import {iterateCursor, reqAsPromise} from "./utils.js"; import {RoomMember, EVENT_TYPE as MEMBER_EVENT_TYPE} from "../../room/members/RoomMember.js"; import {RoomMemberStore} from "./stores/RoomMemberStore.js"; import {SessionStore} from "./stores/SessionStore.js"; // FUNCTIONS SHOULD ONLY BE APPENDED!! // the index in the array is the database version export const schema = [ createInitialStores, createMemberStore, migrateSession, createIdentityStores, createOlmSessionStore, ]; // TODO: how to deal with git merge conflicts of this array? // how do we deal with schema updates vs existing data migration in a way that //v1 function createInitialStores(db) { db.createObjectStore("session", {keyPath: "key"}); // any way to make keys unique here? (just use put?) db.createObjectStore("roomSummary", {keyPath: "roomId"}); // need index to find live fragment? prooobably ok without for now //key = room_id | fragment_id db.createObjectStore("timelineFragments", {keyPath: "key"}); //key = room_id | fragment_id | event_index const timelineEvents = db.createObjectStore("timelineEvents", {keyPath: "key"}); //eventIdKey = room_id | event_id timelineEvents.createIndex("byEventId", "eventIdKey", {unique: true}); //key = room_id | event.type | event.state_key, db.createObjectStore("roomState", {keyPath: "key"}); db.createObjectStore("pendingEvents", {keyPath: "key"}); } //v2 async function createMemberStore(db, txn) { const roomMembers = new RoomMemberStore(db.createObjectStore("roomMembers", {keyPath: "key"})); // migrate existing member state events over const roomState = txn.objectStore("roomState"); await iterateCursor(roomState.openCursor(), entry => { if (entry.event.type === MEMBER_EVENT_TYPE) { roomState.delete(entry.key); const member = RoomMember.fromMemberEvent(entry.roomId, entry.event); if (member) { roomMembers.set(member.serialize()); } } }); } //v3 async function migrateSession(db, txn) { const session = txn.objectStore("session"); try { const PRE_MIGRATION_KEY = 1; const entry = await reqAsPromise(session.get(PRE_MIGRATION_KEY)); if (entry) { session.delete(PRE_MIGRATION_KEY); const {syncToken, syncFilterId, serverVersions} = entry.value; const store = new SessionStore(session); store.set("sync", {token: syncToken, filterId: syncFilterId}); store.set("serverVersions", serverVersions); } } catch (err) { txn.abort(); console.error("could not migrate session", err.stack); } } //v4 function createIdentityStores(db) { db.createObjectStore("userIdentities", {keyPath: "userId"}); db.createObjectStore("deviceIdentities", {keyPath: "key"}); } //v5 function createOlmSessionStore(db) { db.createObjectStore("olmSessions", {keyPath: "key"}); }