package database

import (
	"context"
	"fmt"
	"strings"

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

// Migrate applies the idempotent local MVP schema. Production migration tooling
// can execute the same reviewed SQL from migrations/.
func Migrate(ctx context.Context, pool *pgxpool.Pool, migration string) error {
	for statement := range strings.SplitSeq(migration, "-- statement-break") {
		if strings.TrimSpace(statement) == "" {
			continue
		}
		if _, err := pool.Exec(ctx, statement); err != nil {
			return fmt.Errorf("applying migration: %w", err)
		}
	}
	return nil
}