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 CreateUserSource(ctx context.Context, userSource models.UserSource) (models.UserSource, error) {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "CreateUserSource")
	defer span.End()

	utils.HandleEvent(span, localLogger, "Starting user source creation")

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

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

	localLogger = localLogger.WithFields(log.Fields{
		"user_source_id": userSource.ID,
	})

	span.SetAttributes(
		attribute.String("user_source_id", string(userSource.SourceID)),
	)

	utils.HandleEvent(span, localLogger, "User source created successfully")
	return userSource, nil
}

// UpdateUserSource updates the user source information in the database.
// Only a few parameter can be updated:
//   - AccountID
//   - ScrapeTimeInterval
//   - AccountUsername
//   - LastScrapeTime
//   - AccountValidate
func UpdateUserSource(ctx context.Context, userSource models.UserSource) error {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "UpdateUserSource")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"user_source_id": userSource.ID,
	})

	span.SetAttributes(
		attribute.String("user_source_id", string(userSource.ID)),
	)

	utils.HandleEvent(span, localLogger, "Starting user source update")

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

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

	updatedUserSource := models.UserSource{
		BaseModel: models.BaseModel[models.UserSourceID]{
			ID: userSource.ID,
		},
		ScrapeTimeInterval: userSource.ScrapeTimeInterval,
		AccountUsername:    userSource.AccountUsername,
		AccountID:          userSource.AccountID,
		LastScrapeTime:     userSource.LastScrapeTime,
		AccountValidate:    userSource.AccountValidate,
	}

	result := client.WithContext(ctx).Updates(&updatedUserSource)
	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, "User source updated successfully")
	return nil
}

func GetUserSourceByID(ctx context.Context, id models.UserSourceID) (models.UserSource, error) {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "GetUserSourceByID")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"user_source_id": id,
	})

	span.SetAttributes(
		attribute.String("user_source_id", string(id)),
	)

	utils.HandleEvent(span, localLogger, "Starting get user source by ID")

	var user models.UserSource

	if client == nil {
		return models.UserSource{}, utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}
	if len(id) == 0 {
		return models.UserSource{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIDIsEmpty})
	}

	if len(id) != 25 {
		return models.UserSource{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIDToShort})
	}

	result := client.WithContext(ctx).First(&user, "id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return models.UserSource{}, utils.HandleError(ctx, span, localLogger, otterError.Database{Reason: otterError.NoDataFound})
		}
		return models.UserSource{}, utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "User source retrieved successfully")
	return user, nil
}

func DeleteUserSource(ctx context.Context, id models.UserSourceID) error {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "DeleteUserSource")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"user_source_id": id,
	})

	span.SetAttributes(
		attribute.String("user_source_id", string(id)),
	)

	utils.HandleEvent(span, localLogger, "Starting delete user source")

	var user models.UserSource

	if client == nil {
		return utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}
	if len(id) == 0 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIDIsEmpty})
	}

	if len(id) != 25 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIDToShort})
	}

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

	utils.HandleEvent(span, localLogger, "User source deleted successfully")
	return nil
}