import CoreLocation
import Foundation

extension String {
    var firstLetter: String {
        String(prefix(1)).uppercased()
    }

    var makeReply: String {
        let allLines = components(separatedBy: .newlines)
        let nonBlankLines = allLines.filter { !$0.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty }
        var result = nonBlankLines.joined(separator: "\n")
        result = "> \(result)"
        return result
    }

    var isLocation: Bool {
        hasPrefix("geo:")
    }

    var getLatLon: CLLocationCoordinate2D {
        let geo = components(separatedBy: ":")[1]
        let parts = geo.components(separatedBy: ",")
        let lat = Double(parts[0]) ?? 0.0
        let lon = Double(parts[1]) ?? 0.0
        return CLLocationCoordinate2D(latitude: lat, longitude: lon)
    }

    var isContact: Bool {
        hasPrefix("contact:")
    }

    var getContactJid: String {
        components(separatedBy: ":")[1]
    }
}

extension String {
    var attachmentType: MessageAttachmentType {
        let ext = (self as NSString).pathExtension.lowercased()

        switch ext {
        case "mov", "mp4", "avi":
            return .movie

        case "jpg", "png", "gif":
            return .image

        case "mp3", "wav", "m4a":
            return .audio

        case "txt", "doc", "pdf":
            return .file

        default:
            return .file
        }
    }
}