  set --
  source "$script"
  [[ "$APPLY" -eq 1 ]]
  [[ "$REQUIRE_SIGNATURE" == false ]]
' _ "$installer_lib"
bash -c '
  script=$1
  mode_dir=$2
  owner_parent=$3
  set --
  source "$script"
  mkdir -p "$mode_dir"
  chmod 700 "$mode_dir"
  [[ "$(stat_mode_bits "$mode_dir")" == 448 ]]
  mkdir -p "$owner_parent"
  if (assert_path_chain "$owner_parent/child") >/dev/null 2>&1; then
    echo "expected non-root path parent to fail" >&2
    exit 1
  fi
' _ "$installer_lib" "$tmp/mode" "$tmp/user-parent"

# Duplicate security-sensitive EnvironmentFile assignments are rejected even
# when the first value looks valid (systemd uses the later value).
duplicate_env="$tmp/duplicate.env"
printf '%s\n' 'TALLYNOTE_UPDATE_REQUIRE_SIGNATURE=true' 'TALLYNOTE_UPDATE_REQUIRE_SIGNATURE=false' > "$duplicate_env"
bash -c '
  script=$1
  env_file=$2
  set --
  source "$script"
  stat_uid() { printf "0"; }
  stat_mode_bits() { printf "384"; }
  if (validate_existing_env "$env_file") >/dev/null 2>&1; then
    echo "expected duplicate environment assignment to fail" >&2
    exit 1
  fi
' _ "$installer_lib" "$duplicate_env"

# A release archive is extracted under umask 077, then explicitly normalized
# so the tallynote system user can traverse and execute the shipped tree.
source_tmp="$tmp/source"
mkdir -p "$source_tmp/dist/server" "$source_tmp/bin" "$source_tmp/scripts" "$source_tmp/runtime/bin"
printf '%s\n' 'server' > "$source_tmp/dist/server/index.js"
printf '%s\n' '#!/bin/sh' > "$source_tmp/bin/tallynote"
printf '%s\n' '#!/bin/sh' > "$source_tmp/scripts/runner.sh"
printf '%s\n' 'node' > "$source_tmp/runtime/bin/node"
chmod 755 "$source_tmp/bin/tallynote" "$source_tmp/scripts/runner.sh" "$source_tmp/runtime/bin/node"
archive_tmp="$tmp/release.tar.gz"
tar -C "$source_tmp" -czf "$archive_tmp" .
bash -c '
  script=$1
  archive=$2
  destination=$3
  set --
  source "$script"
  safe_extract "$archive" "$destination"
  normalize_release_tree "$destination"
  [[ "$(stat_mode "$destination/dist")" == 755 ]]
  [[ "$(stat_mode "$destination/dist/server/index.js")" == 644 ]]
  [[ "$(stat_mode "$destination/bin/tallynote")" == 755 ]]
' _ "$installer_lib" "$archive_tmp" "$tmp/unpacked"

# A normal public-release install only needs the detached SHA-256 manifest;
# absence of a signature and public key must not block archive verification.
checksum_tmp="$tmp/SHA256SUMS"
(cd "$(dirname -- "$archive_tmp")" && sha256sum "$(basename -- "$archive_tmp")") > "$checksum_tmp"
bash -c '
  script=$1
  archive=$2
  checksum=$3
  set --
  source "$script"
  REQUIRE_SIGNATURE=false
  verify_archive "$archive" "$checksum" "" ""
' _ "$installer_lib" "$archive_tmp" "$checksum_tmp"

# Newline/control characters in release configuration must never become extra
# systemd EnvironmentFile assignments.
if TALLYNOTE_RELEASE_API_URL=$'https://git.awaioi.com/api/v1\nEVIL=1' bash "$root/install.sh" --dry-run >/dev/null 2>&1; then
  echo 'expected control characters in release URL to fail' >&2
  exit 1
fi

# The publisher is safe to exercise on every host in dry-run mode. When an
# OpenSSL build supports Ed25519, also verify the exact detached signature.
publisher_tmp=$(mktemp -d)
printf 'test-release' > "$publisher_tmp/tallynote-1.0.0-linux-x64-glibc.tar.gz"
if "$root/scripts/publish-gitea-release.sh" v1.0.0 "$publisher_tmp" --dry-run >/dev/null 2>&1; then
  test -s "$publisher_tmp/SHA256SUMS"
else
  echo 'publisher dry-run failed' >&2
  exit 1
fi
openssl_test_bin=${TALLYNOTE_OPENSSL_BIN:-$(command -v openssl || true)}
if [[ -n "$openssl_test_bin" ]] && "$openssl_test_bin" genpkey -algorithm ED25519 -out "$publisher_tmp/key" >/dev/null 2>&1; then
  TALLYNOTE_RELEASE_SIGNING_KEY_FILE="$publisher_tmp/key" TALLYNOTE_OPENSSL_BIN="$openssl_test_bin" \
    "$root/scripts/publish-gitea-release.sh" v1.0.0 "$publisher_tmp" --dry-run >/dev/null 2>&1
  "$openssl_test_bin" pkey -in "$publisher_tmp/key" -pubout -out "$publisher_tmp/pub" >/dev/null 2>&1
  "$openssl_test_bin" pkeyutl -verify -pubin -inkey "$publisher_tmp/pub" -rawin \
    -in "$publisher_tmp/SHA256SUMS" -sigfile "$publisher_tmp/SHA256SUMS.sig" >/dev/null 2>&1

