package migrations

import (
	"crypto/md5"
	"crypto/rand"
	"crypto/sha1"
	"database/sql"
	"errors"
	"fmt"
	"time"

	"github.com/pressly/goose"
	log "github.com/sirupsen/logrus"
)

func init() {
	goose.AddMigration(Up20201214193523, Down20201214193523)
}

func Up20201214193523(tx *sql.Tx) error {
	// This code is executed when the migration is applied.
	var row *sql.Row
	row = tx.QueryRow("SELECT COUNT(*) FROM users WHERE admin=1")
	var data int
	if err := row.Scan(&data); err != nil {
		return err
	}
	log.Infof("%d admins found\n", data)

	if data == 0 {
		location, err := time.LoadLocation("Europe/Berlin")
		if err != nil {
			return err
		}
		dob, err := time.ParseInLocation(
			"2006-01-02",
			"1977-08-08",
			location,
		)
		if err != nil {
			return err
		}
		row = tx.QueryRow("SELECT id FROM countries WHERE name='Germany'")
		var ccid int
		if err := row.Scan(&ccid); err != nil {
			return err
		}

		regid := 0
		locid := 0

		random64Bytes := make([]byte, 64)
		_, err = rand.Read(random64Bytes)
		if err != nil {
			return err
		}

		result, err := tx.Exec(`INSERT INTO users (email, password, fname, mname,
				   lname, suffix, dob, verified, ccid,
				   regid, locid, listme, codesign, 1024bit, contactinfo, admin, orgadmin,
				   ttpadmin, adadmin, board, tverify, locadmin, language,
				   Q1, Q2, Q3, Q4, Q5,
				   A1, A2, A3, A4, A5,
				   created, modified, deleted, locked, uniqueID, otphash,
				   otppin, assurer, assurer_blocked, lastLoginAttempt)
VALUES (?, ?, ?, ?, ?, ?, ?, 0, ?, ?, ?, 0, 1, 0, ?, 1, 0, 0, 0, 0, 0, 0, ?, '', '', '', '', '', '', '', '', '', '', ?,
		?, NULL, 0, SHA1(CONCAT(NOW(), ?)), '', 0, 0, 0, NULL)`,
			"jandd@cacert.org",
			fmt.Sprintf("%x", sha1.Sum([]byte("abcdefghijklmn")),
				"Jan", "", "Dittberner", "", dob, ccid, regid, locid, "Somewhere over the rainbow",
				time.Now(), time.Now(), fmt.Sprintf("%x", md5.Sum(random64Bytes))))
		if err != nil {
			return err
		}
		lastId, err := result.LastInsertId()
		if err != nil {
			return err
		}
		log.Infof("new user id is %d", lastId)
	}

	return errors.New("TODO: implement")
}

func Down20201214193523(tx *sql.Tx) error {
	// This code is executed when the migration is rolled back.
	return nil
}