#!/bin/sh
set -eu

cd "$(dirname "$0")/.."

mode=${1:-run}
case "$mode" in
  run|--live-collision-test) ;;
  *) echo "usage: $0 [--live-collision-test]" >&2; exit 2 ;;
esac

keep_resources=${KEEP_SMOKE_RESOURCES:-0}
if [ "${SMOKE_PROJECT+x}" = x ]; then
  echo "SMOKE_PROJECT is not accepted; the smoke always generates an owned namespace" >&2
  exit 2
fi
secret_dir=$(mktemp -d "${TMPDIR:-/tmp}/thothii-vector-smoke.XXXXXX")
suffix=$(basename "$secret_dir" | tr -cd 'a-z0-9')
smoke_project="thothii-vector-smoke-$(date +%s)-$$-$suffix"
smoke_owner="$smoke_project-owner"
marker="local-vector-$smoke_project"

for secret in bootstrap migrator reader writer; do
  password="smoke-${secret}-${smoke_project}"
  printf '%s' "$password" >"$secret_dir/$secret"
  chmod 0600 "$secret_dir/$secret"
done

export THT_VECTOR_BOOTSTRAP_PASSWORD_SECRET_FILE="$secret_dir/bootstrap"
export THT_VECTOR_MIGRATOR_PASSWORD_SECRET_FILE="$secret_dir/migrator"
export THT_VECTOR_READER_PASSWORD_SECRET_FILE="$secret_dir/reader"
export THT_VECTOR_WRITER_PASSWORD_SECRET_FILE="$secret_dir/writer"
export THT_VECTOR_READER_PASSWORD="smoke-reader-${smoke_project}"
export THT_VECTOR_WRITER_PASSWORD="smoke-writer-${smoke_project}"
export THT_VECTOR_BOOTSTRAP_USER=thoth_bootstrap_smoke
export THOTH_SMOKE_OWNER="$smoke_owner"

compose() {
  docker compose --project-name "$smoke_project" --profile local-vector "$@"
}

resource_ids() {
  case "$1" in
    container) docker ps -aq --filter "label=com.docker.compose.project=$smoke_project" ;;
    volume) docker volume ls -q --filter "label=com.docker.compose.project=$smoke_project" ;;
    network) docker network ls -q --filter "label=com.docker.compose.project=$smoke_project" ;;
  esac
}

resource_owner() {
  case "$1" in
    container) docker inspect --format '{{ index .Config.Labels "io.thothii.smoke-owner" }}' "$2" ;;
    volume) docker volume inspect --format '{{ index .Labels "io.thothii.smoke-owner" }}' "$2" ;;
    network) docker network inspect --format '{{ index .Labels "io.thothii.smoke-owner" }}' "$2" ;;
  esac
}

assert_no_collision() {
  for kind in container volume network; do
    ids=$(resource_ids "$kind")
    if [ -n "$ids" ]; then
      echo "refusing existing Compose project resources for generated namespace $smoke_project" >&2
      return 1
    fi
  done
}

verify_owned_resources() {
  for kind in container volume network; do
    for id in $(resource_ids "$kind"); do
      owner=$(resource_owner "$kind" "$id" 2>/dev/null || true)
      if [ "$owner" != "$smoke_owner" ]; then
        echo "refusing cleanup of resource not owned by this smoke: $kind $id" >&2
        return 1
      fi
    done
  done
}

cleanup() {
  if [ "$keep_resources" = "1" ]; then
    echo "Keeping smoke resources for project $smoke_project (KEEP_SMOKE_RESOURCES=1)." >&2
  else
    if verify_owned_resources; then
      compose down --volumes >/dev/null 2>&1 || true
    fi
  fi
  rm -rf "$secret_dir"
}
trap cleanup EXIT HUP INT TERM

if [ "$mode" = "--live-collision-test" ]; then
  collision_volume="${smoke_project}-collision"
  docker volume create \
    --label "com.docker.compose.project=$smoke_project" \
    --label 'io.thothii.smoke-owner=foreign-owner' \
    "$collision_volume" >/dev/null
  if assert_no_collision 2>/dev/null; then
    echo "live collision probe was not detected" >&2
    docker volume rm "$collision_volume" >/dev/null
    exit 1
  fi
  docker volume rm "$collision_volume" >/dev/null
  echo "live local-vector project collision refusal passed."
  exit 0
fi

probe_vector() {
  compose exec -T core /opt/venv/bin/python - "$marker" "$1" <<'PY'
import hashlib
import os
import sys

from tht.adapters.vector.pgvector import PgVectorStore
from tht.config import DatabaseConfig
from tht.ports.vector import VectorWriteRecord
from tht.vectorstore.records import VectorRecord

marker = sys.argv[1]
mode = sys.argv[2]
database = "thoth"
host = "vector-db"

def credential(role: str) -> DatabaseConfig:
    return DatabaseConfig(
        host=host,
        port=5432,
        database=database,
        schema="vectors",
        user=f"thoth_vector_{role}",
        password=os.environ[f"THT_VECTOR_{role.upper()}_PASSWORD"],
    )

store = PgVectorStore(credential("reader"), credential("writer"), expected_dimension=768)
health = store.health()
assert health.ok, health
assert health.read_reachable is True and health.write_reachable is True, health

