Funciones swift Precio de la luz

other.swift

import Foundation

struct PriceNet: Decodable {
    let price_id: String
    let tariff: String
    let price: Double
    let created_at: String
}

let json = """
[{"price_id":"c5f3ee68-fbf8-0df9-9af8-5bc44e5bffb3","tariff":"pcb","price":0.16611,"created_at":"2023-06-23T00:00:00+00:00"},{"price_id":"dac8df3a-17f1-3d65-f1b3-f673822d2cbf","tariff":"pcb","price":0.16026,"created_at":"2023-06-23T01:00:00+00:00"},{"price_id":"e4b31572-32b9-48e3-c694-2e2eaed6a4b0","tariff":"pcb","price":0.14731,"created_at":"2023-06-23T02:00:00+00:00"},{"price_id":"b29f0ef3-7226-9734-507d-350243dec14d","tariff":"pcb","price":0.14191,"created_at":"2023-06-23T03:00:00+00:00"},{"price_id":"1297743c-dd2e-3eba-a1ff-0e779b66f7e1","tariff":"pcb","price":0.13521,"created_at":"2023-06-23T04:00:00+00:00"},{"price_id":"aef5a278-2984-8d2a-9277-3d73ae290f8a","tariff":"pcb","price":0.13868,"created_at":"2023-06-23T05:00:00+00:00"},{"price_id":"773e7bc8-f98b-11c9-b993-09c71b0cf67d","tariff":"pcb","price":0.1522,"created_at":"2023-06-23T06:00:00+00:00"},{"price_id":"6beae10a-14e0-73b1-27ae-b6d5caf47241","tariff":"pcb","price":0.1661,"created_at":"2023-06-23T07:00:00+00:00"},{"price_id":"1bc57bdd-75d9-6b59-4bcc-7ef1613e3170","tariff":"pcb","price":0.19316,"created_at":"2023-06-23T08:00:00+00:00"},{"price_id":"008649f6-7f00-02ca-78ae-85252d59adca","tariff":"pcb","price":0.18285,"created_at":"2023-06-23T09:00:00+00:00"},{"price_id":"e70088a9-3f48-86a7-f345-de199bc7ec72","tariff":"pcb","price":0.21418,"created_at":"2023-06-23T10:00:00+00:00"},{"price_id":"d7ec3a97-75fd-75e1-fa68-a4c128491804","tariff":"pcb","price":0.20357,"created_at":"2023-06-23T11:00:00+00:00"},{"price_id":"c54e9eb0-4142-32eb-6324-8a9614757e75","tariff":"pcb","price":0.19822,"created_at":"2023-06-23T12:00:00+00:00"},{"price_id":"c2d774b4-82e2-5583-6935-280e66540d64","tariff":"pcb","price":0.19187,"created_at":"2023-06-23T13:00:00+00:00"},{"price_id":"caff8470-e860-49ed-fe3d-712453bbc4bc","tariff":"pcb","price":0.1412,"created_at":"2023-06-23T14:00:00+00:00"},{"price_id":"13815e99-de1a-52dd-0d1c-b0005610cdc0","tariff":"pcb","price":0.14132,"created_at":"2023-06-23T15:00:00+00:00"},{"price_id":"860585e7-251a-c8c7-f13f-ee0c54c84f6e","tariff":"pcb","price":0.15078,"created_at":"2023-06-23T16:00:00+00:00"},{"price_id":"1487767c-596a-d423-c3da-927d64fc9f33","tariff":"pcb","price":0.15319,"created_at":"2023-06-23T17:00:00+00:00"},{"price_id":"73689f2e-10de-0311-e912-7a4b8f9cdb4f","tariff":"pcb","price":0.21739,"created_at":"2023-06-23T18:00:00+00:00"},{"price_id":"e657533b-f278-0966-e70a-55b8675ce881","tariff":"pcb","price":0.23874,"created_at":"2023-06-23T19:00:00+00:00"},{"price_id":"f4f60d63-2a85-59ea-4174-0a33e7d8e758","tariff":"pcb","price":0.25073,"created_at":"2023-06-23T20:00:00+00:00"},{"price_id":"67e48efd-b4bb-50df-0e71-0c13fea278f6","tariff":"pcb","price":0.24621,"created_at":"2023-06-23T21:00:00+00:00"},{"price_id":"7bb28f7b-c369-36c0-4c79-0e2b8b8906ce","tariff":"pcb","price":0.19557,"created_at":"2023-06-23T22:00:00+00:00"},{"price_id":"4554a283-936f-1da0-a34d-86630a4e0f0b","tariff":"pcb","price":0.18627,"created_at":"2023-06-23T23:00:00+00:00"}]
"""

