package postgres

import (
	"context"
	"errors"
	errors2 "git.dragse.it/anthrove/otter-space-sdk/pkg/errors"
	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"

	log "github.com/sirupsen/logrus"
	"gorm.io/gorm"
)

// CreateSource creates a pgModels.Source
func CreateSource(ctx context.Context, db *gorm.DB, anthroveSource *models.Source) error {

	if anthroveSource.Domain == "" {
		return &errors2.EntityValidationFailed{Reason: "Domain is required"}
	}

	result := db.WithContext(ctx).Where(models.Source{Domain: anthroveSource.Domain}).FirstOrCreate(anthroveSource)

	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return &errors2.EntityAlreadyExists{}
		}
		return result.Error
	}

	if result.RowsAffected == 0 {
		return &errors2.NoDataWritten{}
	}

	log.WithFields(log.Fields{
		"node_source_url":         anthroveSource.Domain,
		"node_source_displayName": anthroveSource.DisplayName,
		"node_source_icon":        anthroveSource.Icon,
	}).Trace("database: created source node")

	return nil
}

// GetAllSource returns a list of all pgModels.Source
func GetAllSource(ctx context.Context, db *gorm.DB) ([]models.Source, error) {
	var sources []models.Source

	result := db.WithContext(ctx).Find(&sources)

	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return nil, &errors2.NoDataFound{}
		} // TODO  really...? i don't think this error handling should be here..? / not possible
		return nil, result.Error
	}

	log.WithFields(log.Fields{
		"tag_amount": result.RowsAffected,
	}).Trace("database: get all source nodes")

	return sources, nil
}

// GetSourceByDomain returns the first source it finds based on the domain
func GetSourceByDomain(ctx context.Context, db *gorm.DB, sourceDomain models.AnthroveSourceDomain) (*models.Source, error) {
	var sources models.Source

	if sourceDomain == "" {
		return nil, &errors2.EntityValidationFailed{Reason: "AnthroveSourceDomain is not set"}
	}

	result := db.WithContext(ctx).Where("domain = ?", sourceDomain).First(&sources)

	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return nil, &errors2.NoDataFound{}
		}
		return nil, result.Error
	}

	log.WithFields(log.Fields{
		"tag_amount": result.RowsAffected,
	}).Trace("database: get all source nodes")

	return &sources, nil
}