profile: don't overwrite profile info

This will be important for profile editing

damus/Nostr/Nostr.swift

@@ -7,7 +7,75 @@
 
 import Foundation
 
+struct Profile: Codable {
+    var value: [String: String]
+    
+    init (name: String?, display_name: String?, about: String?, picture: String?, website: String?, lud06: String?, lud16: String?) {
+        self.value = [:]
+        self.name = name
+        self.display_name = display_name
+        self.about = about
+        self.picture = picture
+        self.website = website
+        self.lud06 = lud06
+        self.lud16 = lud16
+    }
+    
+    var display_name: String? {
+        get { return value["display_name"]; }
+        set(s) { value["display_name"] = s }
+    }
+    
+    var name: String? {
+        get { return value["name"]; }
+        set(s) { value["name"] = s }
+    }
+    
+    var about: String? {
+        get { return value["about"]; }
+        set(s) { value["about"] = s }
+    }
+    
+    var picture: String? {
+        get { return value["picture"]; }
+        set(s) { value["picture"] = s }
+    }
+    
+    var website: String? {
+        get { return value["website"]; }
+        set(s) { value["website"] = s }
+    }
+    
+    var lud06: String? {
+        get { return value["lud06"]; }
+        set(s) { value["lud06"] = s }
+    }
+    
+    var lud16: String? {
+        get { return value["lud16"]; }
+        set(s) { value["lud16"] = s }
+    }
+    
+    var lightning_uri: URL? {
+        return make_ln_url(self.lud06) ?? make_ln_url(self.lud16)
+    }
+    
+    init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        self.value = try container.decode([String: String].self)
+    }
+    
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        try container.encode(value)
+    }
+    
+    static func displayName(profile: Profile?, pubkey: String) -> String {
+        return profile?.name ?? abbrev_pubkey(pubkey)
+    }
+}
 
+/*
 struct Profile: Decodable {
     let name: String?
     let display_name: String?
@@ -25,6 +93,7 @@ struct Profile: Decodable {
         return profile?.name ?? abbrev_pubkey(pubkey)
     }
 }
+ */
 
 func make_ln_url(_ str: String?) -> URL? {
     return str.flatMap { URL(string: "lightning:" + $0) }