enum TypePrice {
    case veryCheap
    case cheap
    case regular
    case expensive
    case veryExpensive
}

struct Price: Identifiable {
    let id: UUID
    let tariff: String
    let price: Double
    let created_at: String
    let hour: String
}

extension Price {
    static func toPrice(_ priceNet: PriceNet) -> Price {
        let id = UUID(uuidString: priceNet.price_id) ?? UUID()
        let hour = formatCreatedAt(priceNet.created_at) ?? ""
        
        return Price(id: id, tariff: priceNet.tariff, price: priceNet.price, created_at: priceNet.created_at, hour: hour)
    }
    
    private static func formatCreatedAt(_ createdAt: String) -> String? {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
        
        if let date = dateFormatter.date(from: createdAt) {
            let hourFormatter = DateFormatter()
            hourFormatter.dateFormat = "HH"
            
            let startHour = hourFormatter.string(from: date)
            let endHour = hourFormatter.string(from: date.addingTimeInterval(3600)) // Agregar 1 hora (3600 segundos)
            
            return "\(startHour)-\(endHour)"
        }
        
        return nil
    }
}


func fetchPrices(completion: @escaping ([Price]?, Error?) -> Void) {

    if let jsonData = json.data(using: .utf8) {
        do {
            let priceNets = try JSONDecoder().decode([PriceNet].self, from: jsonData)
            let prices = priceNets.map { Price.toPrice($0) }
            completion(prices, nil)
        } catch {
            completion(nil, error)
        }
    } else {
        let error = NSError(domain: "com.example.app", code: -1, userInfo: [NSLocalizedDescriptionKey: "Failed to convert JSON data"])
        completion(nil, error)
    }
}

func formatCreatedAt(_ createdAt: String) -> String? {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
    
    if let date = dateFormatter.date(from: createdAt) {
        let hourFormatter = DateFormatter()
        hourFormatter.dateFormat = "HH"
        
        let startHour = hourFormatter.string(from: date)
        let endHour = hourFormatter.string(from: date.addingTimeInterval(3600)) // Agregar 1 hora (3600 segundos)
        
        return "\(startHour)-\(endHour)"
    }
    
    return nil
}

struct PriceStats {
    let averagePrice: Double
    let minPrice: Double
    let maxPrice: Double
    let minHour: String
    let maxHour: String
    let standardDeviation: Double
}


func calculateStats(from prices: [Price]) -> PriceStats? {
    guard !prices.isEmpty else {
        return nil
    }

    var sum: Double = 0.0
    var minPrice: Double = prices[0].price
    var maxPrice: Double = prices[0].price
    var minHour: String = prices[0].hour
    var maxHour: String = prices[0].hour

    for price in prices {
        sum += price.price

        if price.price < minPrice {
            minPrice = price.price
            minHour = price.hour
        }

        if price.price > maxPrice {
            maxPrice = price.price
            maxHour = price.hour
        }
    }

    let averagePrice = sum / Double(prices.count)

    var squaredDifferenceSum: Double = 0.0
    for price in prices {
        let difference = price.price - averagePrice
        squaredDifferenceSum += difference * difference
    }

    let standardDeviation = sqrt(squaredDifferenceSum / Double(prices.count))

    let stats = PriceStats(averagePrice: averagePrice, minPrice: minPrice, maxPrice: maxPrice, minHour: minHour, maxHour: maxHour, standardDeviation: standardDeviation)
    return stats
}


func calculateStandardDeviation(from values: [Double]) -> Double {
    // Calcular la desviación estándar desde los valores
    
    // Ejemplo de cálculo de desviación estándar
    let mean = values.reduce(0.0, +) / Double(values.count)
    let squaredDifferences = values.map { pow($0 - mean, 2) }
    let variance = squaredDifferences.reduce(0.0, +) / Double(values.count)
    let standardDeviation = sqrt(variance)
    
    return standardDeviation
}

func assignType(to price: Price, basedOn stats: PriceStats) -> TypePrice {
    let priceRange = (stats.maxPrice - stats.minPrice) / 3.0
    let deviationThreshold = (stats.standardDeviation * 0.3)

    if price.price <= stats.minPrice + priceRange {
        if price.price <= stats.minPrice + deviationThreshold {
            return .veryCheap
        } else {
            return .cheap
        }
    } else if price.price <= stats.minPrice + (2 * priceRange) {
        return .regular
    } else {
        if price.price >= stats.maxPrice - deviationThreshold {
            return .veryExpensive
        } else {
            return .expensive
        }
    }
}



