//
//  FooterView.swift
//  oAI
//
//  Footer bar with session summary
//

import SwiftUI

struct FooterView: View {
    let stats: SessionStats
    
    var body: some View {
        HStack(spacing: 20) {
            // Session summary
            HStack(spacing: 16) {
                FooterItem(
                    icon: "message",
                    label: "Messages",
                    value: "\(stats.messageCount)"
                )
                
                FooterItem(
                    icon: "chart.bar.xaxis",
                    label: "Tokens",
                    value: "\(stats.totalTokens) (\(stats.totalInputTokens) in, \(stats.totalOutputTokens) out)"
                )
                
                FooterItem(
                    icon: "dollarsign.circle",
                    label: "Cost",
                    value: stats.totalCostDisplay
                )
            }
            
            Spacer()
            
            // Shortcuts hint
            #if os(macOS)
            Text("⌘M Model • ⌘K Clear • ⌘S Stats")
                .font(.caption2)
                .foregroundColor(.oaiSecondary)
            #endif
        }
        .padding(.horizontal, 16)
        .padding(.vertical, 8)
        .background(.ultraThinMaterial)
        .overlay(
            Rectangle()
                .fill(Color.oaiBorder.opacity(0.5))
                .frame(height: 1),
            alignment: .top
        )
    }
}

struct FooterItem: View {
    let icon: String
    let label: String
    let value: String
    private let guiSize = SettingsService.shared.guiTextSize

    var body: some View {
        HStack(spacing: 6) {
            Image(systemName: icon)
                .font(.system(size: guiSize - 2))
                .foregroundColor(.oaiSecondary)

            Text(label + ":")
                .font(.system(size: guiSize - 2))
                .foregroundColor(.oaiSecondary)

            Text(value)
                .font(.system(size: guiSize - 2, weight: .medium))
                .foregroundColor(.oaiPrimary)
        }
    }
}

#Preview {
    VStack {
        Spacer()
        FooterView(stats: SessionStats(
            totalInputTokens: 1250,
            totalOutputTokens: 3420,
            totalCost: 0.0152,
            messageCount: 12
        ))
    }
    .background(Color.oaiBackground)
}