  # Exercise the 404 -> create -> assets -> upload flow with a local curl
  # shim. The shim records argv and verifies the secret only arrives through
  # the temporary curl config file, never as a process argument.
  if command -v jq >/dev/null 2>&1; then
    fake_curl="$publisher_tmp/fake-curl"
    fake_trace="$publisher_tmp/curl-args"
    fake_config_seen="$publisher_tmp/curl-config-seen"
    cat > "$fake_curl" <<'EOF'
#!/usr/bin/env bash
set -Eeuo pipefail
out=''; format=''; method='GET'; url=''; previous=''; config=''
for arg in "$@"; do
  case "$previous" in
    out) out=$arg; previous=''; continue ;;
    format) format=$arg; previous=''; continue ;;
    method) method=$arg; previous=''; continue ;;
    config) config=$arg; previous=''; continue ;;
  esac
  case "$arg" in
    -o) previous=out ;;
    -w) previous=format ;;
    -X) previous=method ;;
    --config) previous=config ;;
    -d*|-F*) method=POST ;;
    http://*|https://*) url=$arg ;;
  esac
done
printf '%s\n' "$*" >> "$TALLYNOTE_FAKE_CURL_TRACE"
[[ "$*" != *"$TALLYNOTE_FAKE_TOKEN"* ]] || { echo 'token leaked in curl argv' >&2; exit 91; }
[[ -n "$config" && -s "$config" ]] || { echo 'curl auth config missing' >&2; exit 92; }
grep -q "Authorization: token $TALLYNOTE_FAKE_TOKEN" "$config"
printf '%s\n' seen > "$TALLYNOTE_FAKE_CURL_CONFIG_SEEN"
code=200; body='{}'
if [[ "$url" == */releases/tags/* ]]; then
  if [[ ! -f "$TALLYNOTE_FAKE_RELEASE_CREATED" ]]; then code=404; body='{}'; else code=200; body='{"id":42}'; fi
elif [[ "$url" == */releases && "$method" == POST ]]; then
  printf '%s' created > "$TALLYNOTE_FAKE_RELEASE_CREATED"
  code=201; body='{"id":42}'
elif [[ "$url" == */assets && "$method" == GET ]]; then
  code=200; body='[]'
elif [[ "$url" == */assets\?name=* ]]; then
  code=201; body='{"id":1}'
elif [[ "$method" == DELETE ]]; then
  code=204; body=''
fi
if [[ -n "$out" ]]; then
  printf '%s' "$body" > "$out"
else
  printf '%s' "$body"
fi
if [[ "$format" == '%{http_code}' ]]; then
  printf '%s' "$code"
fi
EOF
    chmod 700 "$fake_curl"
    TALLYNOTE_FAKE_CURL_TRACE="$fake_trace" TALLYNOTE_FAKE_CURL_CONFIG_SEEN="$fake_config_seen" \
      TALLYNOTE_FAKE_RELEASE_CREATED="$publisher_tmp/release-created" TALLYNOTE_FAKE_TOKEN='secret-token' \
      TALLYNOTE_CURL_BIN="$fake_curl" GITEA_API_URL='https://gitea.example/api/v1' \
      GITHUB_REPOSITORY='awaioi/TallyNote' GITEA_TOKEN='secret-token' \
      TALLYNOTE_RELEASE_SIGNING_KEY_FILE="$publisher_tmp/key" \
      TALLYNOTE_OPENSSL_BIN="$openssl_test_bin" \
      "$root/scripts/publish-gitea-release.sh" v1.0.0 "$publisher_tmp" >/dev/null
    if grep -q 'secret-token' "$fake_trace"; then
      echo 'token leaked in curl argv' >&2
      exit 1
    fi
    test -s "$fake_config_seen"
  fi
fi
if [[ -d "$publisher_tmp" ]]; then
  rm -r "$publisher_tmp" 2>/dev/null || true
fi
printf '%s\n' 'installer shell tests passed'