469 lines
18 KiB
Dart
469 lines
18 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:drift/drift.dart';
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import 'package:drift/native.dart';
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import 'package:path/path.dart' as p;
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import 'package:path_provider/path_provider.dart';
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part 'database.g.dart';
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// ── Tables ────────────────────────────────────────────────────────────────────
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class Accounts extends Table {
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TextColumn get id => text()();
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TextColumn get displayName => text()();
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TextColumn get email => text()();
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TextColumn get imapHost => text()();
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IntColumn get imapPort => integer()();
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BoolColumn get imapSsl => boolean()();
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TextColumn get smtpHost => text()();
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IntColumn get smtpPort => integer()();
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BoolColumn get smtpSsl => boolean()();
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// Added in schema v2:
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TextColumn get accountType => text().withDefault(const Constant('imap'))();
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TextColumn get jmapUrl => text().nullable()();
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// Added in schema v3:
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TextColumn get username => text().withDefault(const Constant(''))();
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// Added in schema v13:
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BoolColumn get verbose => boolean().withDefault(const Constant(false))();
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// Added in schema v15: ManageSieve (RFC 5804) settings for IMAP accounts.
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TextColumn get manageSieveHost => text().withDefault(const Constant(''))();
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IntColumn get manageSievePort =>
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integer().withDefault(const Constant(4190))();
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BoolColumn get manageSieveSsl =>
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boolean().withDefault(const Constant(true))();
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// Added in schema v16: tri-state probe result.
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// null = not probed yet (treat as available; show UI)
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// true = probe succeeded; show ManageSieve UI
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// false = probe failed; hide ManageSieve UI (server doesn't support it)
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BoolColumn get manageSieveAvailable => boolean().nullable()();
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@override
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Set<Column> get primaryKey => {id};
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}
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@DataClassName('MailboxRow')
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class Mailboxes extends Table {
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TextColumn get id => text()();
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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TextColumn get path => text()();
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TextColumn get name => text()();
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IntColumn get unreadCount => integer().withDefault(const Constant(0))();
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IntColumn get totalCount => integer().withDefault(const Constant(0))();
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// Added in schema v8: JMAP role (e.g. "inbox", "sent", "trash").
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TextColumn get role => text().nullable()();
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@override
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Set<Column> get primaryKey => {id};
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}
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class Emails extends Table {
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TextColumn get id => text()();
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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TextColumn get mailboxPath => text()();
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IntColumn get uid => integer()();
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TextColumn get subject => text().nullable()();
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DateTimeColumn get sentAt => dateTime().nullable()();
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DateTimeColumn get receivedAt => dateTime()();
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// JSON-encoded List<{name,email}>
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TextColumn get fromJson => text().withDefault(const Constant('[]'))();
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TextColumn get toAddresses => text().withDefault(const Constant('[]'))();
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TextColumn get ccJson => text().withDefault(const Constant('[]'))();
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TextColumn get preview => text().nullable()();
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BoolColumn get isSeen => boolean().withDefault(const Constant(false))();
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BoolColumn get isFlagged => boolean().withDefault(const Constant(false))();
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BoolColumn get hasAttachment =>
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boolean().withDefault(const Constant(false))();
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// Added in schema v14: email threading.
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TextColumn get threadId => text().nullable()();
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TextColumn get messageId => text().nullable()();
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TextColumn get inReplyTo => text().nullable()();
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// Space-separated list of Message-IDs (RFC 2822 References header).
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TextColumn get references => text().nullable()();
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// Added in schema v22:
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DateTimeColumn get snoozedUntil => dateTime().nullable()();
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TextColumn get snoozedFromMailboxPath => text().nullable()();
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// Added in schema v23: RFC 2369 List-Unsubscribe header value.
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TextColumn get listUnsubscribeHeader => text().nullable()();
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@override
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Set<Column> get primaryKey => {id};
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}
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class EmailBodies extends Table {
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TextColumn get emailId =>
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text().references(Emails, #id, onDelete: KeyAction.cascade)();
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TextColumn get textBody => text().nullable()();
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TextColumn get htmlBody => text().nullable()();
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// JSON-encoded List<{filename,contentType,size}>
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TextColumn get attachmentsJson => text().withDefault(const Constant('[]'))();
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// Added in schema v9: when the body was last fetched from the server.
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// Null for rows cached before this column was added (treated as expired).
