diff --git a/src/main/java/com/example/Main.java b/src/main/java/com/example/Main.java index 20a692ac..445feac5 100644 --- a/src/main/java/com/example/Main.java +++ b/src/main/java/com/example/Main.java @@ -2,8 +2,291 @@ import com.example.api.ElpriserAPI; +import java.text.NumberFormat; +import java.time.DateTimeException; +import java.time.LocalDate; +import java.time.format.DateTimeFormatter; +import java.util.*; + + public class Main { + static DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("HH"); + static NumberFormat numberFormat = NumberFormat.getNumberInstance(); public static void main(String[] args) { - ElpriserAPI elpriserAPI = new ElpriserAPI(); + + ElpriserAPI elpriserApi = new ElpriserAPI(); + Locale.setDefault(Locale.of("sv", "SE")); + System.out.println("Välkommen till Elpris-kollen!"); + String zoneOf = null; + String dateOf = null; + String chargingInput = null; + boolean isSorted = false; + + List validZones = new ArrayList<>(); + validZones.add("SE1"); + validZones.add("SE2"); + validZones.add("SE3"); + validZones.add("SE4"); + + List validHours = new ArrayList<>(); + validHours.add("2h"); + validHours.add("4h"); + validHours.add("8h"); + + + if (args.length == 0) { helpMe(); + } + + for (int i = 0; i < args.length; i++) { + switch (args[i]) { + case "--zone" -> { if (i + 1 < args.length) { + zoneOf = args[++i]; + } + } + case "--date" -> { if (i + 1 < args.length) { + dateOf = args[++i]; + } + } + case "--charging" -> { if (i + 1 < args.length) { + chargingInput = args[++i]; + } + } + case "--sorted" -> + isSorted = true; + + case "--help" -> { helpMe(); return;} + + } + + } + LocalDate dagensDatum; + + if (dateOf != null) + try { + dagensDatum = LocalDate.parse(dateOf); + } catch (DateTimeException e) { + System.out.println("Ogiltigt datum: " + dateOf); + helpMe(); + return; + } + else { + dagensDatum = LocalDate.now(); + } + LocalDate tomorrow = dagensDatum.plusDays(1); + ElpriserAPI.Prisklass zon; + + + if (zoneOf == null || !validZones.contains(zoneOf.toUpperCase())) { + System.out.println("Ogiltig zon: " + zoneOf); + helpMe(); + return; + } + zon = ElpriserAPI.Prisklass.valueOf(zoneOf.toUpperCase()); + List priserIdag = elpriserApi.getPriser(dagensDatum, zon); + if(priserIdag.isEmpty()) { + System.out.println("Inga priser hittade för idag"); + return; + } else { + System.out.println("Dagens priser:"); + } + List priserImorgon = elpriserApi.getPriser(tomorrow, zon); + if(priserImorgon.isEmpty()){ + System.out.println("Inga priser för imorgon hittades"); + } else { + System.out.println("Morgondagens priser:"); + } + + numberFormat.setMaximumFractionDigits(2); + numberFormat.setMinimumFractionDigits(2); + + List kombineradeListor = combinedLists(priserIdag,priserImorgon); + + + + int timmar =0; + if (chargingInput != null) { + if (!validHours.contains(chargingInput.toLowerCase())) { + System.out.println("Ogiltig charging: " + chargingInput); + helpMe(); + return; + } + try { + timmar = Integer.parseInt(chargingInput.toLowerCase().replace("h","")); + } catch (NumberFormatException e) { + helpMe(); + return; + } + } + + if (timmar > 0) { + chargingWindow(kombineradeListor, timmar); + return; + } + if (isSorted) { + List sorteradePriser = isSortedCombined(priserIdag, priserImorgon); + printPriser(sorteradePriser); + } else { + printPriser(kombineradeListor); + } + + + + priceMinMax(kombineradeListor); + medelPris(kombineradeListor); + calculateHourlyAverages(priserIdag); + + } + + public static List combinedLists(List priserIdag, List priserImorgon) { + List kombineradeLaddpriser = new ArrayList<>(); + if (priserIdag != null) kombineradeLaddpriser.addAll(priserIdag); + if (priserImorgon != null) kombineradeLaddpriser.addAll(priserImorgon); + + return kombineradeLaddpriser; + } + + public static void chargingWindow (List elpriserLadda, int timmar) { + + DateTimeFormatter minuteFormatter = DateTimeFormatter.ofPattern("HH:mm"); + + + if (elpriserLadda == null) { + System.out.println("Inga eller för få timmar för att beräkna laddningsfönster."); + return; + } + + double minSumma = Double.MAX_VALUE; + int startIndex = -1; + + for (int i = 0; i <= elpriserLadda.size() - timmar; i++) { + double summa = 0.0; + for (int j = 0; j < timmar; j++) { + summa += elpriserLadda.get(i+j).sekPerKWh(); + } + if (summa< minSumma) { + minSumma = summa; + startIndex = i; + } + + } + if (startIndex != -1) { + ElpriserAPI.Elpris start = elpriserLadda.get(startIndex); + ElpriserAPI.Elpris slut = elpriserLadda.get(startIndex + timmar -1); + + String startTid = start.timeStart().format(minuteFormatter); + String slutTid = slut.timeEnd().format(minuteFormatter); + double snittPris = (minSumma/timmar) * 100; + + + System.out.printf("Billigaste laddningsfönster för %dh är kl %s-%s\nMedelpris för fönster: %.2f öre\n Påbörja laddning %s", timmar, startTid, slutTid, snittPris, startTid); + } + } + //Processar prislistan som får 96 priser + public static void calculateHourlyAverages (List elpriser96) { + if (elpriser96.size() > 48) { + //i är 0; så länge i är mindre än storleken på listan; öka i med 4 + for (int i = 0; i < elpriser96.size(); i += 4) { + //I varje loop, stoppa de fyra värdena i en sublist + List listaPerTimme = elpriser96.subList(i, i + 4); + + double sum = listaPerTimme.stream().mapToDouble(ElpriserAPI.Elpris::sekPerKWh).sum(); + double medelPris = sum / 4.0; + + int timme = i / 4; + int timme2 = timme + 1; + + String timDel = String.format("%02d-%02d", timme, timme2); + double medelprisToOre = medelPris * 100; + + + System.out.printf("%s Medelpris: %.2f öre\n", timDel, medelprisToOre); + } + } + } + + static void printPriser (List priser) { + priser.forEach(elpriser -> System.out.printf(""" + %s-%s %.2f öre + """,elpriser.timeStart().format(timeFormatter), elpriser.timeEnd().format(timeFormatter), elpriser.sekPerKWh()*100)); + } + + public static List isSortedCombined (List priserIdag, List priserImorgon) { + List sammansattaPriser = new ArrayList<>(); + sammansattaPriser.addAll(priserIdag); + sammansattaPriser.addAll(priserImorgon); + sammansattaPriser.sort(Comparator.comparing(ElpriserAPI.Elpris::sekPerKWh).reversed().thenComparing(ElpriserAPI.Elpris::timeStart)); + + return sammansattaPriser; + } + + private static void medelPris(List prisLista) { + double summa = 0.0; + if (prisLista == null) { + System.out.println("Ingen data tillgänglig för medelpris"); + return; + } + for (ElpriserAPI.Elpris elpriser : prisLista) { + summa += elpriser.sekPerKWh(); + } + double medelPrisOfDay = summa/ prisLista.size() *100; + System.out.printf("Medelpris: %.2f öre \n", medelPrisOfDay); + } + + public static void priceMinMax (List