package repository

import (
	"fmt"
	"time"

	"devone.aplikasi.web.id/gitea/mario/go-ohif-proxy/internal/database"
)

// DBStudy represents a study from the database
type DBStudy struct {
	ID                    int       `db:"id"`
	Study_PatientID       string    `db:"Study_PatientID"`
	Study_IUID            string    `db:"Study_IUID"`
	Study_AccessionNumber string    `db:"Study_AccessionNumber"`
	StudyDate             time.Time `db:"StudyDate"`
	StudyCreatedAt        time.Time `db:"StudyCreatedAt"`
	StudyUpdatedAt        time.Time `db:"StudyUpdatedAt"`
}

// StudyRepository handles database operations related to studies
type StudyRepository struct {
	*Repository
}

// NewStudyRepository creates a new study repository
func NewStudyRepository() *StudyRepository {
	return &StudyRepository{
		Repository: NewRepository(),
	}
}

// GetPatientStudies retrieves all studies for a patient
func (r *StudyRepository) GetPatientStudies(patientID string) ([]string, []string, error) {
	var studies []DBStudy

	query := `SELECT * FROM study WHERE Study_PatientID = ?`
	err := database.DB.Select(&studies, query, patientID)

	if err != nil {
		return nil, nil, fmt.Errorf("database error getting patient studies: %w", err)
	}

	var studyUIDs []string
	var accessionNumbers []string

	for _, study := range studies {
		studyUIDs = append(studyUIDs, study.Study_IUID)
		if study.Study_AccessionNumber != "" {
			accessionNumbers = append(accessionNumbers, study.Study_AccessionNumber)
		}
	}

	return studyUIDs, accessionNumbers, nil
}

// GetStudyByUID retrieves a study by its UID
func (r *StudyRepository) GetStudyByUID(studyUID string) (*DBStudy, error) {
	var study DBStudy

	query := `SELECT * FROM study WHERE Study_IUID = ?`
	err := database.DB.Get(&study, query, studyUID)

	if err != nil {
		return nil, fmt.Errorf("database error getting study: %w", err)
	}

	return &study, nil
}