package database

import (
	"context"
	"errors"

	"git.anthrove.art/Anthrove/otter-space-sdk/v2/internal/utils"
	otterError "git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/error"
	"git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/models"
	log "github.com/sirupsen/logrus"
	"go.opentelemetry.io/otel/attribute"
	"gorm.io/gorm"
)

func CreateTagAlias(ctx context.Context, tagAliasName models.TagAliasName, tagName models.TagName) (models.TagAlias, error) {
	ctx, span := tracer.Start(ctx, "CreateTagAlias")
	defer span.End()

	span.SetAttributes(
		attribute.String("tag_alias_name", string(tagAliasName)),
		attribute.String("tag_name", string(tagName)),
	)

	span.AddEvent("Starting tag alias creation")

	if client == nil {
		return models.TagAlias{}, utils.HandleError(ctx, span, logger, nil, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}

	tagAlias := models.TagAlias{
		Name:  tagAliasName,
		TagID: tagName,
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_alias_name": tagAliasName,
		"tag_name":       tagName,
	}).Debug("attempting to create tag alias")

	result := client.WithContext(ctx).Create(&tagAlias)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {

			loggerFields := log.Fields{
				"tag_alias_name": tagAliasName,
				"tag_name":       tagName,
			}
			return models.TagAlias{}, utils.HandleError(ctx, span, logger, loggerFields, &otterError.Database{Reason: otterError.DuplicateKey})
		}

		loggerFields := log.Fields{
			"tag_alias_name": tagAliasName,
			"tag_name":       tagName,
		}
		return models.TagAlias{}, utils.HandleError(ctx, span, logger, loggerFields, result.Error)
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_alias_name": tagAliasName,
		"tag_name":       tagName,
	}).Debug("tag alias created")
	span.AddEvent("Tag alias created successfully")
	return tagAlias, nil
}

func CreateTagAliasInBatch(ctx context.Context, tagsAliases []models.TagAlias, batchSize int) error {
	ctx, span := tracer.Start(ctx, "CreateTagAliasInBatch")
	defer span.End()

	span.SetAttributes(
		attribute.Int64("batch_size", int64(batchSize)),
		attribute.Int64("tag_aliases_count", int64(len(tagsAliases))),
	)

	span.AddEvent("Starting batch tag alias creation")

	if client == nil {
		return utils.HandleError(ctx, span, logger, nil, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}

	if tagsAliases == nil || len(tagsAliases) == 0 {
		return utils.HandleError(ctx, span, logger, nil, &otterError.EntityValidationFailed{Reason: otterError.TagAliasListIsEmpty})
	}

	if batchSize == 0 {
		return utils.HandleError(ctx, span, logger, nil, &otterError.EntityValidationFailed{Reason: otterError.BatchSizeIsEmpty})
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_aliases_count": len(tagsAliases),
	}).Debug("attempting to create tags aliases")

	result := client.WithContext(ctx).CreateInBatches(&tagsAliases, batchSize)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			loggerFields := log.Fields{
				"tag_aliases_count": len(tagsAliases),
			}
			return utils.HandleError(ctx, span, logger, loggerFields, &otterError.Database{Reason: otterError.DuplicateKey})
		}

		loggerFields := log.Fields{
			"tag_aliases_count": len(tagsAliases),
		}
		return utils.HandleError(ctx, span, logger, loggerFields, result.Error)
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_aliases_count": len(tagsAliases),
	}).Debug("batch tags aliases created")

	span.AddEvent("Batch tags aliases created successfully")
	return nil
}

func DeleteTagAlias(ctx context.Context, tagAliasName models.TagAliasName) error {
	ctx, span := tracer.Start(ctx, "DeleteTagAlias")
	defer span.End()

	span.SetAttributes(
		attribute.String("tag_alias_name", string(tagAliasName)),
	)

	span.AddEvent("Starting tag alias deletion")

	var tagAlias models.TagAlias

	if client == nil {
		return utils.HandleError(ctx, span, logger, nil, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}

	if len(tagAliasName) == 0 {
		return utils.HandleError(ctx, span, logger, nil, &otterError.Database{Reason: otterError.TagAliasNameIsEmpty})
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_alias_name": tagAliasName,
	}).Debug("attempting to delete tag alias")

	result := client.WithContext(ctx).Delete(&tagAlias, tagAliasName)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {

			loggerFields := log.Fields{
				"tag_alias_name": tagAliasName,
			}
			return utils.HandleError(ctx, span, logger, loggerFields, &otterError.Database{Reason: otterError.NoDataFound})
		}

		loggerFields := log.Fields{
			"tag_alias_name": tagAliasName,
		}
		return utils.HandleError(ctx, span, logger, loggerFields, result.Error)
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_alias_name": tagAliasName,
	}).Debug("tag alias deleted")

	span.AddEvent("Tag alias deleted successfully")
	return nil
}