import { Dispatch } from "./Dispatch";
import { ILogItem } from "./ILogItem";
import { LogLevel } from "./LogLevel";

export class FormattedDispatch extends Dispatch {
  private formatString: string = "%t %l <%o>: %m";

  format(item: ILogItem): string {
    return this.formatString
      .replace("%t", item.timestamp.toISOString())
      .replace("%l", LogLevel[item.level])
      .replace("%o", item.origin || "")
      .replace(
        "%m",
        item.data
          .map((item: any) => {
            switch (typeof item) {
              case "string":
              case "number":
                return item;
              case "object":
                return JSON.stringify(item);
              default:
                return item;
            }
          })
          .join(" "),
      );
  }

  process(item: ILogItem): void {
    super.process({
      ...item,
      data: this.format(item),
    });
  }
}