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 CreateTagGroup(ctx context.Context, tagGroupName models.TagGroupName, tagName models.TagName) (models.TagGroup, error) {
	ctx, span := tracer.Start(ctx, "CreateTagGroup")
	defer span.End()

	span.SetAttributes(
		attribute.String("tag_group_name", string(tagGroupName)),
		attribute.String("tag_name", string(tagName)),
	)

	span.AddEvent("Starting tag group creation")

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

	tagGroup := models.TagGroup{
		Name:  tagGroupName,
		TagID: tagName,
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_group_name": tagGroupName,
		"tag_name":       tagName,
	}).Debug("attempting to create tag group")

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

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

		loggerFields := log.Fields{
			"tag_group_name": tagGroupName,
			"tag_name":       tagName,
		}
		return models.TagGroup{}, utils.HandleError(ctx, span, logger, loggerFields, result.Error)
	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_group_name": tagGroupName,
		"tag_name":       tagName,
	}).Debug("tag group created")
	span.AddEvent("Tag group created successfully")
	return tagGroup, nil
}

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

	span.SetAttributes(
		attribute.Int64("batch_size", int64(batchSize)),
		attribute.Int64("tag_group_count", int64(len(tagsGroups))),
	)

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

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

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

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

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_groups_count": len(tagsGroups),
	}).Debug("attempting to create tags groups")

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

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

	}

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_group_count": len(tagsGroups),
	}).Debug("batch tags groups created")

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

func DeleteTagGroup(ctx context.Context, tagGroupName models.TagGroupName) error {
	ctx, span := tracer.Start(ctx, "DeleteTagGroup")
	defer span.End()

	span.SetAttributes(
		attribute.String("tag_group_name", string(tagGroupName)),
	)

	span.AddEvent("Starting tag group deletion")

	var tagGroup models.TagGroup

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

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

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_group_name": tagGroupName,
	}).Debug("attempting to delete tag group")

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

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

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

	logger.WithContext(ctx).WithFields(log.Fields{
		"tag_group_name": tagGroupName,
	}).Debug("tag group deleted")

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