func processPrices(_ prices: [Price]) {
    if let stats = calculateStats(from: prices) {
        for price in prices {
            let type = assignType(to: price, basedOn: stats)
            print("Price: \(price.price) - Type: \(type)")
        }
    } else {
        print("No prices available.")
    }
}

fetchPrices { prices, error in
    if let error = error {
        print("Error: \(error)")
    } else if let prices = prices {
      if let stats = calculateStats(from: prices) {

        print(stats)


          for price in prices {
              let type = assignType(to: price, basedOn: stats)
              print("Price: \(price.price) - Type: \(type)")
          }
      } else {
          print("No prices available.")
      }
    }
}

priceoflight.swift

import Foundation

struct PriceNet: Decodable {
    let price_id: String
    let tariff: String
    let price: Double
    let created_at: String
}

let json = """
[{"price_id":"21010cca-3fa0-2cda-daec-adf31dd9304b","tariff":"pcb","price":0.15577,"created_at":"2023-06-24T00:00:00+00:00"},{"price_id":"2f0db71d-3b5f-aaa4-e3af-b9ba16203b00","tariff":"pcb","price":0.14761,"created_at":"2023-06-24T01:00:00+00:00"},{"price_id":"70516687-1da9-6fac-5a21-f9e9695535af","tariff":"pcb","price":0.143,"created_at":"2023-06-24T02:00:00+00:00"},{"price_id":"eef2bdfc-b36a-e241-ee42-f436ce5b098f","tariff":"pcb","price":0.14746,"created_at":"2023-06-24T03:00:00+00:00"},{"price_id":"c0ae643e-6cbe-de82-d4ac-81bb37ffea83","tariff":"pcb","price":0.14772,"created_at":"2023-06-24T04:00:00+00:00"},{"price_id":"c42c23ae-1ca8-f68d-2e97-f7ab98d36f56","tariff":"pcb","price":0.14758,"created_at":"2023-06-24T05:00:00+00:00"},{"price_id":"3a60be52-0deb-dbd3-2234-24863e2cae5b","tariff":"pcb","price":0.13287,"created_at":"2023-06-24T06:00:00+00:00"},{"price_id":"46848ee3-b48e-89f7-7675-95e02db1aa2b","tariff":"pcb","price":0.1322,"created_at":"2023-06-24T07:00:00+00:00"},{"price_id":"f0b0710a-2783-bb2e-240d-b3b331da57a3","tariff":"pcb","price":0.12956,"created_at":"2023-06-24T08:00:00+00:00"},{"price_id":"23d8503f-4a59-9b20-0005-420c6f1687d7","tariff":"pcb","price":0.12084,"created_at":"2023-06-24T09:00:00+00:00"},{"price_id":"803e9a21-3f26-1cf1-3050-4fd5e0cc9091","tariff":"pcb","price":0.09084,"created_at":"2023-06-24T10:00:00+00:00"},{"price_id":"87e4e5be-3c11-b5f6-8508-e21fbfd3c954","tariff":"pcb","price":0.04862,"created_at":"2023-06-24T11:00:00+00:00"},{"price_id":"a47e927a-ed63-abea-58f8-82a2ede94287","tariff":"pcb","price":0.04276,"created_at":"2023-06-24T12:00:00+00:00"},{"price_id":"b6f9d25b-714b-1031-0f69-6af10049106c","tariff":"pcb","price":0.04824,"created_at":"2023-06-24T13:00:00+00:00"},{"price_id":"b19dc040-5dc7-bbb6-684e-3241c042f6b7","tariff":"pcb","price":0.04871,"created_at":"2023-06-24T14:00:00+00:00"},{"price_id":"e48bbf3d-3a6a-e5bd-67df-579114d13753","tariff":"pcb","price":0.03184,"created_at":"2023-06-24T15:00:00+00:00"},{"price_id":"bb7672e2-b46b-1e27-caa5-1574a2fda7bf","tariff":"pcb","price":0.05274,"created_at":"2023-06-24T16:00:00+00:00"},{"price_id":"1db3e97d-498d-4479-1852-f9efe61dd6b4","tariff":"pcb","price":0.11547,"created_at":"2023-06-24T17:00:00+00:00"},{"price_id":"4447a66c-928c-df7a-e865-00713cd83dfa","tariff":"pcb","price":0.12863,"created_at":"2023-06-24T18:00:00+00:00"},{"price_id":"ff9d81bb-a366-ede1-76e2-a234d1bd3935","tariff":"pcb","price":0.14212,"created_at":"2023-06-24T19:00:00+00:00"},{"price_id":"549ab2f3-e67b-be1c-abe8-9cecf2cbab9b","tariff":"pcb","price":0.1536,"created_at":"2023-06-24T20:00:00+00:00"},{"price_id":"3c825a57-c371-4f38-db36-ff68a241e35d","tariff":"pcb","price":0.17064,"created_at":"2023-06-24T21:00:00+00:00"},{"price_id":"d7de4195-af5d-aa33-64e3-ccc48ef3419b","tariff":"pcb","price":0.17422,"created_at":"2023-06-24T22:00:00+00:00"},{"price_id":"c348c0b6-cc9e-cd81-ee5b-db2ac6af2842","tariff":"pcb","price":0.17265,"created_at":"2023-06-24T23:00:00+00:00"}]
"""


