/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 */

import { ArgumentParser } from "argparse";
import { join, resolve } from "path";
import "reflect-metadata";
import { createFile } from "../helpers/fileMethods";
import {
  getCentralDecoratedContainer,
  IFunctionOptions,
  stringifyWithFunctions,
} from "../index.browser";
import { listFunctions, listPackages } from "../index.nodejs";
import { IUiDefinition } from "../types/ui";

/**
 * Helper Function to write a default configuration.
 *
 * @export
 * @param {string} [dir='./modules']
 * @param {string} [filename=join(resolve(process.cwd()), 'config', 'assembly.json')]
 */
export async function writeUiFile(
  options: {
    dir: string;
    filename: string;
  } = {
    dir: "./modules",
    filename: join(resolve(process.cwd()), "config", "ui.json"),
  }
) {
  const uiFile: IUiDefinition = {
    functions: {},
    classes: {},
  };

  // This call makes shure, that every function is loaded
  const functions = await listFunctions(options.dir);
  const packages = await listPackages(options.dir);

  const CONTAINER = getCentralDecoratedContainer();

  // Determine all Packages
  for (const item of packages) {
    // Iterate over the classes.
    for (const cls of item.package.providedClasses) {
      const itemToAdd: IUiDefinition["classes"][0] = {
        // The Class Name
        class: cls.description.name,
        // The Package Name
        package: item.package.nameOfPackage,
        // The Path of he File.
        path: item.path,
        // The defined UI defintions.
        ui: cls.ui,
        // Define the Methods elements
        methods: {},
      };

      // The Service
      const services =
        CONTAINER.classes.get(cls.description.name)?._markedElements || [];

      for (const srv of services) {
        if (srv.type === "method" && (srv.options as IFunctionOptions).ui) {
          itemToAdd.methods[srv.accessor] = (
            srv.options as IFunctionOptions
          ).ui;
        }
      }

      if (
        itemToAdd.ui ||
        Object.getOwnPropertyNames(itemToAdd.methods).length > 0
      ) {
        // If an ui definition exists, we want
        // to export it and store it in our file.
        uiFile.classes[itemToAdd.class] = itemToAdd;
      }
    }

    // Iterate over the functions and provide their uis.
    item.package.providedFunctions.map((funcs) => {
      if (funcs.options.ui) {
        // Store the UI definition in the config file.
        uiFile.functions[funcs.options.id] = {
          id: funcs.options.id,
          ui: funcs.options.ui,
        };
      }
    });
  }

  for (const [id, data] of CONTAINER.methods.entries()) {
    if (data.options.ui) {
      uiFile.functions[id] = {
        id,
        ui: data.options.ui,
      };
    }
  }

  await createFile(options.filename, stringifyWithFunctions(uiFile, 4));
}

/**
 * Helper to extract the Arguments for the `writeUiFile` function @see writeUiFile
 *
 * @author M.Karkowski
 * @export
 * @param additionalArguments Arguments added by the nope.cli
 * @return {*} The Arguments
 */
export function readInwriteUiFileArgs(
  additionalArguments: {
    help: string;
    type: "string" | "number";
    name: string | string;
    defaultValue?: any;
  }[] = []
) {
  const parser = new ArgumentParser({
    // version: "1.0.0",
    add_help: true,
    description: "Command Line interface, determines the available Packages.",
  });

  for (const arg of additionalArguments) {
    parser.add_argument(arg.name, {
      help: arg.help,
      default: arg.defaultValue,
      type: arg.type,
    });
  }

  parser.add_argument("-f", "--file", {
    help: "Filename for the configuration.",
    default: "./config/ui.json",
    type: "str",
    dest: "filename",
  });

  parser.add_argument("-d", "--dir", {
    help: "Directory to search for the ui definitions",
    default: "./modules",
    type: "str",
    dest: "dir",
  });

  const args: {
    dir: string;
    filename: string;
  } = parser.parse_args();

  return args;
}