// Models/LocalIssue.swift
// -----------------------
// SwiftData model for issues flagged during an offline inspection.

import Foundation
import SwiftData

@Model
final class LocalIssue {

    @Attribute(.unique) var localId: String
    var serverId: Int?

    var inspectionLocalId: String    // references LocalInspection.localId
    var facilityServerId: Int        // facility this issue belongs to (replaces areaServerId)
    var severity: String             // "low" | "medium" | "high" | "critical"
    var issueDescription: String
    var issueStatus: String = "open"  // server status: "open" | "in_progress" | "resolved" | "pending_verification"
    /// JSON-encoded array of absolute local file paths, e.g. ["/var/.../photo1.jpg", ...]
    var photoLocalPathsJSON: String = "[]"
    /// JSON-encoded array of server paths after upload, e.g. ["uploads/issue_photos/abc.jpg", ...]
    var photoServerPathsJSON: String = "[]"

    /// Decoded local photo paths (up to 5)
    var photoLocalPaths: [String] {
        get { (try? JSONDecoder().decode([String].self, from: Data(photoLocalPathsJSON.utf8))) ?? [] }
        set { photoLocalPathsJSON = (try? String(data: JSONEncoder().encode(newValue), encoding: .utf8)) ?? "[]" }
    }

    /// Decoded server photo paths
    var photoServerPaths: [String] {
        get { (try? JSONDecoder().decode([String].self, from: Data(photoServerPathsJSON.utf8))) ?? [] }
        set { photoServerPathsJSON = (try? String(data: JSONEncoder().encode(newValue), encoding: .utf8)) ?? "[]" }
    }

    var createdAt: Date
    var syncStatus: String           // "pending" | "synced" | "failed"
    var syncRetryCount: Int
    var syncErrorMessage: String?

    var inspection: LocalInspection?

    init(
        inspectionLocalId: String,
        facilityServerId: Int,
        severity: String,
        description: String
    ) {
        self.localId           = UUID().uuidString
        self.serverId          = nil
        self.inspectionLocalId = inspectionLocalId
        self.facilityServerId  = facilityServerId
        self.severity          = severity
        self.issueDescription  = description
        self.issueStatus       = "open"
        self.photoLocalPathsJSON  = "[]"
        self.photoServerPathsJSON = "[]"
        self.createdAt         = Date()
        self.syncStatus        = "pending"
        self.syncRetryCount    = 0
        self.syncErrorMessage  = nil
    }

    var severityColor: String {
        switch severity {
        case "critical": return "red"
        case "high":     return "orange"
        case "medium":   return "yellow"
        default:         return "blue"
        }
    }
}