//
//  Extensions.swift
//  Werkout_ios
//
//  Created by Trey Tartt on 6/20/23.
//

import Foundation

extension Dictionary {
    func percentEncoded() -> Data? {
        map { key, value in
            let escapedKey = "\(key)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
            let escapedValue = "\(value)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
            return escapedKey + "=" + escapedValue
        }
        .joined(separator: "&")
        .data(using: .utf8)
    }
}

extension CharacterSet {
    static let urlQueryValueAllowed: CharacterSet = {
        let generalDelimitersToEncode = ":#[]@" // does not include "?" or "/" due to RFC 3986 - Section 3.4
        let subDelimitersToEncode = "!$&'()*+,;="
        
        var allowed: CharacterSet = .urlQueryAllowed
        allowed.remove(charactersIn: "\(generalDelimitersToEncode)\(subDelimitersToEncode)")
        return allowed
    }()
}

extension Date {
    var timeFormatForUpload: String {
        let isoFormatter = DateFormatter()
        isoFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssX"
        return isoFormatter.string(from: self)
    }
}

extension String {
    var dateFromServerDate: Date? {
        let df = DateFormatter()
        df.dateFormat = "yyyy-MM-dd'T'HH:mm:ssX"
        df.locale = Locale(identifier: "en_US_POSIX")
        return df.date(from: self)
    }
    
    var plannedDate: Date? {
        let df = DateFormatter()
        df.dateFormat = "yyyy-MM-dd"
        df.locale = Locale(identifier: "en_US_POSIX")
        return df.date(from: self)
    }
}

extension Date {
    func get(_ components: Calendar.Component..., calendar: Calendar = Calendar.current) -> DateComponents {
        return calendar.dateComponents(Set(components), from: self)
    }
    
    func get(_ component: Calendar.Component, calendar: Calendar = Calendar.current) -> Int {
        return calendar.component(component, from: self)
    }
    
    var formatForPlannedWorkout: String {
        let df = DateFormatter()
        df.dateFormat = "yyyy-MM-dd"
        df.locale = Locale(identifier: "en_US_POSIX")
        return df.string(from: self)
    }
    
    var weekDay: String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "EEE"
        let weekDay = dateFormatter.string(from: self)
        return weekDay
    }
    
    var monthString: String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "MMM"
        let weekDay = dateFormatter.string(from: self)
        return weekDay
    }
    
    var dateString: String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "d"
        let weekDay = dateFormatter.string(from: self)
        return weekDay
    }
}