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import { ControllerClass } from "./controller-metadata.ts";import { Type } from "./deps.ts";import { MvFilter } from "./mv-filter.ts";
interface FilterRegistration {  filter: MvFilter | Type<MvFilter>;  priority?: number;}
export class FilterCatalog {  private static readonly globalCatalog: FilterRegistration[] = [];  private static readonly controllerCatalog = new Map<    Type,    {      registrations: FilterRegistration[];      actions: {        [action: string]: {          registrations: FilterRegistration[];        };      };    }  >();
  static registerGlobalFilter(    filter: Type<MvFilter> | MvFilter,    priority?: number,  ) {    this.globalCatalog.push({ filter, priority });  }
  static registerControllerFilter(    type: ControllerClass,    filter: Type<MvFilter> | MvFilter,    priority?: number,  ) {    this.getControllerRegistration(type).registrations.push({      filter,      priority,    });  }
  static registerActionFilter(    type: ControllerClass,    action: string,    filter: Type<MvFilter> | MvFilter,    priority?: number,  ) {    this.getActionRegistration(type, action).registrations.push({      filter,      priority,    });  }
  static getFilters(type: ControllerClass, action: string) {    const mergedFilters = [      ...this.globalCatalog,      ...(this.controllerCatalog.get(type)?.registrations ?? []),      ...(this.controllerCatalog.get(type)?.actions[action]?.registrations ??        []),    ];    const sortedFilters = mergedFilters      .sort((a, b) => (a.priority ?? 0) - (b.priority ?? 0))      .map((registration) => registration.filter);
    return sortedFilters;  }
  private static getControllerRegistration(type: ControllerClass) {    let registration = this.controllerCatalog.get(type);    if (!registration) {      registration = { actions: {}, registrations: [] };      this.controllerCatalog.set(type, registration);    }    return registration;  }
  private static getActionRegistration(type: ControllerClass, action: string) {    const controllerRegistration = this.getControllerRegistration(type);    let actionRegistration = controllerRegistration.actions[action];    if (!actionRegistration) {      actionRegistration = { registrations: [] };      controllerRegistration.actions[action] = actionRegistration;    }    return actionRegistration;  }}