Restructure model

Model/Accounts/Account.swift

@@ -0,0 +1,79 @@
+import Defaults
+import Foundation
+
+struct Account: Defaults.Serializable, Hashable, Identifiable {
+    struct AccountsBridge: Defaults.Bridge {
+        typealias Value = Account
+        typealias Serializable = [String: String]
+
+        func serialize(_ value: Value?) -> Serializable? {
+            guard let value = value else {
+                return nil
+            }
+
+            return [
+                "id": value.id,
+                "instanceID": value.instanceID,
+                "name": value.name ?? "",
+                "url": value.url,
+                "sid": value.sid
+            ]
+        }
+
+        func deserialize(_ object: Serializable?) -> Value? {
+            guard
+                let object = object,
+                let id = object["id"],
+                let instanceID = object["instanceID"],
+                let url = object["url"],
+                let sid = object["sid"]
+            else {
+                return nil
+            }
+
+            let name = object["name"] ?? ""
+
+            return Account(id: id, instanceID: instanceID, name: name, url: url, sid: sid)
+        }
+    }
+
+    static var bridge = AccountsBridge()
+
+    let id: String
+    let instanceID: String
+    var name: String?
+    let url: String
+    let sid: String
+    let anonymous: Bool
+
+    init(id: String? = nil, instanceID: String? = nil, name: String? = nil, url: String? = nil, sid: String? = nil, anonymous: Bool = false) {
+        self.anonymous = anonymous
+
+        self.id = id ?? (anonymous ? "anonymous-\(instanceID!)" : UUID().uuidString)
+        self.instanceID = instanceID ?? UUID().uuidString
+        self.name = name
+        self.url = url ?? ""
+        self.sid = sid ?? ""
+    }
+
+    var instance: Instance {
+        Defaults[.instances].first { $0.id == instanceID }!
+    }
+
+    var anonymizedSID: String {
+        guard sid.count > 3 else {
+            return ""
+        }
+
+        let index = sid.index(sid.startIndex, offsetBy: 4)
+        return String(sid[..<index])
+    }
+
+    var description: String {
+        (name != nil && name!.isEmpty) ? "Unnamed (\(anonymizedSID))" : name!
+    }
+
+    func hash(into hasher: inout Hasher) {
+        hasher.combine(sid)
+    }
+}