// ── Urgency System ─────────────────────────────────────────────
// 5 levels mapping to notification style, sound, vibration, visual intensity, snooze behavior
// Ported from web/src/lib/urgency.ts

import SwiftUI

// MARK: - Urgency Level

enum UrgencyLevel: String, Codable, CaseIterable, Identifiable {
    case critical
    case important
    case standard
    case gentle
    case passive

    var id: String { rawValue }
}

// MARK: - Notification Style

enum NotificationStyle: String, Codable {
    case persistent   // Critical: won't auto-dismiss
    case prominent    // Important: sound + banner
    case `default`    // Standard: normal notification
    case subtle       // Gentle: silent banner
    case badge        // Passive: badge only
}

// MARK: - Urgency Configuration

struct UrgencyConfig {
    let level: UrgencyLevel
    let label: String
    let color: Color
    let colorHex: String
    let notificationStyle: NotificationStyle
    let soundEnabled: Bool
    let vibrationPattern: [Int] // ms on/off pattern
    let visualIntensity: Double // 0-1
    let autoSnoozeMinutes: Int? // nil = no auto-snooze
    let requireConfirmToDismiss: Bool
    let fullScreenOverlay: Bool
}

// MARK: - Urgency Configs

let urgencyConfigs: [UrgencyLevel: UrgencyConfig] = [
    .critical: UrgencyConfig(
        level: .critical,
        label: "Critical",
        color: Color(hex: 0xFF4757),
        colorHex: "#FF4757",
        notificationStyle: .persistent,
        soundEnabled: true,
        vibrationPattern: [200, 100, 200, 100, 400],
        visualIntensity: 1.0,
        autoSnoozeMinutes: nil,
        requireConfirmToDismiss: true,
        fullScreenOverlay: true
    ),
    .important: UrgencyConfig(
        level: .important,
        label: "Important",
        color: Color(hex: 0xFF9F43),
        colorHex: "#FF9F43",
        notificationStyle: .prominent,
        soundEnabled: true,
        vibrationPattern: [200, 100, 200],
        visualIntensity: 0.8,
        autoSnoozeMinutes: 10,
        requireConfirmToDismiss: false,
        fullScreenOverlay: false
    ),
    .standard: UrgencyConfig(
        level: .standard,
        label: "Standard",
        color: Color(hex: 0xFECA57),
        colorHex: "#FECA57",
        notificationStyle: .default,
        soundEnabled: true,
        vibrationPattern: [200],
        visualIntensity: 0.6,
        autoSnoozeMinutes: 5,
        requireConfirmToDismiss: false,
        fullScreenOverlay: false
    ),
    .gentle: UrgencyConfig(
        level: .gentle,
        label: "Gentle",
        color: Color(hex: 0x2ED573),
        colorHex: "#2ED573",
        notificationStyle: .subtle,
        soundEnabled: true,
        vibrationPattern: [100],
        visualIntensity: 0.3,
        autoSnoozeMinutes: 5,
        requireConfirmToDismiss: false,
        fullScreenOverlay: false
    ),
    .passive: UrgencyConfig(
        level: .passive,
        label: "Passive",
        color: Color(hex: 0xA5B1C7),
        colorHex: "#A5B1C7",
        notificationStyle: .badge,
        soundEnabled: false,
        vibrationPattern: [],
        visualIntensity: 0.1,
        autoSnoozeMinutes: nil,
        requireConfirmToDismiss: false,
        fullScreenOverlay: false
    ),
]

let urgencyOrder: [UrgencyLevel] = [.critical, .important, .standard, .gentle, .passive]

func getUrgencyConfig(_ level: UrgencyLevel) -> UrgencyConfig {
    urgencyConfigs[level]!
}

func getUrgencyIndex(_ level: UrgencyLevel) -> Int {
    urgencyOrder.firstIndex(of: level) ?? 0
}

// MARK: - Color Extension

extension Color {
    init(hex: UInt, alpha: Double = 1.0) {
        self.init(
            .sRGB,
            red: Double((hex >> 16) & 0xFF) / 255.0,
            green: Double((hex >> 8) & 0xFF) / 255.0,
            blue: Double(hex & 0xFF) / 255.0,
            opacity: alpha
        )
    }
}