import SwiftUI

struct FileListView: View {
    @EnvironmentObject private var coordinator: ConversionCoordinator

    var body: some View {
        List(coordinator.items) { item in
            HStack {
                VStack(alignment: .leading, spacing: 2) {
                    Text(item.fileName)
                        .lineLimit(1)
                        .truncationMode(.middle)
                    statusText(for: item.status)
                        .font(.caption)
                        .foregroundStyle(item.status.needsAttention ? Color.orange : .secondary)
                }
                Spacer()
                statusIndicator(for: item.status)
            }
            .padding(.vertical, 2)
        }
    }

    @ViewBuilder
    private func statusText(for status: DropItem.Status) -> some View {
        switch status {
        case .waiting:
            Text("Wartet …")
        case .running(let progress):
            Text("\(Int(progress * 100)) %")
        case .skipped(let reason):
            Text(reason.errorDescription ?? "Übersprungen")
        case .rejected(let reason):
            Text(reason.errorDescription ?? "Abgelehnt")
        case .succeeded(let destination):
            Text("Fertig — \(destination.lastPathComponent)")
        case .failed(let message):
            Text(message)
        case .skippedByUser(let reason):
            Text(reason)
        }
    }

    @ViewBuilder
    private func statusIndicator(for status: DropItem.Status) -> some View {
        switch status {
        case .waiting:
            Image(systemName: "clock")
                .foregroundStyle(.secondary)
        case .running(let progress):
            ProgressView(value: progress)
                .frame(width: 60)
        case .skipped, .skippedByUser:
            Image(systemName: "arrow.uturn.forward.circle")
                .foregroundStyle(.secondary)
        case .rejected, .failed:
            Image(systemName: "exclamationmark.triangle.fill")
                .foregroundStyle(.orange)
        case .succeeded:
            Image(systemName: "checkmark.circle.fill")
                .foregroundStyle(.green)
        }
    }
}