io.specmatic.core.pattern.NegativePatternsTemplate.kt Maven / Gradle / Ivy

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Turn your contracts into executable specifications. Contract Driven Development - Collaboratively Design & Independently Deploy MicroServices & MicroFrontends.

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package io.specmatic.core.pattern

import io.specmatic.core.Resolver
import io.specmatic.core.pattern.config.NegativePatternConfiguration

abstract class NegativePatternsTemplate {
    fun negativeBasedOn(
        patternMap: Map,
        row: Row,
        resolver: Resolver,
        config: NegativePatternConfiguration = NegativePatternConfiguration()
    ): Sequence>> {
        val eachKeyMappedToPatternMap: Map> = patternMap.mapValues { patternMap }
        val negativePatternsForEachKey: Map>> =
            getNegativePatterns(patternMap, resolver, row, config)

        val modifiedPatternMap: Map>>?> =
            eachKeyMappedToPatternMap.mapValues { (keyToNegate, patterns) ->
                val negativePatterns: Sequence> = negativePatternsForEachKey.getValue(keyToNegate)

                if(!negativePatterns.any())
                    return@mapValues null

                patterns.mapValues { (key, pattern) ->
                    when (key) {
                        keyToNegate -> {
                            val result: Sequence> = negativePatterns
                            result
                        }
                        else -> newPatternsBasedOn(row, key, pattern, resolver)
                    }.map {
                        it.breadCrumb(withoutOptionality(key))
                    }
                }
            }

        if (modifiedPatternMap.values.isEmpty())
            return sequenceOf(HasValue(emptyMap()))

        return modifiedPatternMap.values.asSequence().filterNotNull().flatMap {
            patternList(it)
        }

    }

    abstract fun getNegativePatterns(
        patternMap: Map,
        resolver: Resolver,
        row: Row,
        config: NegativePatternConfiguration = NegativePatternConfiguration()
    ): Map>>

}