prisLista) { + //todo: bryt ut max till en egen metod + double minPris = Double.MAX_VALUE; + double maxPris = Double.MIN_VALUE; + String minTid = null; + String minTidSlut = null; + String maxTid = null; + String maxTidSlut = null; + if (prisLista.isEmpty()) { + System.out.println("Ingen data finns att visa"); + return; + } + + for (ElpriserAPI.Elpris elpriser : prisLista) { + double worthOf = elpriser.sekPerKWh() *100; + + if (minPris > worthOf ) { + minPris = worthOf; + minTid = elpriser.timeStart().format(timeFormatter); + minTidSlut = elpriser.timeEnd().format(timeFormatter); + } + if (maxPris < worthOf) { + maxPris = worthOf; + maxTid = elpriser.timeStart().format(timeFormatter); + maxTidSlut = elpriser.timeEnd().format(timeFormatter); + } + } + System.out.printf("Lägsta pris för dagen: %.2f öre/KWh Kl: %s - %s \n", minPris, minTid, minTidSlut); + System.out.printf("Högsta pris för dagen: %.2f öre/KWh Kl: %s - %s \n", maxPris, maxTid, maxTidSlut); + + } + + // metod för --help att skickas till if-sats + public static void helpMe() { + System.out.println(""" + Hjälpcenter + ______________________ + + Usage / Användning: + java -cp target/classes com.example.Main [alternativ] + + Alternativ: + --zone SE1|SE2|SE3|SE4 (obligatoriskt) Välj giltig elpris-zon + --date YYYY-MM-DD (valfritt) Välj datum, t.ex. 2025-09-21 + --charging 2h|4h|8h (valfritt) Hitta billigaste laddningsfönster + --sorted (valfritt) Sortera priser fallande + --help (valfritt) Visa denna hjälptext + + Exempel: + java Main --zone SE3 -- date 2025-09-21 --charging 4h + """); } } + +// java -cp target/classes com.example.Main --zone SE2 --date 2025-09-04 --sorted + + + diff --git a/src/test/java/com/example/MainTest.java b/src/test/java/com/example/MainTest.java index 6199d951..c61f3589 100644 --- a/src/test/java/com/example/MainTest.java +++ b/src/test/java/com/example/MainTest.java @@ -43,7 +43,8 @@ void getPriser_shouldReturnParsedPrices_whenMockDataIsProvided() { [{"SEK_per_kWh":0.12229,"EUR_per_kWh":0.01112,"EXR":10.997148,"time_start":"2025-09-04T00:00:00+02:00","time_end":"2025-09-04T01:00:00+02:00"},{"SEK_per_kWh":0.09886,"EUR_per_kWh":0.00899,"EXR":10.997148,"time_start":"2025-09-04T01:00:00+02:00","time_end":"2025-09-04T02:00:00+02:00"},{"SEK_per_kWh":0.09095,"EUR_per_kWh":0.00827,"EXR":10.997148,"time_start":"2025-09-04T02:00:00+02:00","time_end":"2025-09-04T03:00:00+02:00"},{"SEK_per_kWh":0.04201,"EUR_per_kWh":0.00382,"EXR":10.997148,"time_start":"2025-09-04T03:00:00+02:00","time_end":"2025-09-04T04:00:00+02:00"},{"SEK_per_kWh":0.04146,"EUR_per_kWh":0.00377,"EXR":10.997148,"time_start":"2025-09-04T04:00:00+02:00","time_end":"2025-09-04T05:00:00+02:00"},{"SEK_per_kWh":0.04465,"EUR_per_kWh":0.00406,"EXR":10.997148,"time_start":"2025-09-04T05:00:00+02:00","time_end":"2025-09-04T06:00:00+02:00"},{"SEK_per_kWh":0.32991,"EUR_per_kWh":0.03,"EXR":10.997148,"time_start":"2025-09-04T06:00:00+02:00","time_end":"2025-09-04T07:00:00+02:00"},{"SEK_per_kWh":0.47123,"EUR_per_kWh":0.04285,"EXR":10.997148,"time_start":"2025-09-04T07:00:00+02:00","time_end":"2025-09-04T08:00:00+02:00"},{"SEK_per_kWh":0.68182,"EUR_per_kWh":0.062,"EXR":10.997148,"time_start":"2025-09-04T08:00:00+02:00","time_end":"2025-09-04T09:00:00+02:00"},{"SEK_per_kWh":0.4125,"EUR_per_kWh":0.03751,"EXR":10.997148,"time_start":"2025-09-04T09:00:00+02:00","time