package dbxshared

import "fmt"

type Logger interface {
	InitLogger()
}

type dialectString interface {
	String() string
}

var loggerRegistry = make(map[string]Logger)

// RegisterLogger allows dialect-specific loggers to be registered.
func RegisterLogger(dialect dialectString, logger Logger) {
	dialectStr := dialect.String()
	if _, exists := loggerRegistry[dialectStr]; exists {
		panic("Logger for dialect already registered: " + dialectStr)
	}
	loggerRegistry[dialectStr] = logger
}

// InitLogger initializes the logger for a specific dialect.
func InitLogger(dialect dialectString) error {
	dialectStr := dialect.String()
	logger, exists := loggerRegistry[dialectStr]
	if !exists {
		return fmt.Errorf("no logger registered for dialect %q: blank-import dbxm (MySQL) or dbxp (Postgres)", dialectStr)
	}
	logger.InitLogger()
	return nil
}

// ResetLoggerRegistry clears registered loggers. It is intended for tests only.
func ResetLoggerRegistry() {
	loggerRegistry = make(map[string]Logger)
}