//
//  ServerIcon.swift
//  Revolt
//
//  Created by Angelo on 31/10/2023.
//

import Foundation
import SwiftUI
import Types


struct ServerIcon<S: Shape>: View {
    @EnvironmentObject var viewState: ViewState
    
    var server: Server
    var height: CGFloat? = nil
    var width: CGFloat? = nil
    var clipTo: S
    
    var body: some View {
        if let icon = server.icon {
            LazyImage(source: .file(icon), height: height, width: height, clipTo: clipTo)
        } else {
            FallbackServerIcon(name: server.name, width: width, height: height, clipTo: clipTo)
        }
    }
}

struct FallbackServerIcon<S: Shape>: View {
    @EnvironmentObject var viewState: ViewState
    
    var name: String
    var width: CGFloat?
    var height: CGFloat?
    var clipTo: S
    
    var body: some View {
        ZStack(alignment: .center) {
            let firstChar = name.first ?? "?"
            
            clipTo
                .fill(viewState.theme.background3)
                .frame(width: width, height: height)
            
            Text(verbatim: "\(firstChar)")
                .bold()
        }
    }
}

struct ServerListIcon: View {
    @EnvironmentObject var viewState: ViewState
    
    var server: Server
    var height: CGFloat? = nil
    var width: CGFloat? = nil
    
    @Binding var currentSelection: MainSelection
    
    var body: some View {
        ServerIcon(
            server: server,
            height: height,
            width: width,
            clipTo: RoundedRectangle(cornerRadius: currentSelection == .server(server.id) ? 12 : 100)
        )
            .animation(.easeInOut, value: currentSelection == .server(server.id))
    }
}