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Suggested Users to Follow

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ui: Add Suggested Users Views and Helpers
ui: Add Logic to Launch Suggested User Screen

Changelog-Added: Suggested Users to Follow
This commit is contained in:
Joel Klabo
2023-07-20 12:45:10 -07:00
committed by William Casarin
parent f0de8721c7
commit 480921db20
8 changed files with 487 additions and 1 deletions
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72
damus/Views/Onboarding/SuggestedUserView.swift Normal file
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//
// SuggestedUserView.swift
// damus
//
// Created by klabo on 7/18/23.
//
import SwiftUI
struct SuggestedUser: Codable {
let pubkey: String
let name: String
let about: String
let pfp: URL
let profile: Profile
init?(profile: Profile, pubkey: String) {
guard let name = profile.name,
let about = profile.about,
let picture = profile.picture,
let pfpURL = URL(string: picture) else {
return nil
}
self.pubkey = pubkey
self.name = name
self.about = about
self.pfp = pfpURL
self.profile = profile
}
}
struct SuggestedUserView: View {
let user: SuggestedUser
let damus_state: DamusState
var body: some View {
HStack {
let target = FollowTarget.pubkey(user.pubkey)
InnerProfilePicView(url: user.pfp,
fallbackUrl: nil,
pubkey: target.pubkey,
size: 50,
highlight: .none,
disable_animation: false)
VStack(alignment: .leading, spacing: 4) {
HStack {
ProfileName(pubkey: user.pubkey, profile: user.profile, damus: damus_state)
}
Text(user.about)
.lineLimit(3)
.foregroundColor(.gray)
.font(.caption)
}
Spacer()
GradientFollowButton(target: target, follows_you: false, follow_state: damus_state.contacts.follow_state(target.pubkey))
}
}
}
struct SuggestedUserView_Previews: PreviewProvider {
static var previews: some View {
let profile = Profile(name: "klabo", about: "A person who likes nostr a lot and I like to tell people about myself in very long-winded ways that push the limits of UI and almost break things", picture: "https://primal.b-cdn.net/media-cache?s=m&a=1&u=https%3A%2F%2Fpbs.twimg.com%2Fprofile_images%2F1599994711430742017%2F33zLk9Wi_400x400.jpg")
let user = SuggestedUser(profile: profile, pubkey: "abcd")!
List {
SuggestedUserView(user: user, damus_state: test_damus_state())
}
}
}

77
damus/Views/Onboarding/SuggestedUsersView.swift Normal file
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//
// SuggestedUsersView.swift
// damus
//
// Created by klabo on 7/17/23.
//
import SwiftUI
struct SuggestedUsersView: View {
@StateObject var model: SuggestedUsersViewModel
@Environment(\.presentationMode) private var presentationMode
var body: some View {
NavigationView {
VStack {
List {
ForEach(model.groups) { group in
Section {
ForEach(group.users, id: \.self) { pk in
if let user = model.suggestedUser(pubkey: pk) {
SuggestedUserView(user: user, damus_state: model.damus_state)
}
}
} header: {
SuggestedUsersSectionHeader(group: group, model: model)
}
}
}
.listStyle(.plain)
Spacer()
Button(action: {
presentationMode.wrappedValue.dismiss()
}) {
Text(NSLocalizedString("Continue", comment: "Button to dismiss suggested users view and continue to the main app"))
.frame(minWidth: 300, maxWidth: .infinity, alignment: .center)
}
.buttonStyle(GradientButtonStyle())
.padding([.leading, .trailing], 24)
.padding(.bottom, 16)
}
.navigationTitle(NSLocalizedString("Who to Follow", comment: "Title for a screen displaying suggestions of who to follow"))
.navigationBarTitleDisplayMode(.inline)
.navigationBarItems(trailing: Button(action: {
presentationMode.wrappedValue.dismiss()
}, label: {
Text(NSLocalizedString("Skip", comment: "Button to dismiss the suggested users screen"))
.font(.subheadline.weight(.semibold))
}))
}
}
}
struct SuggestedUsersSectionHeader: View {
let group: SuggestedUserGroup
let model: SuggestedUsersViewModel
var body: some View {
HStack {
Text(group.title.uppercased())
Spacer()
Button(NSLocalizedString("Follow All", comment: "Button to follow all users in this section")) {
model.follow(pubkeys: group.users)
}
.font(.subheadline.weight(.semibold))
}
}
}
struct SuggestedUsersView_Previews: PreviewProvider {
static var previews: some View {
SuggestedUsersView(model: SuggestedUsersViewModel(damus_state: test_damus_state()))
}
}