_end":"2025-09-04T10:00:00+02:00"},{"SEK_per_kWh":0.29571,"EUR_per_kWh":0.02689,"EXR":10.997148,"time_start":"2025-09-04T10:00:00+02:00","time_end":"2025-09-04T11:00:00+02:00"},{"SEK_per_kWh":0.06136,"EUR_per_kWh":0.00558,"EXR":10.997148,"time_start":"2025-09-04T11:00:00+02:00","time_end":"2025-09-04T12:00:00+02:00"},{"SEK_per_kWh":0.03662,"EUR_per_kWh":0.00333,"EXR":10.997148,"time_start":"2025-09-04T12:00:00+02:00","time_end":"2025-09-04T13:00:00+02:00"},{"SEK_per_kWh":0.0375,"EUR_per_kWh":0.00341,"EXR":10.997148,"time_start":"2025-09-04T13:00:00+02:00","time_end":"2025-09-04T14:00:00+02:00"},{"SEK_per_kWh":0.26822,"EUR_per_kWh":0.02439,"EXR":10.997148,"time_start":"2025-09-04T14:00:00+02:00","time_end":"2025-09-04T15:00:00+02:00"},{"SEK_per_kWh":0.30429,"EUR_per_kWh":0.02767,"EXR":10.997148,"time_start":"2025-09-04T15:00:00+02:00","time_end":"2025-09-04T16:00:00+02:00"},{"SEK_per_kWh":0.36675,"EUR_per_kWh":0.03335,"EXR":10.997148,"time_start":"2025-09-04T16:00:00+02:00","time_end":"2025-09-04T17:00:00+02:00"},{"SEK_per_kWh":0.58296,"EUR_per_kWh":0.05301,"EXR":10.997148,"time_start":"2025-09-04T17:00:00+02:00","time_end":"2025-09-04T18:00:00+02:00"},{"SEK_per_kWh":0.92145,"EUR_per_kWh":0.08379,"EXR":10.997148,"time_start":"2025-09-04T18:00:00+02:00","time_end":"2025-09-04T19:00:00+02:00"},{"SEK_per_kWh":1.5054,"EUR_per_kWh":0.13689,"EXR":10.997148,"time_start":"2025-09-04T19:00:00+02:00","time_end":"2025-09-04T20:00:00+02:00"},{"SEK_per_kWh":1.00888,"EUR_per_kWh":0.09174,"EXR":10.997148,"time_start":"2025-09-04T20:00:00+02:00","time_end":"2025-09-04T21:00:00+02:00"},{"SEK_per_kWh":0.63179,"EUR_per_kWh":0.05745,"EXR":10.997148,"time_start":"2025-09-04T21:00:00+02:00","time_end":"2025-09-04T22:00:00+02:00"},{"SEK_per_kWh":0.56382,"EUR_per_kWh":0.05127,"EXR":10.997148,"time_start":"2025-09-04T22:00:00+02:00","time_end":"2025-09-04T23:00:00+02:00"},{"SEK_per_kWh":0.52951,"EUR_per_kWh":0.04815,"EXR":10.997148,"time_start":"2025-09-04T23:00:00+02:00","time_end":"2025-09-05T00:00:00+02:00"}]"""; // 2. Set the mock response using the static method. - ElpriserAPI.setMockResponse(fakeJson); + LocalDate today = LocalDate.of(2025, 9, 4); + ElpriserAPI.setMockResponseForDate(today,fakeJson); // 3. Create an instance of the class as a student would. ElpriserAPI api = new ElpriserAPI(false); // Disable caching for predictable tests @@ -109,7 +110,8 @@ void displayMeanPrice_withValidData() { {"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T02:00:00+02:00","time_end":"2025-09-04T03:00:00+02:00"}, {"SEK_per_kWh":0.40,"EUR_per_kWh":0.04,"EXR":10.0,"time_start":"2025-09-04T03:00:00+02:00","time_end":"2025-09-04T04:00:00+02:00"}]"""; - ElpriserAPI.setMockResponse(mockJson); + LocalDate today = LocalDate.of(2025, 9, 4); + ElpriserAPI.setMockResponseForDate(today,mockJson); Main.main(new String[]{"--zone", "SE3", "--date", "2025-09-04"}); @@ -127,7 +129,8 @@ void displayMinMaxPrices_withValidData() { {"SEK_per_kWh":0.80,"EUR_per_kWh":0.08,"EXR":10.0,"time_start":"2025-09-04T02:00:00+02:00","time_end":"2025-09-04T03:00:00+02:00"}, {"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T03:00:00+02:00","time_end":"2025-09-04T04:00:00+02:00"}]"""; - ElpriserAPI.setMockResponse(mockJson); + LocalDate today = LocalDate.of(2025, 9, 4); + ElpriserAPI.setMockResponseForDate(today,mockJson); Main.main(new