package database

import (
	"context"
	"errors"

	"git.anthrove.art/Anthrove/otter-space-sdk/v4/internal/utils"
	otterError "git.anthrove.art/Anthrove/otter-space-sdk/v4/pkg/error"
	"git.anthrove.art/Anthrove/otter-space-sdk/v4/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, localLogger := utils.SetupTracing(ctx, tracer, "CreateTagGroup")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"tag_group_name": tagGroupName,
		"tag_name":       tagName,
	})

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

	utils.HandleEvent(span, localLogger, "Starting tag group creation")

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

	if tagGroupName == "" {
		return models.TagGroup{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.TagGroupNameIsEmpty})
	}

	if tagName == "" {
		return models.TagGroup{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.TagNameIsEmpty})
	}

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

	result := client.WithContext(ctx).Create(&tagGroup)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return models.TagGroup{}, utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.DuplicateKey})
		}
		return models.TagGroup{}, utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "Tag group created successfully")
	return tagGroup, nil
}

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

	localLogger = localLogger.WithFields(log.Fields{
		"tag_groups_count": len(tagsGroups),
		"batch_size":       batchSize,
	})

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

	utils.HandleEvent(span, localLogger, "Starting batch tag group creation")

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

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

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

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

		}
		return utils.HandleError(ctx, span, localLogger, result.Error)

	}

	utils.HandleEvent(span, localLogger, "Tag group created successfully")
	return nil
}

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

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

	localLogger = localLogger.WithFields(log.Fields{
		"tag_group_name": tagGroupName,
	})

	utils.HandleEvent(span, localLogger, "Starting tag group deletion")

	var tagGroup models.TagGroup

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

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

	result := client.WithContext(ctx).Delete(&tagGroup, tagGroupName)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.NoDataFound})
		}
		return utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "Tag group deleted successfully")
	return nil
}