package db

import (
	"context"
	"fmt"

	"github.com/jackc/pgx/v5/pgxpool"
)

func Connect(ctx context.Context, dbURL string) (*pgxpool.Pool, error) {
	pool, err := pgxpool.New(ctx, dbURL)
	if err != nil {
		return nil, fmt.Errorf("unable to connect to database: %w", err)
	}

	if err := pool.Ping(ctx); err != nil {
		pool.Close()
		return nil, fmt.Errorf("unable to ping database: %w", err)
	}

	return pool, nil
}

func Close(pool *pgxpool.Pool) {
	if pool != nil {
		pool.Close()
	}
}

type PostgresDbWrapper struct {
	db *pgxpool.Pool
}

func NewPostgresDbWrapper(db *pgxpool.Pool) DbWrapper {
	return &PostgresDbWrapper{db: db}
}

func (wrapper *PostgresDbWrapper) Exec(ctx context.Context, query string, args ...any) (DbWrapperResult, error) {
	result, err := wrapper.db.Exec(ctx, query, args...)
	if err != nil {
		return DbWrapperResult{}, err
	}

	return DbWrapperResult{
		AffectedRows: result.RowsAffected(),
	}, nil
}