//
//  ContentView.swift
//  Reflect Watch App
//
//  Main voting interface for logging moods on Apple Watch.
//

import SwiftUI
import WatchKit

struct ContentView: View {
    @State private var showConfirmation = false
    @State private var selectedMood: Mood?
    @State private var todaysMood: Mood?

    var body: some View {
        ZStack {
            if let mood = todaysMood ?? selectedMood, showConfirmation || todaysMood != nil {
                // Show "already rated" view
                AlreadyRatedView(mood: mood)
            } else {
                // Show voting UI
                VStack(spacing: 8) {
                    Text("How do you feel?")
                        .font(.system(size: 16, weight: .medium))
                        .foregroundColor(.secondary)

                    // Top row: Great, Good, Average
                    HStack(spacing: 8) {
                        MoodButton(mood: .great, action: { logMood(.great) })
                        MoodButton(mood: .good, action: { logMood(.good) })
                        MoodButton(mood: .average, action: { logMood(.average) })
                    }

                    // Bottom row: Bad, Horrible
                    HStack(spacing: 8) {
                        MoodButton(mood: .bad, action: { logMood(.bad) })
                        MoodButton(mood: .horrible, action: { logMood(.horrible) })
                    }
                }
            }
        }
        .onAppear {
            checkTodaysEntry()
        }
    }

    private func checkTodaysEntry() {
        let entry = ExtensionDataProvider.shared.getTodayEntry()
        if let entry = entry, entry.mood != .missing && entry.mood != .placeholder {
            todaysMood = entry.mood
        }
    }

    private func logMood(_ mood: Mood) {
        selectedMood = mood

        // Haptic feedback
        WKInterfaceDevice.current().play(.success)

        let date = Date()

        // Send to iPhone for centralized logging (iOS handles all side effects)
        // Also save locally as fallback and for immediate complication updates
        Task { @MainActor in
            // Always save locally for immediate complication display
            ExtensionDataProvider.shared.add(mood: mood, forDate: date, entryType: .watch)

            // Send to iPhone - it will handle HealthKit, Live Activity, etc.
            _ = WatchConnectivityManager.shared.sendMoodToPhone(mood: mood.rawValue, date: date)
        }

        // Show confirmation and keep it (user already rated)
        withAnimation(.easeInOut(duration: 0.2)) {
            showConfirmation = true
            todaysMood = mood
        }
    }
}

// MARK: - Already Rated View

struct AlreadyRatedView: View {
    let mood: Mood

    var body: some View {
        VStack(spacing: 12) {
            Text(mood.watchEmoji)
                .font(.system(size: 50))

            Text("Logged!")
                .font(.system(size: 18, weight: .semibold))
                .foregroundColor(.secondary)
        }
    }
}

// MARK: - Mood Button

struct MoodButton: View {
    let mood: Mood
    let action: () -> Void

    var body: some View {
        Button(action: action) {
            Text(mood.watchEmoji)
                .font(.system(size: 28))
                .frame(maxWidth: .infinity)
                .frame(height: 50)
                .background(mood.watchColor.opacity(0.3))
                .cornerRadius(12)
        }
        .buttonStyle(.plain)
    }
}


// MARK: - Watch Mood Image Provider

/// Provides the appropriate emoji based on user's selected mood image style
enum WatchMoodImageStyle: Int {
    case fontAwesome = 0
    case emoji = 1
    case handEmoji = 2
    case weather = 3
    case garden = 4
    case hearts = 5
    case cosmic = 6

    static var current: WatchMoodImageStyle {
        // Use optional chaining for preview safety - App Group may not exist in canvas
        guard let defaults = UserDefaults(suiteName: Constants.currentGroupShareId) else {
            return .emoji
        }
        let rawValue = defaults.integer(forKey: "moodImages")
        return WatchMoodImageStyle(rawValue: rawValue) ?? .emoji
    }

    func emoji(for mood: Mood) -> String {
        switch self {
        case .fontAwesome:
            // FontAwesome uses face icons - map to similar emoji
            switch mood {
            case .great: return "😁"
            case .good: return "🙂"
            case .average: return "😐"
            case .bad: return "🙁"
            case .horrible: return "😫"
            case .missing, .placeholder: return "❓"
            }
        case .emoji:
            switch mood {
            case .great: return "😀"
            case .good: return "🙂"
            case .average: return "😑"
            case .bad: return "😕"
            case .horrible: return "💩"
            case .missing, .placeholder: return "❓"
            }
        case .handEmoji:
            switch mood {
            case .great: return "🙏"
            case .good: return "👍"
            case .average: return "🖖"
            case .bad: return "👎"
            case .horrible: return "🖕"
            case .missing, .placeholder: return "❓"
            }
        case .weather:
            switch mood {
            case .great: return "☀️"
            case .good: return "⛅"
            case .average: return "☁️"
            case .bad: return "🌧️"
            case .horrible: return "⛈️"
            case .missing: return "🌫️"
            case .placeholder: return "❓"
            }
        case .garden:
            switch mood {
            case .great: return "🌸"
            case .good: return "🌿"
            case .average: return "🌱"
            case .bad: return "🍂"
            case .horrible: return "🥀"
            case .missing: return "🕳️"
            case .placeholder: return "❓"
            }
        case .hearts:
            switch mood {
            case .great: return "💖"
            case .good: return "🩷"
            case .average: return "🤍"
            case .bad: return "🩶"
            case .horrible: return "💔"
            case .missing: return "🖤"
            case .placeholder: return "❓"
            }
        case .cosmic:
            switch mood {
            case .great: return "⭐"
            case .good: return "🌕"
            case .average: return "🌓"
            case .bad: return "🌑"
            case .horrible: return "🕳️"
            case .missing: return "✧"
            case .placeholder: return "❓"
            }
        }
    }
}

// MARK: - Watch-Specific Mood Extensions

extension Mood {
    /// Emoji representation for watch display based on user's selected style
    var watchEmoji: String {
        WatchMoodImageStyle.current.emoji(for: self)
    }

    /// Color for watch UI (simplified palette)
    var watchColor: Color {
        switch self {
        case .great: return .green
        case .good: return .mint
        case .average: return .yellow
        case .bad: return .orange
        case .horrible: return .red
        case .missing, .placeholder: return .gray
        }
    }
}

#Preview {
    ContentView()
}