//
//  ShareButton.swift
//  SportsTime
//
//  Contextual share button component.
//

import SwiftUI

struct ShareButton<Content: ShareableContent>: View {
    let content: Content
    var style: ShareButtonStyle = .icon

    @State private var showPreview = false

    var body: some View {
        Button {
            showPreview = true
            if let tripContent = content as? TripShareContent {
                AnalyticsManager.shared.track(.tripShared(tripId: tripContent.trip.id.uuidString))
            } else if content is ProgressShareContent {
                AnalyticsManager.shared.track(.progressCardShared(sport: "unknown"))
            }
        } label: {
            switch style {
            case .icon:
                Image(systemName: "square.and.arrow.up")
                    .accessibilityLabel("Share")
            case .labeled:
                Label("Share", systemImage: "square.and.arrow.up")
            case .pill:
                HStack(spacing: 4) {
                    Image(systemName: "square.and.arrow.up")
                    Text("Share")
                }
                .font(.subheadline.weight(.medium))
                .padding(.horizontal, 12)
                .padding(.vertical, 6)
                .background(Theme.warmOrange)
                .foregroundStyle(.white)
                .clipShape(Capsule())
            }
        }
        .sheet(isPresented: $showPreview) {
            SharePreviewView(content: content)
        }
    }
}

enum ShareButtonStyle {
    case icon
    case labeled
    case pill
}

// MARK: - Convenience Initializers

extension ShareButton where Content == TripShareContent {
    init(trip: Trip, style: ShareButtonStyle = .icon) {
        self.content = TripShareContent(trip: trip)
        self.style = style
    }
}

extension ShareButton where Content == ProgressShareContent {
    init(progress: LeagueProgress, tripCount: Int = 0, style: ShareButtonStyle = .icon) {
        self.content = ProgressShareContent(progress: progress, tripCount: tripCount)
        self.style = style
    }
}

extension ShareButton where Content == AchievementSpotlightContent {
    init(achievement: AchievementProgress, style: ShareButtonStyle = .icon) {
        self.content = AchievementSpotlightContent(achievement: achievement)
        self.style = style
    }
}