1→//
     2→//  PlannerTask.swift
     3→//  Planner2026-iOS
     4→//
     5→//  Core task model with location and AI metadata
     6→//
     7→
     8→import Foundation
     9→import SwiftUI
    10→
    11→// MARK: - Enums
    12→
    13→enum TaskPriority: String, Codable, CaseIterable {
    14→    case low = "Low"
    15→    case medium = "Medium"
    16→    case high = "High"
    17→    case urgent = "Urgent"
    18→
    19→    var sortOrder: Int {
    20→        switch self {
    21→        case .urgent: return 0
    22→        case .high: return 1
    23→        case .medium: return 2
    24→        case .low: return 3
    25→        }
    26→    }
    27→
    28→    var icon: String {
    29→        switch self {
    30→        case .low: return "arrow.down"
    31→        case .medium: return "minus"
    32→        case .high: return "arrow.up"
    33→        case .urgent: return "exclamationmark.2"
    34→        }
    35→    }
    36→
    37→    var colorHex: String {
    38→        switch self {
    39→        case .low: return "#8E8E93"
    40→        case .medium: return "#007AFF"
    41→        case .high: return "#FF9500"
    42→        case .urgent: return "#FF3B30"
    43→        }
    44→    }
    45→
    46→    var color: Color {
    47→        Color(hex: colorHex)
    48→    }
    49→}
    50→
    51→enum TaskStatus: String, Codable, CaseIterable {
    52→    case pending = "Pending"
    53→    case inProgress = "In Progress"
    54→    case completed = "Completed"
    55→    case archived = "Archived"
    56→
    57→    var isCompleted: Bool {
    58→        self == .completed
    59→    }
    60→}
    61→
    62→// MARK: - PlannerTask
    63→
    64→struct PlannerTask: Identifiable, Codable, Hashable {
    65→    var id: UUID = UUID()
    66→    var title: String
    67→    var notes: String = ""
    68→    var priority: TaskPriority = .medium
    69→    var status: TaskStatus = .pending
    70→    var dueDate: Date?
    71→    var scheduledDate: Date?           // AI-scheduled date
    72→    var scheduledTime: Date?           // AI-scheduled time
    73→    var estimatedMinutes: Int?         // Estimated duration
    74→    var actualMinutes: Int?            // Actual time spent
    75→    var projectId: UUID?               // Parent project
    76→    var subtasks: [Subtask] = []
    77→    var tags: [UUID] = []
    78→
    79→    // Location features
    80→    var locationId: UUID?              // Associated location
    81→    var hasGeofenceReminder: Bool = false
    82→    var geofenceRadius: Double = 100   // meters
    83→    var triggerOnEntry: Bool = true    // vs on exit
    84→
    85→    // AI metadata
    86→    var isAISuggested: Bool = false
    87→    var aiConfidenceScore: Double?     // 0-1
    88→    var patternNotes: String?          // AI pattern insights
    89→
    90→    // Timestamps
    91→    var createdAt: Date = Date()
    92→    var completedAt: Date?
    93→    var modifiedAt: Date = Date()
    94→
    95→    // MARK: - Computed Properties
    96→
    97→    var progress: Double {
    98→        guard !subtasks.isEmpty else { return status == .completed ? 1.0 : 0.0 }
    99→        return Double(subtasks.filter { $0.isCompleted }.count) / Double(subtasks.count)
   100→    }
   101→
   102→    var isOverdue: Bool {
   103→        guard let due = dueDate, status != .completed else { return false }
   104→        return due < Date()
   105→    }
   106→
   107→    var isDueToday: Bool {
   108→        guard let due = dueDate else { return false }
   109→        return Calendar.current.isDateInToday(due)
   110→    }
   111→
   112→    var isDueTomorrow: Bool {
   113→        guard let due = dueDate else { return false }
   114→        return Calendar.current.isDateInTomorrow(due)
   115→    }
   116→
   117→    var isDueThisWeek: Bool {
   118→        guard let due = dueDate else { return false }
   119→        return Calendar.current.isDate(due, equalTo: Date(), toGranularity: .weekOfYear)
   120→    }
   121→
   122→    var completedSubtasksCount: Int {
   123→        subtasks.filter { $0.isCompleted }.count
   124→    }
   125→
   126→    var hasSubtasks: Bool {
   127→        !subtasks.isEmpty
   128→    }
   129→
   130→    var estimatedDuration: String? {
   131→        guard let minutes = estimatedMinutes else { return nil }
   132→        if minutes < 60 {
   133→            return "\(minutes)m"
   134→        } else {
   135→            let hours = minutes / 60
   136→            let remainingMinutes = minutes % 60
   137→            if remainingMinutes == 0 {
   138→                return "\(hours)h"
   139→            }
   140→            return "\(hours)h \(remainingMinutes)m"
   141→        }
   142→    }
   143→}
   144→
   145→// MARK: - Subtask
   146→
   147→struct Subtask: Identifiable, Codable, Hashable {
   148→    var id: UUID = UUID()
   149→    var title: String
   150→    var isCompleted: Bool = false
   151→    var createdAt: Date = Date()
   152→    var completedAt: Date?
   153→}
   154→
   155→// MARK: - Preview Support
   156→
   157→#if DEBUG
   158→extension PlannerTask {
   159→    static var preview: PlannerTask {
   160→        PlannerTask(
   161→            title: "Complete project proposal",
   162→            notes: "Include budget estimates and timeline",
   163→            priority: .high,
   164→            dueDate: Calendar.current.date(byAdding: .day, value: 2, to: Date()),
   165→            estimatedMinutes: 120,
   166→            subtasks: [
   167→                Subtask(title: "Research competitors", isCompleted: true),
   168→                Subtask(title: "Draft outline", isCompleted: true),
   169→                Subtask(title: "Write executive summary", isCompleted: false),
   170→                Subtask(title: "Review with team", isCompleted: false)
   171→            ]
   172→        )
   173→    }
   174→
   175→    static var samples: [PlannerTask] {
   176→        [
   177→            PlannerTask(
   178→                title: "Morning workout",
   179→                priority: .medium,
   180→                status: .completed,
   181→                dueDate: Date(),
   182→                estimatedMinutes: 45,
   183→                completedAt: Date()
   184→            ),
   185→            PlannerTask(
   186→                title: "Call dentist",
   187→                priority: .low,
   188→                dueDate: Calendar.current.date(byAdding: .day, value: 1, to: Date()),
   189→                hasGeofenceReminder: true,
   190→                triggerOnEntry: false
   191→            ),
   192→            PlannerTask(
   193→                title: "Prepare presentation",
   194→                priority: .urgent,
   195→                dueDate: Date(),
   196→                estimatedMinutes: 180
   197→            )
   198→        ]
   199→    }
   200→}
   201→#endif
   202→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>