String[]{"--zone", "SE1", "--date", "2025-09-04"}); @@ -144,13 +147,22 @@ void displayMinMaxPrices_withValidData() { @Test void displaySortedPrices_whenRequested() { - String mockJson = """ - [{"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T00:00:00+02:00","time_end":"2025-09-04T01:00:00+02:00"}, - {"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-04T01:00:00+02:00","time_end":"2025-09-04T02:00:00+02:00"}, - {"SEK_per_kWh":0.20,"EUR_per_kWh":0.02,"EXR":10.0,"time_start":"2025-09-04T02:00:00+02:00","time_end":"2025-09-04T03:00:00+02:00"}, - {"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-04T03:00:00+02:00","time_end":"2025-09-04T04:00:00+02:00"}]"""; + // This test ensures charging window can span days when next day data exists + LocalDate today = LocalDate.of(2025, 9, 4); + LocalDate tomorrow = today.plusDays(1); - ElpriserAPI.setMockResponse(mockJson); + String mockJsonToday = """ + [{"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T20:00:00+02:00","time_end":"2025-09-04T21:00:00+02:00"}, + {"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-04T21:00:00+02:00","time_end":"2025-09-04T22:00:00+02:00"}, + {"SEK_per_kWh":0.20,"EUR_per_kWh":0.02,"EXR":10.0,"time_start":"2025-09-04T22:00:00+02:00","time_end":"2025-09-04T23:00:00+02:00"}, + {"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-04T23:00:00+02:00","time_end":"2025-09-04T00:00:00+02:00"}]"""; + String mockJsonTomorrow = """ + [{"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-05T00:00:00+02:00","time_end":"2025-09-05T01:00:00+02:00"}, + {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-05T01:00:00+02:00","time_end":"2025-09-05T02:00:00+02:00"}, + {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-05T02:00:00+02:00","time_end":"2025-09-05T03:00:00+02:00"}]"""; + + ElpriserAPI.setMockResponseForDate(today, mockJsonToday); + ElpriserAPI.setMockResponseForDate(tomorrow, mockJsonTomorrow); Main.main(new String[]{"--zone", "SE2", "--date", "2025-09-04", "--sorted"}); @@ -158,10 +170,13 @@ void displaySortedPrices_whenRequested() { // Expected sorted output (ascending by price) List expectedOrder = List.of( - "01-02 10,00 öre", - "03-04 10,00 öre", - "02-03 20,00 öre", - "00-01 30,00 öre" + "20-21 30,00 öre", + "22-23 20,00 öre", + "01-02 15,00 öre", + "02-03 15,00 öre", + "21-22 10,00 öre", + "23-00 10,00 öre", + "00-01 10,00 öre" ); // Extract actual lines that match the pattern @@ -183,7 +198,9 @@ void findOptimalCharging2Hours() { {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-04T03:00:00+02:00","time_end":"2025-09-04T04:00:00+02:00"}, {"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T04:00:00+02:00","time_end":"2025-09-04T05:00:00+02:00"}]"""; - ElpriserAPI.setMockResponse(mockJson); + LocalDate today = LocalDate.of(2025, 9, 4); + + ElpriserAPI.setMockResponseForDate(today, mockJson); Main.main(new String[]{"--zone", "SE3", "--date", "2025-09-04", "--charging", "2h"}); @@ -204,7 +221,9 @@ void findOptimalCharging4Hours() { {"SEK_per_kWh":0.20,"EUR_per_kWh":0.02,"EXR":10.0,"time_start":"2025-09-04T04:00:00+02:00","time_end":"2025-09-04T05:00:00+02:00"}, {"SEK_per_kWh":0.30,"EUR_per_kWh":0.03,"EXR":10.0,"time_start":"2025-09-04T05:00:00+02:00","time_end":"2025-09-04T06:00:00+02:00"}]"""; - ElpriserAPI.setMockResponse(mockJson); + LocalDate today = LocalDate.of(2025, 9, 4); + + ElpriserAPI.setMockResponseForDate(today, mockJson); Main.main(new String[]{"--zone", "SE1", "--date", "2025-09-04", "--charging", "4h"}); @@ -223,7 +242,9 @@ void chargingWindowDoesNotUseNextDay_whenNextDayUnavailable() { [{"SEK_per_kWh":0.20,"EUR_per_kWh":0.02,"EXR":10.0,"time_start":"2025-09-04T00:00:00+02:00","time_end":"2025-09-04T01:00:00+02:00"}, {"SEK_per_kWh":0.10,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-04T01:00:00+02:00","time_end":"2025-09-04T02:00:00+02:00"}, {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-04T02:00:00+02:00","time_end":"2025-09-04T03:00:00+02:00"}]"""; - ElpriserAPI.setMockResponse(mockJsonToday); + LocalDate today = LocalDate.of(2025, 9, 4); + ElpriserAPI.setMockResponseForDate(today,mockJsonToday); + Main.main(new String[]{"--zone", "SE3", "--date", "2025-09-04", "--charging", "2h"}); String output = bos.toString(); // Best 2h window should be 01-03 (0.10 + 0.15) @@ -235,7 +256,7 @@ void chargingWindowDoesNotUseNextDay_whenNextDayUnavailable() { void findOptimalCharging8Hours() { // Create mock data with 12 hours to allow for 8-hour window StringBuilder jsonBuilder = new StringBuilder("["); - double[] prices = {0.50, 0.10, 0.05, 0.15, 0.08, 0.12, 0.06, 0.09, 0.25, 0.30, 0.35, 0.40}; + double[] prices = {0.50, 0.10, 0.05, 0.15, 0.08, 0.12, 0.06, 0.09, 0.25, 0.30, 0.35, 0.40, 0.50, 0.10, 0.05, 0.15, 0.08, 0.12, 0.06, 0.09, 0.25, 0.30, 0.35, 0.40}; for (int i = 0; i < prices.length; i++) { if (i > 0) jsonBuilder.append(","); @@ -243,12 +264,20 @@ void findOptimalCharging8Hours() { Locale.US, """ {"SEK_per_kWh":%.2f,"EUR_per_kWh":%.3f,"EXR":10.0,"time_start":"2025-09-04T%02d:00:00+02:00","time_end":"2025-09-04T%02d:00:00+02:00"}""", - prices[i], prices[i] / 10, i, i + 1 + prices[i], prices[i] / 10, i, (i + 1) % 24 )); } jsonBuilder.append("]"); - ElpriserAPI.setMockResponse(jsonBuilder.toString()); + LocalDate today = LocalDate.of(2025, 9, 4); + ElpriserAPI.setMockResponseForDate(today, jsonBuilder.toString()); + + LocalDate tomorrow = today.plusDays(1); + String mockJsonTomorrow = """ + [{"SEK_per_kWh":0.1,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"2025-09-05T00:00:00+02:00","time_end":"2025-09-05T01:00:00+02:00"}, + {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-05T01:00:00+02:00","time_end":"2025-09-05T02:00:00+02:00"}, + {"SEK_per_kWh":0.15,"EUR_per_kWh":0.015,"EXR":10.0,"time_start":"2025-09-05T02:00:00+02:00","time_end":"2025-09-05T03:00:00+02:00"}]"""; + ElpriserAPI.setMockResponseForDate(tomorrow, mockJsonTomorrow); Main.main(new String[]{"--zone", "SE4", "--date", "2025-09-04", "--charging", "8h"}); @@ -359,66 +388,63 @@ void chargingWindowSpansToNextDay_whenCheapestCrossesMidnight() { } @Test - public void testHourlyMinMaxPrices() { - List quarterHourPrices = new ArrayList<>(); - - // Simulate 96 prices: 24 hours, each with 4 quarter-hour prices - for (int i = 0; i < 96; i++) { - quarterHourPrices.add((double) (i % 24)); // repeating hourly pattern - } + void testHourlyMinMaxPrices_with96Entries() { + // --- ARRANGE --- + LocalDate today = LocalDate.of(2025, 9, 4); + StringBuilder jsonBuilder = new StringBuilder("["); - // Expected hourly averages - List hourlyAverages = new ArrayList<>(); - for (int i = 0; i < 24; i++) { - double sum = 0; - for (int j = 0; j < 