tech.codingzen.kdi.dsl.builder.kdi_app.KdiAppSpecBuilders.kt Maven / Gradle / Ivy

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0 dependency kotlin dependency injection

There is a newer version: 2.1.0

package tech.codingzen.kdi.dsl.builder.kdi_app

import tech.codingzen.kdi.KdiException
import tech.codingzen.kdi.ScopeExtender
import tech.codingzen.kdi.ScopeId
import tech.codingzen.kdi.data_structure.*
import tech.codingzen.kdi.dsl.ScopeExtensionDsl
import tech.codingzen.kdi.logging.Logger
import tech.codingzen.kdi.spec.MultipleSpec
import tech.codingzen.kdi.spec.ScopeSpec

object KdiAppSpecBuilders {
  class LoggerStep(private val name: String) {
    fun logger(logger: Logger) = ScopeExtenderStep(name, logger)
    fun printLogger(level: Logger.Level = Logger.Level.INFO) = logger(Logger.printLogger(level))
    fun noLogger() = logger(Logger.nothingLogger)
  }

  class ScopeExtenderStep(private val name: String, private val logger: Logger) {
    fun noScopeExtensions() = scopeExtensions { }

    fun scopeExtensions(block: ScopeExtensionDsl.() -> Unit): ScopeStep =
      ScopeStep(name, logger, ScopeExtensionDsl().apply(block).extensionMap)
  }

  class ScopeStep(
    private val name: String,
    private val logger: Logger,
    private val scopeExtenders: Map>>
  ) {
    fun spec(spec: ScopeSpec) = FinalStep(name, logger, scopeExtenders, spec)

    fun specs(vararg specs: ScopeSpec) =
      when {
        specs.isEmpty() -> throw KdiException("You must provide at least one ScopeSpec to specs()")
        specs.size == 1 -> spec(specs.last())
        else -> spec(MultipleSpec(specs.toList()))
      }
  }

  class FinalStep(
    private val name: String,
    private val logger: Logger,
    private val scopeExtenders: Map>>,
    private val scopeSpec: ScopeSpec
  ) {
    suspend fun  execute(executor: ScopeExecutor): T {
      val extensions = KdiExtensions(scopeExtenders)
      val kdi = Kdi(extensions, logger, ScopesList.nil)
      return kdi.execute(scopeSpec, executor)
    }
  }
}