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DateTimeColumn get cachedAt => dateTime().nullable()();
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// Added in schema v20: raw or parsed headers
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TextColumn get headersJson => text().nullable()();
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@override
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Set<Column> get primaryKey => {emailId};
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}
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@DataClassName('ThreadRow')
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class Threads extends Table {
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TextColumn get id => text()(); // the threadId
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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TextColumn get mailboxPath => text()();
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TextColumn get subject => text().nullable()();
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DateTimeColumn get latestDate => dateTime()();
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IntColumn get messageCount => integer().withDefault(const Constant(1))();
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BoolColumn get hasUnread => boolean().withDefault(const Constant(false))();
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BoolColumn get isFlagged => boolean().withDefault(const Constant(false))();
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// JSON-encoded List<{name,email}>
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TextColumn get participantsJson => text().withDefault(const Constant('[]'))();
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TextColumn get preview => text().nullable()();
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TextColumn get latestEmailId => text()();
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TextColumn get emailIdsJson => text().withDefault(const Constant('[]'))();
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@override
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Set<Column> get primaryKey => {accountId, mailboxPath, id};
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}
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/// Protocol-agnostic outbound change queue.
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/// Local mutations are written here before being sent to the server,
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/// enabling offline-first behaviour and durable retries.
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@DataClassName('PendingChangeRow')
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class PendingChanges extends Table {
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IntColumn get id => integer().autoIncrement()();
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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TextColumn get resourceType => text()();
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TextColumn get resourceId => text()();
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// "flag_seen" | "flag_flagged" | "move" | "delete"
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TextColumn get changeType => text()();
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// JSON payload, e.g. {"seen": true} or {"dest": "Archive"}
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TextColumn get payload => text()();
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DateTimeColumn get createdAt => dateTime()();
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IntColumn get attempts => integer().withDefault(const Constant(0))();
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TextColumn get lastError => text().nullable()();
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}
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/// Sync checkpoint per (account, resource type).
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/// Stores the server-side state token used for incremental sync.
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/// For JMAP: the opaque `state` string from Mailbox/get or Email/get.
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/// For IMAP: a JSON object with last-synced UID / MODSEQ per mailbox.
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@DataClassName('SyncStateRow')
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class SyncStates extends Table {
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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TextColumn get resourceType => text()();
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TextColumn get state => text()();
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DateTimeColumn get syncedAt => dateTime()();
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@override
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Set<Column> get primaryKey => {accountId, resourceType};
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}
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/// Lightweight audit trail for each sync cycle.
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/// Useful for debugging and surfacing "last synced" timestamps in the UI.
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@DataClassName('SyncLogRow')
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class SyncLogs extends Table {
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IntColumn get id => integer().autoIncrement()();
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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// "ok" | "error"
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TextColumn get result => text()();
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TextColumn get errorMessage => text().nullable()();
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// "imap" | "jmap"
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TextColumn get protocol => text().withDefault(const Constant(''))();
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IntColumn get itemsSynced => integer().withDefault(const Constant(0))();
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IntColumn get mailboxesSynced => integer().withDefault(const Constant(0))();
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IntColumn get pendingFlushed => integer().withDefault(const Constant(0))();
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IntColumn get emailsSkipped => integer().withDefault(const Constant(0))();
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IntColumn get bytesTransferred => integer().withDefault(const Constant(0))();
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DateTimeColumn get startedAt => dateTime()();
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DateTimeColumn get finishedAt => dateTime()();
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// Added in schema v13: raw protocol log when account.verbose == true.
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TextColumn get protocolLog => text().nullable()();
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}
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/// Per-mailbox breakdown for a single sync cycle.
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/// Each row is a child of one SyncLogs row.
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@DataClassName('SyncLogMailboxRow')
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class SyncLogMailboxes extends Table {
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IntColumn get id => integer().autoIncrement()();
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IntColumn get syncLogId =>
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integer().references(SyncLogs, #id, onDelete: KeyAction.cascade)();
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TextColumn get mailboxPath => text()();
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IntColumn get fetched => integer().withDefault(const Constant(0))();
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IntColumn get skipped => integer().withDefault(const Constant(0))();
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IntColumn get bytesTransferred => integer().withDefault(const Constant(0))();
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}
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/// Stores the result of the periodic "ground truth" verification.
