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| 1 | +package it.aboutbits.springboot.testing.testdata; |
| 2 | + |
| 3 | +import it.aboutbits.springboot.toolbox.type.ScaledBigDecimal; |
| 4 | +import it.aboutbits.springboot.toolbox.type.identity.EntityId; |
| 5 | +import net.datafaker.Faker; |
| 6 | +import net.datafaker.service.FakeValuesService; |
| 7 | +import net.datafaker.service.FakerContext; |
| 8 | +import net.datafaker.service.RandomService; |
| 9 | +import org.jspecify.annotations.NullMarked; |
| 10 | + |
| 11 | +import java.util.Locale; |
| 12 | +import java.util.Random; |
| 13 | +import java.util.function.Function; |
| 14 | +import java.util.function.LongFunction; |
| 15 | + |
| 16 | +@NullMarked |
| 17 | +public class FakerExtended extends Faker { |
| 18 | + public FakerExtended() { |
| 19 | + super(); |
| 20 | + } |
| 21 | + |
| 22 | + public FakerExtended(Locale locale) { |
| 23 | + super(locale); |
| 24 | + } |
| 25 | + |
| 26 | + public FakerExtended(Random random) { |
| 27 | + super(random); |
| 28 | + } |
| 29 | + |
| 30 | + public FakerExtended(Locale locale, Random random) { |
| 31 | + super(locale, random); |
| 32 | + } |
| 33 | + |
| 34 | + public FakerExtended(Locale locale, RandomService randomService) { |
| 35 | + super(locale, randomService); |
| 36 | + } |
| 37 | + |
| 38 | + public FakerExtended(FakeValuesService fakeValuesService, FakerContext context) { |
| 39 | + super(fakeValuesService, context); |
| 40 | + } |
| 41 | + |
| 42 | + public <T extends Enum<?>> T randomEnumValue(Class<T> enumClass) { |
| 43 | + var values = enumClass.getEnumConstants(); |
| 44 | + if (values.length == 0) { |
| 45 | + throw new IllegalArgumentException("Enum class must have at least one value"); |
| 46 | + } |
| 47 | + return values[this.random().nextInt(values.length)]; |
| 48 | + } |
| 49 | + |
| 50 | + public <T extends EntityId<Long>> T randomEntityId(LongFunction<T> constructor) { |
| 51 | + return constructor.apply( |
| 52 | + super.random().nextInt(9999999) |
| 53 | + ); |
| 54 | + } |
| 55 | + |
| 56 | + public <T extends EntityId<String>> T randomEntityId(Function<String, T> constructor) { |
| 57 | + return constructor.apply( |
| 58 | + super.internet().uuid() |
| 59 | + ); |
| 60 | + } |
| 61 | + |
| 62 | + public String unique(String value) { |
| 63 | + return value + "_" + super.random().nextInt(9999999); |
| 64 | + } |
| 65 | + |
| 66 | + public RandomNumericRange numericRange() { |
| 67 | + return new RandomNumericRange( |
| 68 | + super.getFaker() |
| 69 | + ); |
| 70 | + } |
| 71 | + |
| 72 | + public static final class RandomNumericRange { |
| 73 | + private final Faker parent; |
| 74 | + |
| 75 | + private RandomNumericRange(Faker parent) { |
| 76 | + this.parent = parent; |
| 77 | + } |
| 78 | + |
| 79 | + public NumericRange random() { |
| 80 | + return random(-999999999, 999999999); |
| 81 | + } |
| 82 | + |
| 83 | + public NumericRange positive() { |
| 84 | + return random(1, 999999999); |
| 85 | + } |
| 86 | + |
| 87 | + public NumericRange positiveOrZero() { |
| 88 | + return random(0, 999999999); |
| 89 | + } |
| 90 | + |
| 91 | + public NumericRange negative() { |
| 92 | + return random(-999999999, -1); |
| 93 | + } |
| 94 | + |
| 95 | + public NumericRange negativeOrZero() { |
| 96 | + return random(-999999999, 0); |
| 97 | + } |
| 98 | + |
| 99 | + public NumericRange random(double min, double max) { |
| 100 | + var lower = parent.random().nextDouble(min, max - 1); |
| 101 | + var upper = parent.random().nextDouble(lower, max); |
| 102 | + |
| 103 | + return new NumericRange( |
| 104 | + ScaledBigDecimal.valueOf(lower), |
| 105 | + ScaledBigDecimal.valueOf(upper) |
| 106 | + ); |
| 107 | + } |
| 108 | + |
| 109 | + public record NumericRange(ScaledBigDecimal lower, ScaledBigDecimal upper) { |
| 110 | + |
| 111 | + } |
| 112 | + } |
| 113 | +} |
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