// config/ConfigValidator.kt
package com.complycube.reactnative.config

interface ConfigValidator {
    fun validate(config: Map<String, Any?>): ValidationResult<Unit>
}

class ComplyCubeConfigValidator : ConfigValidator {
      override fun validate(config: Map<String, Any?>): ValidationResult<Unit> {
        val clientId = config["clientID"] as? String
        if (clientId.isNullOrBlank()) {
            return ValidationResult.Error("Client ID is required", "clientID")
        }

        val clientToken = config["clientToken"] as? String
        if (clientToken.isNullOrBlank()) {
            return ValidationResult.Error("Client token is required", "clientToken")
        }

        val workflowId = config["workflowTemplateId"] as? String
        val stages = config["stages"] as? List<*>

        if (workflowId.isNullOrBlank() && (stages == null || stages.isEmpty())) {
            return ValidationResult.Error(
                "Either workflowTemplateId or stages must be provided",
                "workflowTemplateId|stages"
            )
        }

        return ValidationResult.Success(Unit)
    }
}