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@DataClassName('SyncHealthRow')
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class SyncHealth extends Table {
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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DateTimeColumn get lastVerifiedAt => dateTime()();
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BoolColumn get isHealthy => boolean()();
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// JSON summary of discrepancies (missingLocally, missingOnServer, etc.)
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TextColumn get discrepancySummary => text().nullable()();
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@override
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Set<Column> get primaryKey => {accountId};
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}
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/// Auto-saved compose drafts — persisted across app restarts.
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class Drafts extends Table {
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IntColumn get id => integer().autoIncrement()();
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TextColumn get accountId => text().nullable()();
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/// Set for replies/reply-alls; null for new messages.
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TextColumn get replyToEmailId => text().nullable()();
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TextColumn get toText => text().withDefault(const Constant(''))();
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TextColumn get ccText => text().withDefault(const Constant(''))();
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TextColumn get subjectText => text().withDefault(const Constant(''))();
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TextColumn get bodyText => text().withDefault(const Constant(''))();
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DateTimeColumn get updatedAt => dateTime()();
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// Added in schema v24: IMAP UID string ("mailbox:uid") on the server.
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TextColumn get imapServerId => text().nullable()();
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}
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@DataClassName('UndoActionRow')
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class UndoActions extends Table {
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TextColumn get id => text()();
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TextColumn get accountId =>
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text().references(Accounts, #id, onDelete: KeyAction.cascade)();
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// JSON-encoded UndoAction
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TextColumn get dataJson => text()();
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DateTimeColumn get createdAt => dateTime()();
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@override
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Set<Column> get primaryKey => {id};
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}
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// ── Database ──────────────────────────────────────────────────────────────────
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@DriftDatabase(
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tables: [
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Accounts,
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Mailboxes,
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Emails,
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EmailBodies,
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Threads,
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Drafts,
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SyncStates,
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PendingChanges,
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SyncLogs,
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SyncLogMailboxes,
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SyncHealth,
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UndoActions,
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],
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)
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class AppDatabase extends _$AppDatabase {
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AppDatabase([QueryExecutor? executor]) : super(executor ?? _openConnection());
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@override
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int get schemaVersion => 24;
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@override
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MigrationStrategy get migration => MigrationStrategy(
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onUpgrade: (m, from, to) async {
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// NOTE: m.createTable(T) creates the LATEST version of table T.
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// If you later add a column C to T in version X, you must guard
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// addColumn(T, T.C) with `if (from >= creationVersionOfT && from < X)`.
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if (from < 2) {
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await m.addColumn(accounts, accounts.accountType);
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await m.addColumn(accounts, accounts.jmapUrl);
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}
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if (from < 3) {
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await m.addColumn(accounts, accounts.username);
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}
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if (from < 4) {
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await m.createTable(drafts);
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}
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if (from < 5) {
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await m.createTable(syncStates);
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}
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if (from < 6) {
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await m.createTable(pendingChanges);
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}
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if (from < 7) {
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await m.createTable(syncLogs);
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}
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if (from < 8) {
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await m.addColumn(mailboxes, mailboxes.role);
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}
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if (from < 9) {
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await m.addColumn(emailBodies, emailBodies.cachedAt);
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}
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if (from >= 7 && from < 10) {
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await m.addColumn(syncLogs, syncLogs.protocol);
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await m.addColumn(syncLogs, syncLogs.mailboxesSynced);
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await m.addColumn(syncLogs, syncLogs.pendingFlushed);
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}
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if (from >= 7 && from < 11) {
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await m.addColumn(syncLogs, syncLogs.emailsSkipped);
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await m.addColumn(syncLogs, syncLogs.bytesTransferred);
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}
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if (from < 12) {
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await m.createTable(syncLogMailboxes);
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}
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if (from < 13) {
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await m.addColumn(accounts, accounts.verbose);
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if (from >= 7) {
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await m.addColumn(syncLogs, syncLogs.protocolLog);
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}
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}
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if (from < 14) {
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await m.addColumn(emails, emails.threadId);
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await m.addColumn(emails, emails.messageId);
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await m.addColumn(emails, emails.inReplyTo);
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await m.addColumn(emails, emails.references);
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}
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if (from < 15) {
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await m.addColumn(accounts, accounts.manageSieveHost);
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await m.addColumn(accounts, accounts.manageSievePort);
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await m.addColumn(accounts, accounts.manageSieveSsl);
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}
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if (from < 16) {
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await m.addColumn(accounts, accounts.manageSieveAvailable);
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}
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if (from < 17) {
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await m.createTable(threads);
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// Populate threads from existing emails.
