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import { templates } from "./containers.ts";import { copyProps, XMLEscape } from "./utils.ts";import EtaErr from "./err.ts";
/* TYPES */
import { TemplateFunction } from "./compile.ts";import { Cacher } from "./storage.ts";
type trimConfig = "nl" | "slurp" | false;
export interface EtaConfig {  /** Name of the data object. Default `it` */  varName: string;  /** Configure automatic whitespace trimming. Default `[false, 'nl']` */  autoTrim: trimConfig | [trimConfig, trimConfig];  /** Remove all safe-to-remove whitespace */  rmWhitespace: boolean;  /** Whether or not to automatically XML-escape interpolations. Default true */  autoEscape: boolean;  /** Delimiters: by default `['<%', '%>']` */  tags: [string, string];  /** Parsing options */  parse: {    /** Which prefix to use for interpolation. Default `"="` */    interpolate: string;    /** Which prefix to use for raw interpolation. Default `"~"` */    raw: string;    /** Which prefix to use for evaluation. Default `""` */    exec: string;  };  /** XML-escaping function */  e: (str: string) => string;  plugins: Array<{ processFnString?: Function; processAST?: Function }>;  /** Compile to async function */  async: boolean;  /** Holds template cache */  templates: Cacher<TemplateFunction>;  /** Whether or not to cache templates if `name` or `filename` is passed */  cache: boolean;  /** Directories that contain templates */  views?: string | Array<string>;  /** Where should absolute paths begin? Default '/' */  root?: string;  /** Absolute path to template file */  filename?: string;  /** Name of template file */  name?: string;  /** Whether or not to cache templates if `name` or `filename` is passed */  "view cache"?: boolean;  /** Make data available on the global object instead of varName */  useWith?: boolean;  [index: string]: any; // eslint-disable-line @typescript-eslint/no-explicit-any}
export interface EtaConfigWithFilename extends EtaConfig {  filename: string;}
export type PartialConfig = Partial<EtaConfig>;
/* END TYPES */
/** * Include a template based on its name (or filepath, if it's already been cached). * * Called like `E.include(templateNameOrPath, data)` */
function includeHelper(  this: EtaConfig,  templateNameOrPath: string,  data: object,): string {  var template = this.templates.get(templateNameOrPath);  if (!template) {    throw EtaErr('Could not fetch template "' + templateNameOrPath + '"');  }  return template(data, this);}
/** Eta's base (global) configuration */var config: EtaConfig = {  varName: "it",  autoTrim: [false, "nl"],  rmWhitespace: false,  autoEscape: true,  tags: ["<%", "%>"],  parse: {    interpolate: "=",    raw: "~",    exec: "",  },  async: false,  templates: templates,  cache: false,  plugins: [],  useWith: false,  e: XMLEscape,  include: includeHelper,};
includeHelper.bind(config);
/** * Takes one or two partial (not necessarily complete) configuration objects, merges them 1 layer deep into eta.config, and returns the result * * @param override Partial configuration object * @param baseConfig Partial configuration object to merge before `override` * * **Example** * * ```js * let customConfig = getConfig({tags: ['!#', '#!']}) * ``` */
function getConfig(override: PartialConfig, baseConfig?: EtaConfig): EtaConfig {  // TODO: run more tests on this
  var res: PartialConfig = {}; // Linked  copyProps(res, config); // Creates deep clone of eta.config, 1 layer deep
  if (baseConfig) {    copyProps(res, baseConfig);  }
  if (override) {    copyProps(res, override);  }
  return res as EtaConfig;}
/** Update Eta's base config */
function configure(options: PartialConfig) {  return copyProps(config, options);}
export { config, getConfig, configure };