record = VectorRecord(
    id=marker,
    kind="memory",
    ref=marker,
    title="Local vector persistence smoke",
    content=marker,
    metadata={"smoke": True},
)
embedding = [1.0] + [0.0] * 767
if mode == "write":
    store.upsert(
        "memory",
        [VectorWriteRecord(record, embedding, hashlib.sha256(marker.encode()).hexdigest())],
    )
hits = store.search(["memory"], embedding, limit=1, kinds=["memory"])
assert hits and hits[0].id == marker, hits
print(f"role health and persisted search passed for {marker} ({mode})")
PY
}

assert_no_collision
compose config --quiet
services=$(compose config --services)
printf '%s\n' "$services" | grep -qx vector-db
printf '%s\n' "$services" | grep -qx vector-reconcile
printf '%s\n' "$services" | grep -qx vector-migrate

compose up --build --wait vector-reconcile vector-migrate core
migration_status=$(compose run --rm --no-deps vector-migrate)
printf '%s\n' "$migration_status" | grep -q '"pending": \[\]'
migrator_flags=$(compose run --rm --no-deps --entrypoint sh vector-reconcile -ec '
  export PGPASSWORD=$(cat /run/secrets/vector_bootstrap_password)
  psql -At --host vector-db --username "$THT_VECTOR_BOOTSTRAP_USER" --dbname thoth \
    --command "SELECT (NOT rolcreaterole) AND (NOT rolcreatedb) AND (NOT rolsuper) FROM pg_roles WHERE rolname = '\''thoth_vector_migrator'\''"
')
test "$migrator_flags" = t
probe_vector write

old_reader_password=$THT_VECTOR_READER_PASSWORD
for secret in migrator reader writer; do
  password="rotated-${secret}-${smoke_project}"
  printf '%s' "$password" >"$secret_dir/$secret"
done
export THT_VECTOR_READER_PASSWORD="rotated-reader-${smoke_project}"
export THT_VECTOR_WRITER_PASSWORD="rotated-writer-${smoke_project}"

compose run --rm vector-reconcile
rotation_status=$(compose run --rm --no-deps vector-migrate)
printf '%s\n' "$rotation_status" | grep -q '"pending": \[\]'
if compose run --rm --no-deps --entrypoint psql \
    -e PGPASSWORD="$old_reader_password" vector-reconcile \
    --host vector-db --username thoth_vector_reader --dbname thoth --command 'SELECT 1' \
    >/dev/null 2>&1; then
  echo "old reader credential still works after rotation" >&2
  exit 1
fi

compose up --force-recreate --no-deps --wait core
probe_vector read

old_bootstrap_password=$(cat "$secret_dir/bootstrap")
printf '%s' "wrong-bootstrap-${smoke_project}" >"$secret_dir/bootstrap-wrong"
printf '%s' "next-bootstrap-'quoted-${smoke_project}" >"$secret_dir/bootstrap-next"
cp "$secret_dir/bootstrap" "$secret_dir/bootstrap-before-negative"
printf 'invalid bootstrap password\n' >"$secret_dir/bootstrap-whitespace"
if COMPOSE_PROJECT_NAME="$smoke_project" \
    ./scripts/vector-rotate-bootstrap-password.sh \
    "$secret_dir/bootstrap" "$secret_dir/bootstrap-whitespace" \
    >/dev/null 2>&1; then
  echo "bootstrap rotation accepted whitespace in a secret" >&2
  exit 1
fi
cmp "$secret_dir/bootstrap" "$secret_dir/bootstrap-before-negative"
compose run --rm --no-deps --entrypoint psql \
  -e PGPASSWORD="$old_bootstrap_password" vector-reconcile \
  --host vector-db --username "$THT_VECTOR_BOOTSTRAP_USER" --dbname thoth \
  --command 'SELECT 1' >/dev/null

if COMPOSE_PROJECT_NAME="$smoke_project" \
    ./scripts/vector-rotate-bootstrap-password.sh \
    "$secret_dir/bootstrap-wrong" "$secret_dir/bootstrap-next" \
    >/dev/null 2>&1; then
  echo "bootstrap rotation accepted the wrong old secret" >&2
  exit 1
fi
cmp "$secret_dir/bootstrap" "$secret_dir/bootstrap-before-negative"

COMPOSE_PROJECT_NAME="$smoke_project" \
  ./scripts/vector-rotate-bootstrap-password.sh \
  "$secret_dir/bootstrap" "$secret_dir/bootstrap-next"
new_bootstrap_password=$(cat "$secret_dir/bootstrap")
test "$new_bootstrap_password" != "$old_bootstrap_password"
if compose run --rm --no-deps --entrypoint psql \
    -e PGPASSWORD="$old_bootstrap_password" vector-reconcile \
    --host vector-db --username "$THT_VECTOR_BOOTSTRAP_USER" --dbname thoth --command 'SELECT 1' \
    >/dev/null 2>&1; then
  echo "old bootstrap credential still works after rotation" >&2
  exit 1
fi
compose run --rm --no-deps --entrypoint psql \
  -e PGPASSWORD="$new_bootstrap_password" vector-reconcile \
  --host vector-db --username "$THT_VECTOR_BOOTSTRAP_USER" --dbname thoth --command 'SELECT 1' \
  >/dev/null
compose run --rm vector-reconcile
bootstrap_rotation_status=$(compose run --rm --no-deps vector-migrate)
printf '%s\n' "$bootstrap_rotation_status" | grep -q '"pending": \[\]'
compose up --force-recreate --no-deps --wait core
probe_vector read

compose restart vector-db core
compose up --wait vector-db core
probe_vector read

echo "Local pgvector runtime/bootstrap rotation, least-privilege roles, and persistence passed."