//
//  ReplyDescription.swift
//  damus
//
//  Created by William Casarin on 2023-01-23.
//

import SwiftUI

// jb55 - TODO: this could be a lot better
struct ReplyDescription: View {
    let event: NostrEvent
    let profiles: Profiles
    
    var body: some View {
        Text(String("\(reply_desc(profiles: profiles, event: event))"))
            .font(.footnote)
            .foregroundColor(.gray)
            .frame(maxWidth: .infinity, alignment: .leading)
    }
}

struct ReplyDescription_Previews: PreviewProvider {
    static var previews: some View {
        ReplyDescription(event: test_event, profiles: test_damus_state().profiles)
    }
}

func reply_desc(profiles: Profiles, event: NostrEvent) -> String {
    let desc = make_reply_description(event.tags)
    let pubkeys = desc.pubkeys
    let n = desc.others

    if desc.pubkeys.count == 0 {
        return NSLocalizedString("Reply to self", comment: "Label to indicate that the user is replying to themself.")
    }

    let names: [String] = pubkeys.map {
        let prof = profiles.lookup(id: $0)
        return Profile.displayName(profile: prof, pubkey: $0)
    }

    if names.count == 2 {
        if n > 2 {
            let othersCount = n - pubkeys.count
            return String(format: NSLocalizedString("replying_to_two_and_others", comment: "Label to indicate that the user is replying to 2 users and others."), names[0], names[1], othersCount)
        }
        return String(format: NSLocalizedString("Replying to %@ & %@", comment: "Label to indicate that the user is replying to 2 users."), names[0], names[1])
    }

    let othersCount = n - pubkeys.count
    return String(format: NSLocalizedString("replying_to_one_and_others", comment: "Label to indicate that the user is replying to 1 user and others."), names[0], othersCount)
}