package com.airlock.iam.base.infrastructure.validation;

import jakarta.validation.Constraint;
import jakarta.validation.Payload;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Repeatable;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER, ElementType.TYPE_USE})
@Retention(RetentionPolicy.RUNTIME)
@Repeatable(PatternOptionalString.List.class)
@Documented
@Constraint(validatedBy = PatternOptionalStringValidator.class)
public @interface PatternOptionalString {
   String regexp();

   PatternOptionalString.Flag[] flags() default {};

   String message() default "{jakarta.validation.constraints.Pattern.message}";

   Class<?>[] groups() default {};

   Class<? extends Payload>[] payload() default {};

   enum Flag {
      UNIX_LINES(1),
      CASE_INSENSITIVE(2),
      COMMENTS(4),
      MULTILINE(8),
      DOTALL(32),
      UNICODE_CASE(64),
      CANON_EQ(128);

      private final int value;

      Flag(int value) {
         this.value = value;
      }

      public int getValue() {
         return this.value;
      }
   }

   @Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER, ElementType.TYPE_USE})
   @Retention(RetentionPolicy.RUNTIME)
   @Documented
   @interface List {
      PatternOptionalString[] value();
   }
}