feat(core): per-collection cache/cors option (#50)

Collection.ts

@@ -2,14 +2,48 @@ import { Handler, Route } from './Handler.d.ts'
 import { ObjectSchema, Schema } from './validator/Validator.d.ts'
 
 export class Collection {
+ #cache: 
+ | false
+ | {
+ maxAge: number
+ }
+ | undefined
+
+ #cors:
+ | string
+ | undefined
+
  routes: [
  string,
  string,
  Route[]
  ][]
 
- constructor() {
+ constructor({
+ cache,
+ cors
+ }: {
+ /**
+ * Duration in seconds for how long a response should be cached.
+ * 
+ * @since v0.11
+ */
+ cache?:
+ | false
+ | {
+ maxAge: number
+ }
+ /**
+ * Enable Cross-Origin Resource Sharing (CORS) for this collection by setting a origin, e.g. `*`.
+ * 
+ * @since v0.11
+ */
+ cors?: string
+ } = {}) {
  this.routes = []
+
+ this.#cache = cache
+ this.#cors = cors
  }
 
  /* Get Method --------------------------------------------------------------- */
@@ -66,6 +100,14 @@ export class Collection {
  >
  )[]
  ) {
+ if ((this.#cache || this.#cors) && typeof handler[0] !== 'function') {
+ if (handler[0].cache === undefined && this.#cache !== undefined)
+ handler[0].cache = this.#cache
+
+ if (!handler[0].cors)
+ handler[0].cors = this.#cors
+ }
+
  this.routes.push([ 'GET', url, handler ])
 
  return this
@@ -129,6 +171,9 @@ export class Collection {
  >
  )[]
  ) {
+ if (this.#cors && typeof handler[0] !== 'function' && !handler[0].cors)
+ handler[0].cors = this.#cors
+
  this.routes.push([ 'DELETE', url, handler ])
 
  return this
@@ -192,6 +237,9 @@ export class Collection {
  >
  )[]
  ) {
+ if (this.#cors && typeof handler[0] !== 'function' && !handler[0].cors)
+ handler[0].cors = this.#cors
+
  this.routes.push([ 'POST', url, handler ])
 
  return this
@@ -255,6 +303,9 @@ export class Collection {
  >
  )[]
  ) {
+ if (this.#cors && typeof handler[0] !== 'function' && !handler[0].cors)
+ handler[0].cors = this.#cors
+
  this.routes.push([ 'PUT', url, handler ])
 
  return this
@@ -318,6 +369,9 @@ export class Collection {
  >
  )[]
  ) {
+ if (this.#cors && typeof handler[0] !== 'function' && !handler[0].cors)
+ handler[0].cors = this.#cors
+
  this.routes.push([ 'PATCH', url, handler ])
 
  return this
@@ -375,6 +429,9 @@ export class Collection {
  >
  )[]
  ) {
+ if (this.#cors && typeof handler[0] !== 'function' && !handler[0].cors)
+ handler[0].cors = this.#cors
+
  this.routes.push([ 'HEAD', url, handler ])
 
  return this