package database

import (
	"context"

	"certmanager/internal/descriptor"

	_ "github.com/mattn/go-sqlite3"
)

//type Grant struct {
//ID        int64  `json:"id"         yaml:"id"         db:"id"`
//AccountID int64  `json:"accountID"  yaml:"accountID"  db:"account_id"`
//Operation string `json:"operation"  yaml:"operation"  db:"operation"`
//SubjectID int64  `json:"subjectID"  yaml:"subjectID"  db:"subjectID"`
//}

func (db *Database) InsertGrant(ctx context.Context, grant *descriptor.Grant) error {
	var err error
	request := `INSERT INTO grant(id, account_id, operation, subject_id)
                        VALUES ($1, $2, $3, $4)`
	_, err = db.db.Exec(request, grant.ID, grant.AccountID, grant.Operation,
		grant.SubjectID)
	if err != nil {
		return err
	}
	return err
}

func (db *Database) ListGrantsByAccountID(ctx context.Context, accountID int64) ([]descriptor.Grant, error) {
	var err error
	request := `SELECT * FROM grant WHERE `
	res := make([]descriptor.Grant, 0)
	err = db.db.Select(&res, request, accountID)
	if err != nil {
		return res, err
	}
	return res, err
}

func (db *Database) GetGrant(ctx context.Context, accountID, subjectID int64) (bool, []*descriptor.Grant, error) {
	var err error
	var res []*descriptor.Grant
	var exists bool
	request := `SELECT id, operation, grant_id, subject_id FROM grant
                 WHERE account_id = $1
                 AND subject_id = $1`
	dbRes := make([]*descriptor.Grant, 0)
	err = db.db.Select(&dbRes, request, accountID, subjectID)
	if err != nil {
		return exists, res, err
	}
	if len(dbRes) == 0 {
		return false, res, err
	}
	exists = true
	res = dbRes
	return exists, res, err
}

func (db *Database) DeleteGrantByAccountID(ctx context.Context, grantID int64) error {
	var err error
	request := `DELETE FROM grant WHERE grant_id = $1`
	_, err = db.db.Exec(request, grantID)
	if err != nil {
		return err
	}
	return err
}

func (db *Database) DeleteGrantsBySubjectID(ctx context.Context, subjectID int64) error {
	var err error
	request := `DELETE FROM grant WHERE subject_id = $1`
	_, err = db.db.Exec(request, subjectID)
	if err != nil {
		return err
	}
	return err
}