add models module: shared types for accounts, messages, threads, sync

fix Package.swift: remove NIOIMAPCore product reference (only NIOIMAP is exported by swift-nio-imap)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Packages/MagnumOpusCore/Package.swift

@@ -32,7 +32,6 @@ let package = Package(
 			name: "IMAPClient",
 			dependencies: [
 				"Models",
-				.product(name: "NIOIMAPCore", package: "swift-nio-imap"),
 				.product(name: "NIOIMAP", package: "swift-nio-imap"),
 				.product(name: "NIOSSL", package: "swift-nio-ssl"),
 			]
@@ -47,7 +46,6 @@ let package = Package(
 			name: "IMAPClientTests",
 			dependencies: [
 				"IMAPClient",
-				.product(name: "NIOIMAPCore", package: "swift-nio-imap"),
 			]
 		),
 		.testTarget(name: "SyncEngineTests", dependencies: ["SyncEngine", "IMAPClient", "MailStore"]),

Packages/MagnumOpusCore/Sources/Models/AccountConfig.swift

@@ -0,0 +1,15 @@
+public struct AccountConfig: Sendable, Codable, Equatable {
+	public var id: String
+	public var name: String
+	public var email: String
+	public var imapHost: String
+	public var imapPort: Int
+
+	public init(id: String, name: String, email: String, imapHost: String, imapPort: Int) {
+		self.id = id
+		self.name = name
+		self.email = email
+		self.imapHost = imapHost
+		self.imapPort = imapPort
+	}
+}

Packages/MagnumOpusCore/Sources/Models/Credentials.swift

@@ -0,0 +1,9 @@
+public struct Credentials: Sendable {
+	public var username: String
+	public var password: String
+
+	public init(username: String, password: String) {
+		self.username = username
+		self.password = password
+	}
+}

Packages/MagnumOpusCore/Sources/Models/EmailAddress.swift

@@ -0,0 +1,32 @@
+import Foundation
+
+public struct EmailAddress: Sendable, Codable, Equatable, Hashable {
+	public var name: String?
+	public var address: String
+
+	public init(name: String? = nil, address: String) {
+		self.name = name
+		self.address = address
+	}
+
+	public var displayName: String {
+		name ?? address
+	}
+
+	/// Parses "Alice <alice@example.com>" or bare "alice@example.com"
+	public static func parse(_ raw: String) -> EmailAddress {
+		let trimmed = raw.trimmingCharacters(in: .whitespaces)
+		guard let openAngle = trimmed.lastIndex(of: "<"),
+			  let closeAngle = trimmed.lastIndex(of: ">"),
+			  openAngle < closeAngle
+		else {
+			return EmailAddress(address: trimmed)
+		}
+		let addr = String(trimmed[trimmed.index(after: openAngle)..<closeAngle])
+		let namepart = String(trimmed[..<openAngle]).trimmingCharacters(in: .whitespaces)
+		return EmailAddress(
+			name: namepart.isEmpty ? nil : namepart.trimmingCharacters(in: CharacterSet(charactersIn: "\"")),
+			address: addr
+		)
+	}
+}

Packages/MagnumOpusCore/Sources/Models/MailboxInfo.swift

@@ -0,0 +1,27 @@
+public struct MailboxInfo: Sendable, Identifiable, Equatable {
+	public var id: String
+	public var accountId: String
+	public var name: String
+	public var unreadCount: Int
+	public var totalCount: Int
+
+	public init(id: String, accountId: String, name: String, unreadCount: Int, totalCount: Int) {
+		self.id = id
+		self.accountId = accountId
+		self.name = name
+		self.unreadCount = unreadCount
+		self.totalCount = totalCount
+	}
+
+	public var systemImage: String {
+		switch name.lowercased() {
+		case "inbox": "tray"
+		case "sent", "sent messages": "paperplane"
+		case "drafts": "doc"
+		case "trash", "deleted messages": "trash"
+		case "archive", "all mail": "archivebox"
+		case "junk", "spam": "xmark.bin"
+		default: "folder"
+		}
+	}
+}