4; j++) { - sum += quarterHourPrices.get(i * 4 + j); + for (int hour = 0; hour < 24; hour++) { + for (int quarter = 0; quarter < 4; quarter++) { + if (hour > 0 || quarter > 0) { + jsonBuilder.append(","); + } + double price = (hour * 0.1) + (quarter * 0.01) + 0.10; + String time_start = String.format("2025-09-04T%02d:%02d:00+02:00", hour, quarter * 15); + String time_end = String.format("2025-09-04T%02d:%02d:00+02:00", hour, (quarter + 1) * 15); + if (quarter == 3) { // Handle end of hour + time_end = String.format("2025-09-04T%02d:00:00+02:00", (hour + 1) % 24); + } + + jsonBuilder.append(String.format(Locale.US, + """ + {"SEK_per_kWh":%.4f,"EUR_per_kWh":0.01,"EXR":10.0,"time_start":"%s","time_end":"%s"}""", + price, time_start, time_end)); } - hourlyAverages.add(sum / 4.0); } + jsonBuilder.append("]"); + ElpriserAPI.setMockResponseForDate(today, jsonBuilder.toString()); - double expectedMin = Collections.min(hourlyAverages); - double expectedMax = Collections.max(hourlyAverages); + // --- ACT --- + Main.main(new String[]{"--zone", "SE3", "--date", "2025-09-04"}); - // Call your method under test - PriceRange result = PriceCalculator.calculateHourlyMinMax(quarterHourPrices); + // --- ASSERT --- + String output = bos.toString(); + assertThat(output).containsIgnoringCase("lägsta pris"); + assertThat(output).containsIgnoringCase("högsta pris"); + assertThat(output).containsIgnoringCase("medelpris"); - assertThat(result.getMin()).isCloseTo(expectedMin, within(0.001)); - assertThat(result.getMax()).isCloseTo(expectedMax, within(0.001)); + // Expected Min: Hour 0 -> avg(0.10, 0.11, 0.12, 0.13) = 0.115 SEK/kWh = 11,50 öre + // Expected Max: Hour 23 -> avg(2.40, 2.41, 2.42, 2.43) = 2.415 SEK/kWh = 241,50 öre + assertThat(output).contains("00-01"); // Cheapest hour + assertThat(output).contains("23-00"); // Most expensive hour + assertThat(output).contains(formatOre(0.115)); + assertThat(output).contains(formatOre(2.415)); + + // Calculate overall average for the day + double totalSum = 0; + for (int hour = 0; hour < 24; hour++) { + for (int quarter = 0; quarter < 4; quarter++) { + totalSum += (hour * 0.1) + (quarter * 0.01) + 0.10; + } + } + double expectedMean = totalSum / 96; + assertThat(output).contains("Medelpris: " + formatOre(expectedMean) + " öre"); } private String formatOre(double sekPerKWh) { double ore = sekPerKWh * 100.0; - DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.of("sv", "SE")); + DecimalFormatSymbols symbols = new DecimalFormatSymbols(new Locale("sv", "SE")); DecimalFormat df = new DecimalFormat("0.00", symbols); return df.format(ore); } -} -class PriceRange { - private final double min; - private final double max; - - public PriceRange(double min, double max) { - this.min = min; - this.max = max; - } - - public double getMin() { return min; } - public double getMax() { return max; } -} - -class PriceCalculator { - public static PriceRange calculateHourlyMinMax(List quarterHourPrices) { - List hourlyAverages = new ArrayList<>(); - for (int i = 0; i < 24; i++) { - double sum = 0; - for (int j = 0; j < 4; j++) { - sum += quarterHourPrices.get(i * 4 + j); - } - hourlyAverages.add(sum / 4.0); - } - double min = Collections.min(hourlyAverages); - double max = Collections.max(hourlyAverages); - return new PriceRange(min, max); - } } \ No newline at end of file