108
damus/Views/Onboarding/SuggestedUsersViewModel.swift Normal file
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//
// SuggestedUsersViewModel.swift
// damus
//
// Created by klabo on 7/17/23.
//
import Foundation
import Combine
struct SuggestedUserGroup: Identifiable, Codable {
let id = UUID()
let title: String
let users: [String]
enum CodingKeys: String, CodingKey {
case title, users
}
}
class SuggestedUsersViewModel: ObservableObject {
public let damus_state: DamusState
@Published var groups: [SuggestedUserGroup] = []
private let sub_id = UUID().uuidString
init(damus_state: DamusState) {
self.damus_state = damus_state
loadSuggestedUserGroups()
let pubkeys = getPubkeys(groups: groups)
subscribeToSuggestedProfiles(pubkeys: pubkeys)
}
func suggestedUser(pubkey: String) -> SuggestedUser? {
if let profile = damus_state.profiles.lookup(id: pubkey),
let user = SuggestedUser(profile: profile, pubkey: pubkey) {
return user
}
return nil
}
func follow(pubkeys: [String]) {
for pubkey in pubkeys {
notify(.follow, FollowTarget.pubkey(pubkey))
}
}
private func loadSuggestedUserGroups() {
guard let url = Bundle.main.url(forResource: "suggested_users", withExtension: "json") else {
return
}
guard let data = try? Data(contentsOf: url) else {
return
}
let decoder = JSONDecoder()
do {
let groups = try decoder.decode([SuggestedUserGroup].self, from: data)
self.groups = groups
} catch {
print(error.localizedDescription.localizedLowercase)
}
}
private func getPubkeys(groups: [SuggestedUserGroup]) -> [String] {
var pubkeys: [String] = []
for group in groups {
pubkeys.append(contentsOf: group.users)
}
return pubkeys
}
private func subscribeToSuggestedProfiles(pubkeys: [String]) {
let filter = NostrFilter(kinds: [.metadata],
authors: pubkeys)
damus_state.pool.subscribe(sub_id: sub_id, filters: [filter], handler: handle_event)
}
func handle_event(relay_id: String, ev: NostrConnectionEvent) {
guard case .nostr_event(let nev) = ev else {
return
}
switch nev {
case .event(let sub_id, let ev):
guard sub_id == self.sub_id else {
return
}
if ev.known_kind == .metadata {
process_metadata_event(events: damus_state.events, our_pubkey: damus_state.pubkey, profiles: damus_state.profiles, ev: ev)
}
case .notice(let msg):
print("suggested user profiles notice: \(msg)")
case .eose:
self.objectWillChange.send()
case .ok:
break
}
}
}

80
damus/Views/Onboarding/suggested_users.json Normal file
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[
{
"title": "nostr",
"users": [
"ba2f394833658475e91680b898f9be0f1d850166c6a839dbe084d0266ad6e20a",
"82341f882b6eabcd2ba7f1ef90aad961cf074af15b9ef44a09f9d2a8fbfbe6a2",
"fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
"b708f7392f588406212c3882e7b3bc0d9b08d62f95fa170d099127ece2770e5e"
]
},
{
"title": "permaculture & livestock & gardening",
"users": [
"4b1804c90d59dff195ee0e8f692b98a7c762bf1793b3e126c546d730dcb04477",
"2c24e1af571fb4ccfeca3981649c1b09c695cd83b129709eb3b41c7ad2854899",
"296842eaaed9be5ae0668da09fe48aac0521c4af859ad547d93145e5ac34c17e",
"2c24e1af571fb4ccfeca3981649c1b09c695cd83b129709eb3b41c7ad2854899"
]
},
{
"title": "music",
"users": [
"23708a76e7090cb108d33e8801fd36262c475e5499b23eb87eee4a31f4f0144e",
"ca9d68eb25620fc755e1b8c76b5f155f4c7e96d99c532c109a8b36d208bdce55"
]
},
{
"title": "books",
"users": [
"2652f3af10de63bc10a2628871a3fce62e08655e4fcf90a58be16f246bb65da3",
"b83a28b7e4e5d20bd960c5faeb6625f95529166b8bdb045d42634a2f35919450"
]
},
{
"title": "art & photography",
"users": [
"f96c3d76497074c4c83a7b3823380e77dc73d5a9494fd2e053e4a1453e17824b",
"11b2d93b26d7e56fb57f0afce0d33bfa7fb35b913e4c0aeb7706464befb9ca97",
"f4db5270bd991b17bea1e6d035f45dee392919c29474bbac10342d223c74e0d0",
"af146f51634a5fb0abc592fbc2bed42cf740700990344a766a8999fe55eed1c6",
"8816e8938fe60a3a925433c77410f39500fe1320787acb2165f9345e70464592",
"8d0638d3e8d9b23e337fb4017bb7d5a97def40bdc258e8121ee7d51e623ca065",
"ece8ed2111f73b92251e74a3da22dee1d6c6d9b497040acc68a37ac6bbf5a105",
"64bfa9abffe5b18d0731eed57b38173adc2ba89bf87c168da90517f021e722b5",
"546bffcb9317edf919828de272dd8eba11f2aadc07969cba6c9bb894c07712ef",
"20998a8d433181cc5e778903db528d162f5579918a3437be40fdba0130b3469c",
"37c962bfb34d32e667d5075f7d55f3a7ca9bcddbafeff59a4003c276ad147352",
"387fa328198e67a400caf00947cc91e0c166d24d71d8b4b78a6c3ef91ff4d058",
"87deef9034c52d87ae327af3a76358e58e7ee2e03d80c738ee1a2be399c23e79"
]
},
{
"title": "ai art",
"users": [
"431fa2f340f0adf8963d6d7c6e2c20d913278c691fe609fd3857db13d8f39feb",
"9936a53def39d712f886ac7e2ed509ce223b534834dd29d95caba9f6bc01ef35",
"1577e4599dd10c863498fe3c20bd82aafaf829a595ce83c5cf8ac3463531b09b",
"693c2832de939b4af8ccd842b17f05df2edd551e59989d3c4ef9a44957b2f1fb",
"55f04590674f3648f4cdc9dc8ce32da2a282074cd0b020596ee033d12d385185"
]
},
{
"title": "parenting",
"users": [
"c7c8f645fd45b09055fb6c26d148737ad7ed12ddecde0d4c877b88f8d4196865",
"fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
"e451c4e82e272ef912a04f490373fce9054a044b11a2aa847823b3686c8eba77",
"261c7e18545aee4eb55e8052297fd93bd886c2f96b10d599cfdad4f3477b87ab",
"22a193fb86c793d7f73348126a5fe55ab8a4c975805ebc2ff81bf290f7805f7e"
]
},
{
"title": "food",
"users": [
"cbb2f023b6aa09626d51d2f4ea99fa9138ea80ec7d5ffdce9feef8dcd6352031"
]
}
]