Packages/MagnumOpusCore/Sources/Models/MessageSummary.swift

@@ -0,0 +1,41 @@
+import Foundation
+
+public struct MessageSummary: Sendable, Identifiable, Equatable {
+	public var id: String
+	public var messageId: String?
+	public var threadId: String?
+	public var from: EmailAddress?
+	public var to: [EmailAddress]
+	public var cc: [EmailAddress]
+	public var subject: String?
+	public var date: Date
+	public var snippet: String?
+	public var bodyText: String?
+	public var bodyHtml: String?
+	public var isRead: Bool
+	public var isFlagged: Bool
+	public var hasAttachments: Bool
+
+	public init(
+		id: String, messageId: String?, threadId: String?,
+		from: EmailAddress?, to: [EmailAddress], cc: [EmailAddress],
+		subject: String?, date: Date, snippet: String?,
+		bodyText: String?, bodyHtml: String?,
+		isRead: Bool, isFlagged: Bool, hasAttachments: Bool
+	) {
+		self.id = id
+		self.messageId = messageId
+		self.threadId = threadId
+		self.from = from
+		self.to = to
+		self.cc = cc
+		self.subject = subject
+		self.date = date
+		self.snippet = snippet
+		self.bodyText = bodyText
+		self.bodyHtml = bodyHtml
+		self.isRead = isRead
+		self.isFlagged = isFlagged
+		self.hasAttachments = hasAttachments
+	}
+}

Packages/MagnumOpusCore/Sources/Models/Placeholder.swift

@@ -1 +0,0 @@
-enum ModelsPlaceholder {}

Packages/MagnumOpusCore/Sources/Models/SyncEvent.swift

@@ -0,0 +1,9 @@
+/// Note: spec defines syncFailed(Error), but Error is not Sendable.
+/// Using String instead for Swift 6 strict concurrency compliance.
+public enum SyncEvent: Sendable {
+	case syncStarted
+	case newMessages(count: Int, mailbox: String)
+	case flagsChanged(messageIds: [String])
+	case syncCompleted
+	case syncFailed(String)
+}

Packages/MagnumOpusCore/Sources/Models/SyncState.swift

@@ -0,0 +1,5 @@
+public enum SyncState: Sendable, Equatable {
+	case idle
+	case syncing(mailbox: String?)
+	case error(String)
+}

Packages/MagnumOpusCore/Sources/Models/ThreadSummary.swift

@@ -0,0 +1,26 @@
+import Foundation
+
+public struct ThreadSummary: Sendable, Identifiable, Equatable {
+	public var id: String
+	public var accountId: String
+	public var subject: String?
+	public var lastDate: Date
+	public var messageCount: Int
+	public var unreadCount: Int
+	public var senders: String
+	public var snippet: String?
+
+	public init(
+		id: String, accountId: String, subject: String?, lastDate: Date,
+		messageCount: Int, unreadCount: Int, senders: String, snippet: String?
+	) {
+		self.id = id
+		self.accountId = accountId
+		self.subject = subject
+		self.lastDate = lastDate
+		self.messageCount = messageCount
+		self.unreadCount = unreadCount
+		self.senders = senders
+		self.snippet = snippet
+	}
+}

Packages/MagnumOpusCore/Tests/ModelsTests/EmailAddressTests.swift

@@ -0,0 +1,34 @@
+import Testing
+@testable import Models
+
+@Suite("EmailAddress")
+struct EmailAddressTests {
+	@Test("parses name and address from angle-bracket format")
+	func parsesNameAndAddress() {
+		let addr = EmailAddress.parse("Alice <alice@example.com>")
+		#expect(addr.name == "Alice")
+		#expect(addr.address == "alice@example.com")
+		#expect(addr.displayName == "Alice")
+	}
+
+	@Test("parses bare email address")
+	func parsesBareAddress() {
+		let addr = EmailAddress.parse("bob@example.com")
+		#expect(addr.name == nil)
+		#expect(addr.address == "bob@example.com")
+		#expect(addr.displayName == "bob@example.com")
+	}
+
+	@Test("parses quoted name with angle brackets")
+	func parsesQuotedName() {
+		let addr = EmailAddress.parse("\"Bob Smith\" <bob@example.com>")
+		#expect(addr.name == "Bob Smith")
+		#expect(addr.address == "bob@example.com")
+	}
+
+	@Test("handles empty string gracefully")
+	func handlesEmpty() {
+		let addr = EmailAddress.parse("")
+		#expect(addr.address == "")
+	}
+}

Packages/MagnumOpusCore/Tests/ModelsTests/Placeholder.swift

@@ -1 +0,0 @@
-import Testing