import { QueryRunner } from "../query-runner/QueryRunner"

/**
 * Performs logging of the events in TypeORM.
 */
export interface Logger {
    /**
     * Logs query and parameters used in it.
     */
    logQuery(query: string, parameters?: any[], queryRunner?: QueryRunner): any

    /**
     * Logs query that is failed.
     */
    logQueryError(
        error: string | Error,
        query: string,
        parameters?: any[],
        queryRunner?: QueryRunner,
    ): any

    /**
     * Logs query that is slow.
     */
    logQuerySlow(
        time: number,
        query: string,
        parameters?: any[],
        queryRunner?: QueryRunner,
    ): any

    /**
     * Logs events from the schema build process.
     */
    logSchemaBuild(message: string, queryRunner?: QueryRunner): any

    /**
     * Logs events from the migrations run process.
     */
    logMigration(message: string, queryRunner?: QueryRunner): any

    /**
     * Perform logging using given logger, or by default to the console.
     * Log has its own level and message.
     */
    log(
        level: "log" | "info" | "warn",
        message: any,
        queryRunner?: QueryRunner,
    ): any
}

/**
 * Log level.
 */
export type LogLevel =
    | "query"
    | "schema"
    | "error"
    | "warn"
    | "info"
    | "log"
    | "migration"

/**
 * Log message.
 */
export type LogMessage = {
    type?: LogMessageType
    prefix?: string
    message: string | number
    format?: LogMessageFormat
    parameters?: any[]
    additionalInfo?: Record<string, any>
}

/**
 * Log message format.
 */
export type LogMessageFormat = "sql"

/**
 * Log message type.
 */
export type LogMessageType =
    | "log"
    | "info"
    | "warn"
    | "error"
    | "query"
    | "query-error"
    | "query-slow"
    | "schema-build"
    | "migration"

/**
 * Options for prepare log messages
 */
export type PrepareLogMessagesOptions = {
    highlightSql: boolean
    appendParameterAsComment: boolean
    addColonToPrefix: boolean
}