//
//  LiveRoomDonationRankingItemView.swift
//  SodaLive
//
//  Created by klaus on 2023/08/15.
//

import SwiftUI
import Kingfisher

struct LiveRoomDonationRankingItemView: View {
    
    let index: Int
    let item: GetLiveRoomDonationItem
    let itemCount: Int
    
    let rankingCrawns = ["ic_crown_1", "ic_crown_2", "ic_crown_3"]
    let rankingColors = [
        [Color(hex: "ffdc00"), Color(hex: "ffb600")],
        [Color(hex: "ffffff"), Color(hex: "9f9f9f")],
        [Color(hex: "e6a77a"), Color(hex: "c67e4a")],
        [Color(hex: "ffffff").opacity(0), Color(hex: "ffffff").opacity(0)]
    ]
    
    var body: some View {
        HStack(spacing: 0) {
            ZStack {
                KFImage(URL(string: item.profileImage))
                    .cancelOnDisappear(true)
                    .downsampling(size: CGSize(width: 60, height: 60))
                    .resizable()
                    .scaledToFill()
                    .frame(width: 60, height: 60, alignment: .top)
                    .clipShape(Circle())
                    .overlay(
                        Circle()
                            .stroke(
                                AngularGradient(colors: rankingColors[index < 4 ? index : 3], center: .center),
                                lineWidth: 3
                            )
                    )
                
                if index < 3 {
                    VStack(alignment: .trailing, spacing: 0) {
                        Spacer()
                        
                        Image(rankingCrawns[index])
                            .resizable()
                            .frame(width: 25, height: 25)
                    }
                    .frame(width: 63, height: 63, alignment: .trailing)
                }
            }
            .frame(width: 63, height: 63)
            
            Text("\(index + 1)")
                .font(.custom(Font.bold.rawValue, size: 13.3))
                .foregroundColor(Color(hex: "eeeeee"))
                .padding(.leading, 20)
                .padding(.trailing, 13.3)
            
            let nickname = item.nickname.count > 10 ? "\(String(item.nickname.prefix(10)))..." : item.nickname
            Text(nickname)
                .font(.custom(Font.medium.rawValue, size: 13.3))
                .foregroundColor(Color(hex: "eeeeee"))
            
            Spacer()
            
            if item.can > 0 {
                Text("\(item.can) 코인")
                    .font(.custom(Font.medium.rawValue, size: 13.3))
                    .foregroundColor(Color(hex: "eeeeee"))
            }
        }
        .padding(.horizontal, isTop3Index(index: index) ? 20 : 0)
        .padding(.top, getTopPadding(index: index))
        .padding(.bottom, getBottomPadding(index: index))
        .background(Color(hex: "2b2635").opacity(isTop3Index(index: index) ? 1 : 0))
        .cornerRadius(4.7, corners: cornerRadiusConers(index: index))
        .padding(.horizontal, isTop3Index(index: index) ? 0 : 6.7)
    }
    
    private func isTop3Index(index: Int) -> Bool {
        return index == 0 || index == 1 || index == 2
    }
    
    private func getTopPadding(index: Int) -> CGFloat {
        if index == 0 || index == 3 {
            return 20
        } else {
            return 6.7
        }
    }
    
    private func getBottomPadding(index: Int) -> CGFloat {
        if (index == 0 && itemCount == 1) || (index == 1 && itemCount == 2) || index == 2 {
            return 20
        } else {
            return 6.7
        }
    }
    
    private func cornerRadiusConers(index: Int) -> UIRectCorner {
        if (index == 0 && itemCount == 1) {
            return [.topLeft, .topRight, .bottomLeft, .bottomRight]
        } else if index == 0 {
            return [.topLeft, .topRight]
        } else if (index == 1 && itemCount == 2) || index == 2 {
            return [.bottomLeft, .bottomRight]
        } else {
            return []
        }
    }
}