[appstore] Report Content

This view provides a way to report content (nudity, illegal, spam) to
relays. Clients can use this information to filter or warn if they
choose to.

This is needed for the appstore release

Changelog-Added: Added a way to report content

damus/Views/ReportView.swift

@@ -0,0 +1,115 @@
+//
+//  ReportView.swift
+//  damus
+//
+//  Created by William Casarin on 2023-01-25.
+//
+
+import SwiftUI
+
+struct ReportView: View {
+    let pool: RelayPool
+    let target: ReportTarget
+    let privkey: String
+     
+    @State var report_sent: Bool = false
+    @State var report_id: String = ""
+    
+    var body: some View {
+        if report_sent {
+            Success
+        } else {
+            MainForm
+        }
+    }
+    
+    var Success: some View {
+        VStack(alignment: .center, spacing: 20) {
+            Text("Report sent!")
+                .font(.headline)
+            
+            Text("Relays have been notified and clients will be able to use this information to filter content. Thank you!")
+            
+            Text("Report ID:")
+            
+            Text(report_id)
+            
+            Button("Copy Report ID") {
+                UIPasteboard.general.string = report_id
+                let g = UIImpactFeedbackGenerator(style: .medium)
+                g.impactOccurred()
+            }
+        }
+        .padding()
+    }
+    
+    func do_send_report(type: ReportType) {
+        guard let ev = send_report(privkey: privkey, pool: pool, target: target, type: .spam) else {
+            return
+        }
+        
+        guard let note_id = bech32_note_id(ev.id) else {
+            return
+        }
+        
+        report_sent = true
+        report_id = note_id
+    }
+    
+    var MainForm: some View {
+        VStack {
+            
+        Text("Report")
+                .font(.headline)
+                .padding()
+            
+        Form {
+            Section(content: {
+                Button("It's spam") {
+                    do_send_report(type: .spam)
+                }
+                
+                Button("Nudity or explicit content") {
+                    do_send_report(type: .explicit)
+                }
+                
+                Button("Illegal content") {
+                    do_send_report(type: .illegal)
+                }
+                
+                if case .user = target {
+                    Button("They are impersonating someone") {
+                        do_send_report(type: .impersonation)
+                    }
+                }
+            }, header: {
+                Text("What do you want to report?")
+            }, footer: {
+                Text("Your report will be sent to the relays you are connected to")
+            })
+        }
+        }
+    }
+}
+
+func send_report(privkey: String, pool: RelayPool, target: ReportTarget, type: ReportType) -> NostrEvent? {
+    let report = Report(type: type, target: target, message: "")
+    guard let ev = create_report_event(privkey: privkey, report: report) else {
+        return nil
+    }
+    pool.send(.event(ev))
+    return ev
+}
+
+struct ReportView_Previews: PreviewProvider {
+    static var previews: some View {
+        let ds = test_damus_state()
+        VStack {
+        
+        ReportView(pool: ds.pool, target: ReportTarget.user(""), privkey: "")
+        
+            ReportView(pool: ds.pool, target: ReportTarget.user(""), privkey: "", report_sent: true, report_id: "report_id")
+            
+        }
+    }
+}