// Additive meeting-transcript schema used by the feature's one-time lazy ensure.
import type { DatabaseSync } from "node:sqlite";
import {
  openOpenClawStateDatabase,
  runOpenClawStateWriteTransaction,
  type OpenClawStateDatabaseOptions,
} from "../state/openclaw-state-db.js";

const ensuredDatabases = new WeakSet<DatabaseSync>();
const MEETING_TRANSCRIPTS_SCHEMA_SQL = `
CREATE TABLE IF NOT EXISTS meeting_transcript_sessions (
  session_id TEXT NOT NULL,
  started_at TEXT NOT NULL,
  selector TEXT NOT NULL UNIQUE,
  export_key TEXT NOT NULL,
  session_slug TEXT NOT NULL,
  provider_id TEXT NOT NULL,
  title TEXT,
  source_json TEXT NOT NULL,
  stopped_at TEXT,
  metadata_json TEXT,
  export_manifest_json TEXT NOT NULL DEFAULT '{}',
  export_pending_json TEXT NOT NULL DEFAULT '[]',
  next_utterance_seq INTEGER NOT NULL DEFAULT 0 CHECK (next_utterance_seq >= 0),
  created_at_ms INTEGER NOT NULL CHECK (created_at_ms >= 0),
  updated_at_ms INTEGER NOT NULL CHECK (updated_at_ms >= 0),
  PRIMARY KEY (session_id, started_at)
) STRICT;

CREATE INDEX IF NOT EXISTS idx_meeting_transcript_sessions_started
  ON meeting_transcript_sessions(started_at DESC, session_id);

CREATE INDEX IF NOT EXISTS idx_meeting_transcript_sessions_id
  ON meeting_transcript_sessions(session_id, started_at DESC);

CREATE INDEX IF NOT EXISTS idx_meeting_transcript_sessions_slug
  ON meeting_transcript_sessions(session_slug, started_at DESC);

CREATE INDEX IF NOT EXISTS idx_meeting_transcript_sessions_export_key
  ON meeting_transcript_sessions(export_key);

CREATE TABLE IF NOT EXISTS meeting_transcript_utterances (
  session_id TEXT NOT NULL,
  session_started_at TEXT NOT NULL,
  sequence INTEGER NOT NULL CHECK (sequence >= 0),
  utterance_id TEXT,
  started_at TEXT,
  ended_at TEXT,
  speaker_id TEXT,
  speaker_label TEXT,
  text TEXT NOT NULL,
  final INTEGER CHECK (final IN (0, 1)),
  metadata_json TEXT,
  PRIMARY KEY (session_id, session_started_at, sequence),
  FOREIGN KEY (session_id, session_started_at)
    REFERENCES meeting_transcript_sessions(session_id, started_at)
    ON DELETE CASCADE
) STRICT;

CREATE TABLE IF NOT EXISTS meeting_transcript_summaries (
  session_id TEXT NOT NULL,
  session_started_at TEXT NOT NULL,
  generated_at TEXT,
  summary_json TEXT,
  markdown TEXT,
  utterance_count INTEGER NOT NULL CHECK (utterance_count >= 0),
  PRIMARY KEY (session_id, session_started_at),
  FOREIGN KEY (session_id, session_started_at)
    REFERENCES meeting_transcript_sessions(session_id, started_at)
    ON DELETE CASCADE,
  CHECK (summary_json IS NOT NULL OR markdown IS NOT NULL)
) STRICT;
`;

export function ensureMeetingTranscriptsSchema(options: OpenClawStateDatabaseOptions = {}): void {
  const database = openOpenClawStateDatabase(options);
  if (ensuredDatabases.has(database.db)) {
    return;
  }
  runOpenClawStateWriteTransaction(({ db }) => db.exec(MEETING_TRANSCRIPTS_SCHEMA_SQL), options, {
    operationLabel: "meeting-transcripts.schema.ensure",
  });
  ensuredDatabases.add(database.db);
}