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final allRows = await select(emails).get();
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final groups = <String, List<Email>>{};
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for (final row in allRows) {
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final key =
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'${row.accountId}:${row.mailboxPath}:${row.threadId ?? row.id}';
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groups.putIfAbsent(key, () => []).add(row);
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}
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for (final threadEmails in groups.values) {
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threadEmails.sort((a, b) {
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final da = a.sentAt ?? a.receivedAt;
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final db = b.sentAt ?? b.receivedAt;
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return da.compareTo(db);
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});
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final latest = threadEmails.last;
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await into(threads).insert(
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ThreadsCompanion.insert(
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id: latest.threadId ?? latest.id,
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accountId: latest.accountId,
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mailboxPath: latest.mailboxPath,
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subject: Value(latest.subject),
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latestDate: latest.sentAt ?? latest.receivedAt,
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messageCount: Value(threadEmails.length),
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hasUnread: Value(threadEmails.any((e) => !e.isSeen)),
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isFlagged: Value(threadEmails.any((e) => e.isFlagged)),
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preview: Value(latest.preview),
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latestEmailId: latest.id,
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emailIdsJson: Value(
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jsonEncode(threadEmails.map((e) => e.id).toList()),
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),
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participantsJson: Value(
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latest.fromJson,
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), // Good enough for migration
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),
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);
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}
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}
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if (from < 18) {
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// Index for sorting email list by date.
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await m.createIndex(
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Index(
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'emails_received_at',
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'CREATE INDEX emails_received_at ON emails (account_id, mailbox_path, received_at DESC);',
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),
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);
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// Index for finding emails in a thread.
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await m.createIndex(
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Index(
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'emails_thread_id',
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'CREATE INDEX emails_thread_id ON emails (account_id, mailbox_path, thread_id);',
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),
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);
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// Index for pending changes queue.
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await m.createIndex(
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Index(
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'pending_changes_account_id',
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'CREATE INDEX pending_changes_account_id ON pending_changes (account_id);',
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),
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);
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}
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if (from < 19) {
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await m.createTable(syncHealth);
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}
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if (from < 20) {
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await m.addColumn(emailBodies, emailBodies.headersJson);
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}
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if (from < 21) {
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await m.createTable(undoActions);
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}
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if (from < 22) {
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final check = await customSelect('PRAGMA table_info(emails)').get();
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final names = check.map((row) => row.read<String>('name')).toList();
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if (!names.contains('snoozed_until')) {
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await m.addColumn(emails, emails.snoozedUntil);
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}
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if (!names.contains('snoozed_from_mailbox_path')) {
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await m.addColumn(emails, emails.snoozedFromMailboxPath);
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}
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await m.createIndex(
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Index(
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'emails_snoozed_until',
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'CREATE INDEX IF NOT EXISTS emails_snoozed_until ON emails (account_id, snoozed_until) WHERE snoozed_until IS NOT NULL;',
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),
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);
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}
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if (from < 23) {
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await m.addColumn(emails, emails.listUnsubscribeHeader);
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}
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if (from >= 4 && from < 24) {
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await m.addColumn(drafts, drafts.imapServerId);
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}
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},
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);
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}
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// Resolved once in main() via initDatabasePath() before runApp().
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String? _dbPath;
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/// Call after WidgetsFlutterBinding.ensureInitialized() so that the
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/// path_provider plugin channel is registered before the first DB access.
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Future<void> initDatabasePath() async {
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final dir = await getApplicationSupportDirectory();
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_dbPath = p.join(dir.path, 'sharedinbox.db');
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}
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LazyDatabase _openConnection() {
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return LazyDatabase(() async {
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final file = File(
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_dbPath ??
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p.join(
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(await getApplicationSupportDirectory()).path,
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'sharedinbox.db',
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),
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);
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return NativeDatabase.createInBackground(
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file,
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setup: (db) {
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// WAL lets readers and writers proceed concurrently (different account
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// sync loops share the same DB). busy_timeout makes SQLite retry for
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// up to 5 s instead of immediately returning SQLITE_BUSY.
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db.execute('PRAGMA journal_mode = WAL;');
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db.execute('PRAGMA busy_timeout = 5000;');
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},
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);
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});
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}
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