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154 changes: 154 additions & 0 deletions
154
firebase-firestore/src/commonMain/kotlin/dev/gitlive/firebase/firestore/Filter.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| package dev.gitlive.firebase.firestore | ||
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| sealed interface WhereConstraint { | ||
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| sealed interface ForNullableObject : WhereConstraint { | ||
| val value: Any? | ||
| val safeValue get() = value?.safeValue | ||
| } | ||
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| sealed interface ForObject : WhereConstraint { | ||
| val value: Any | ||
| val safeValue get() = value.safeValue | ||
| } | ||
| sealed interface ForArray : WhereConstraint { | ||
| val values: List<Any> | ||
| val safeValues get() = values.map { it.safeValue } | ||
| } | ||
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| data class EqualTo internal constructor(override val value: Any?) : ForNullableObject | ||
| data class NotEqualTo internal constructor(override val value: Any?) : ForNullableObject | ||
| data class LessThan internal constructor(override val value: Any) : ForObject | ||
| data class GreaterThan internal constructor(override val value: Any) : ForObject | ||
| data class LessThanOrEqualTo internal constructor(override val value: Any) : ForObject | ||
| data class GreaterThanOrEqualTo internal constructor(override val value: Any) : ForObject | ||
| data class ArrayContains internal constructor(override val value: Any) : ForObject | ||
| data class ArrayContainsAny internal constructor(override val values: List<Any>) : ForArray | ||
| data class InArray internal constructor(override val values: List<Any>) : ForArray | ||
| data class NotInArray internal constructor(override val values: List<Any>) : ForArray | ||
| } | ||
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| sealed class Filter { | ||
| data class And internal constructor(val filters: List<Filter>) : Filter() | ||
| data class Or internal constructor(val filters: List<Filter>) : Filter() | ||
| sealed class WithConstraint : Filter() { | ||
| abstract val constraint: WhereConstraint | ||
| } | ||
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| data class Field internal constructor(val field: String, override val constraint: WhereConstraint) : WithConstraint() | ||
| data class Path internal constructor(val path: FieldPath, override val constraint: WhereConstraint) : WithConstraint() | ||
| } | ||
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| class FilterBuilder internal constructor() { | ||
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| infix fun String.equalTo(value: Any?): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.EqualTo(value)) | ||
| } | ||
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| infix fun FieldPath.equalTo(value: Any?): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.EqualTo(value)) | ||
| } | ||
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| infix fun String.notEqualTo(value: Any?): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.NotEqualTo(value)) | ||
| } | ||
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| infix fun FieldPath.notEqualTo(value: Any?): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.NotEqualTo(value)) | ||
| } | ||
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| infix fun String.lessThan(value: Any): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.LessThan(value)) | ||
| } | ||
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| infix fun FieldPath.lessThan(value: Any): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.LessThan(value)) | ||
| } | ||
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| infix fun String.greaterThan(value: Any): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.GreaterThan(value)) | ||
| } | ||
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| infix fun FieldPath.greaterThan(value: Any): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.GreaterThan(value)) | ||
| } | ||
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| infix fun String.lessThanOrEqualTo(value: Any): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.LessThanOrEqualTo(value)) | ||
| } | ||
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| infix fun FieldPath.lessThanOrEqualTo(value: Any): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.LessThanOrEqualTo(value)) | ||
| } | ||
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| infix fun String.greaterThanOrEqualTo(value: Any): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.GreaterThanOrEqualTo(value)) | ||
| } | ||
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| infix fun FieldPath.greaterThanOrEqualTo(value: Any): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.GreaterThanOrEqualTo(value)) | ||
| } | ||
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| infix fun String.contains(value: Any): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.ArrayContains(value)) | ||
| } | ||
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| infix fun FieldPath.contains(value: Any): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.ArrayContains(value)) | ||
| } | ||
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| infix fun String.containsAny(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.ArrayContainsAny(values)) | ||
| } | ||
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| infix fun FieldPath.containsAny(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.ArrayContainsAny(values)) | ||
| } | ||
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| infix fun String.inArray(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.InArray(values)) | ||
| } | ||
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| infix fun FieldPath.inArray(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.InArray(values)) | ||
| } | ||
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| infix fun String.notInArray(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Field(this, WhereConstraint.NotInArray(values)) | ||
| } | ||
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| infix fun FieldPath.notInArray(values: List<Any>): Filter.WithConstraint { | ||
| return Filter.Path(this, WhereConstraint.NotInArray(values)) | ||
| } | ||
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| infix fun Filter.and(right: Filter): Filter.And { | ||
| val leftList = when (this) { | ||
| is Filter.And -> filters | ||
| else -> listOf(this) | ||
| } | ||
| val rightList = when (right) { | ||
| is Filter.And -> right.filters | ||
| else -> listOf(right) | ||
| } | ||
| return Filter.And(leftList + rightList) | ||
| } | ||
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| infix fun Filter.or(right: Filter): Filter.Or { | ||
| val leftList = when (this) { | ||
| is Filter.Or -> filters | ||
| else -> listOf(this) | ||
| } | ||
| val rightList = when (right) { | ||
| is Filter.Or -> right.filters | ||
| else -> listOf(right) | ||
| } | ||
| return Filter.Or(leftList + rightList) | ||
| } | ||
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| fun all(vararg filters: Filter): Filter? = filters.toList().combine { left, right -> left and right } | ||
| fun any(vararg filters: Filter): Filter? = filters.toList().combine { left, right -> left or right } | ||
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| private fun Collection<Filter>.combine(over: (Filter, Filter) -> Filter): Filter? = fold<Filter, Filter?>(null) { acc, filter -> | ||
| acc?.let { over(acc, filter) } ?: filter | ||
| } | ||
| } |
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