package db

import (
	"fmt"

	"github.com/jmoiron/sqlx"
	_ "github.com/lib/pq"
	_ "github.com/mattn/go-sqlite3"
	"github.com/rs/zerolog/log"
	"nickiel.net/recount_server/types"
)

var DB_TYPE string;
var DB_SCHEMA string;
var DB_CONNECTION_STRING string;

func SetConstants(db_type string, db_schema string, db_conn_string string) {
    DB_TYPE = db_type;
    DB_SCHEMA = db_schema;
    DB_CONNECTION_STRING = db_conn_string;
}

func GetTransactions(transactions *[]types.Transaction, resultCount int, pageNum int) error {
	db, err := sqlx.Connect(DB_TYPE, DB_CONNECTION_STRING)
	if err != nil {
		log.Fatal().
			Err(err).
			Msg("Fatal error in db_get_transactions\nCannot connect to server")
	}

	defer db.Close()

	err = db.Select(transactions,
		"SELECT trns_id, trns_amount, trns_description, "+
			"trns_account, trns_bucket, trns_date "+
			fmt.Sprintf("FROM %stransactions ORDER BY trns_id DESC ", DB_SCHEMA)+
			fmt.Sprintf("LIMIT %d OFFSET %d",
				resultCount, pageNum*resultCount))
	if err != nil {
		return err
	}
	return nil
}

func NewTransaction(transaction types.Transaction) error {
	db, err := sqlx.Connect(DB_TYPE, DB_CONNECTION_STRING)
	if err != nil {
		log.Fatal().
			Err(err).
			Msg("Fatal error in db_get_transactions\nCannot connect to server")
	}

	defer db.Close()

	log.Debug().Msgf("%#v", transaction)

	_, err = db.NamedExec(
		fmt.Sprintf("INSERT INTO %stransactions", DB_SCHEMA)+
			"(trns_amount, trns_description, trns_account, trns_bucket, trns_date)"+
			"VALUES (:trns_amount, :trns_description, :trns_account, :trns_bucket, :trns_date)",
		transaction)
	if err != nil {
		log.Fatal().
			Err(err).
			Msg("Could not exec insert db query")
	}
	return nil
}

func GetTransPaneEntries(userID int) ([]types.QuickTransactionTypes, error) {
    transaction_types := make([]types.QuickTransactionTypes, 1);

    transaction_types[0] = types.QuickTransactionTypes {
        DisplayName: "Manual",
    };

    return transaction_types, nil;
}