struct Price: Identifiable {
    let id: UUID
    let tariff: String
    let price: Double
    let created_at: String
    let hour: String
}

extension Price {
    static func toPrice(_ priceNet: PriceNet) -> Price {
        let id = UUID(uuidString: priceNet.price_id) ?? UUID()
        let hour = formatCreatedAt(priceNet.created_at) ?? ""
        
        return Price(id: id, tariff: priceNet.tariff, price: priceNet.price, created_at: priceNet.created_at, hour: hour)
    }
    
    private static func formatCreatedAt(_ createdAt: String) -> String? {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
        
        if let date = dateFormatter.date(from: createdAt) {
            let hourFormatter = DateFormatter()
            hourFormatter.dateFormat = "HH"
            
            let startHour = hourFormatter.string(from: date)
            let endHour = hourFormatter.string(from: date.addingTimeInterval(3600)) // Agregar 1 hora (3600 segundos)
            
            return "\(startHour)-\(endHour)"
        }
        
        return nil
    }
}


func fetchPrices(completion: @escaping ([Price]?, Error?) -> Void) {

    if let jsonData = json.data(using: .utf8) {
        do {
            let priceNets = try JSONDecoder().decode([PriceNet].self, from: jsonData)
            let prices = priceNets.map { Price.toPrice($0) }
            completion(prices, nil)
        } catch {
            completion(nil, error)
        }
    } else {
        let error = NSError(domain: "com.example.app", code: -1, userInfo: [NSLocalizedDescriptionKey: "Failed to convert JSON data"])
        completion(nil, error)
    }
}

func formatCreatedAt(_ createdAt: String) -> String? {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
    
    if let date = dateFormatter.date(from: createdAt) {
        let hourFormatter = DateFormatter()
        hourFormatter.dateFormat = "HH"
        
        let startHour = hourFormatter.string(from: date)
        let endHour = hourFormatter.string(from: date.addingTimeInterval(3600)) // Agregar 1 hora (3600 segundos)
        
        return "\(startHour)-\(endHour)"
    }
    
    return nil
}

func calculateStats(from prices: [Price]) -> (averagePrice: Double, averagePriceDate: String, minPrice: Double, minPriceHour: String, maxPrice: Double, maxPriceHour: String, standardDeviation: Double, standardDeviationDate: String)? {
    guard !prices.isEmpty else {
        return nil
    }
    
    // Calculate average price and date
    let averagePrice = prices.reduce(0.0) { $0 + $1.price } / Double(prices.count)
    let averagePriceDate = prices[0].created_at
    
    // Calculate min and max prices and their hours
    var minPrice = prices[0].price
    var minPriceHour = prices[0].hour
    var maxPrice = prices[0].price
    var maxPriceHour = prices[0].hour
    
    for price in prices {
        if price.price < minPrice {
            minPrice = price.price
            minPriceHour = price.hour
        }
        
        if price.price > maxPrice {
            maxPrice = price.price
            maxPriceHour = price.hour
        }
    }
    
    // Calculate standard deviation and date
    let sumOfSquaredDeviations = prices.reduce(0.0) { $0 + pow($1.price - averagePrice, 2) }
    let standardDeviation = sqrt(sumOfSquaredDeviations / Double(prices.count))
    let standardDeviationDate = prices[0].created_at
    
    return (averagePrice, averagePriceDate, minPrice, minPriceHour, maxPrice, maxPriceHour, standardDeviation, standardDeviationDate)
}

fetchPrices { prices, error in
    if let error = error {
        print("Error: \(error)")
    } else if let prices = prices {
        if let stats = calculateStats(from: prices) {
            let (averagePrice, averagePriceDate, minPrice, minPriceHour, maxPrice, maxPriceHour, standardDeviation, standardDeviationDate) = stats
            
            print("Average Price: \(averagePrice) - Date: \(averagePriceDate)")
            print("Min Price: \(minPrice) - Hour: \(minPriceHour)")
            print("Max Price: \(maxPrice) - Hour: \(maxPriceHour)")
            print("Standard Deviation: \(standardDeviation) - Date: \(standardDeviationDate)")
        }
    }
}