commit 6983443f63334697fa640693f8be724c4d5a61b1
Author: TheoryOfNekomata <allan.crisostomo@outlook.com>
Date:   Mon Nov 30 11:59:21 2020 +0800

    Separate project
    
    Extract project from monorepo.

diff --git a/.npmignore b/.npmignore
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index 0000000..bf193c2
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,2 @@
+*.ts
+tsconfig.json
diff --git a/README.md b/README.md
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index 0000000..f6ba95d
--- /dev/null
+++ b/README.md
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+# Zeichen - Remote Storage Plugin
+
+Save and load notes in Zeichen using an external API.
diff --git a/package.json b/package.json
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--- /dev/null
+++ b/package.json
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+{
+  "name": "zeichen-plugin-remote-storage",
+  "author": "TheoryOfNekomata <allan.crisostomo@outlook.com>",
+  "version": "0.1.0",
+  "description": "Save and load notes in Zeichen using an external API.",
+  "keywords": [
+    "zeichen",
+    "plugin",
+    "storage",
+    "API"
+  ],
+  "devDependencies": {
+    "typescript": "^4.0.3"
+  },
+  "scripts": {
+    "build": "tsc **/*.ts"
+  }
+}
diff --git a/src/Engine.ts b/src/Engine.ts
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index 0000000..c094f9e
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+++ b/src/Engine.ts
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+import { Deserializer, Serializer } from '../../core/src/storage'
+
+const CREATED = 201
+const NO_CONTENT = 204
+const NOT_FOUND = 404
+const GONE = 410
+
+export default class RemoteStorage<U, T> {
+  constructor(
+    private readonly baseUrl: string,
+    private readonly getItemId = item => item['id'],
+    private readonly serializers: Map<string, Serializer> = new Map([
+      ['*/*', JSON.stringify],
+      ['application/json', JSON.stringify],
+      ['text/json', JSON.stringify],
+    ]),
+    private readonly deserializers: Map<string, Deserializer> = new Map([
+      ['*/*', JSON.parse],
+      ['application/json', JSON.parse],
+      ['text/json', JSON.parse],
+    ]),
+  ) {}
+
+  async getCollection(collectionId: string) {
+    const response = await window.fetch([this.baseUrl, collectionId].join('/'))
+    const contentType = response.headers.get('content-type')
+    const { [contentType]: deserializer = this.deserializers.get('*/*'), } = Object.fromEntries(this.deserializers.entries())
+    const payload = await response.text()
+    return deserializer(payload)
+  }
+
+  async setItem(collectionId: string, item: U, contentType = 'application/json') {
+    const { [contentType]: serializer = this.serializers.get('application/json'), } = Object.fromEntries(this.serializers.entries())
+    const response = await window.fetch([this.baseUrl, collectionId, this.getItemId(item)].join('/'), {
+      method: 'put',
+      body: serializer(item),
+    })
+    // resource is created
+    if (response.status === CREATED) {
+      return
+    }
+    if (100 <= response.status && response.status <= 399) {
+      console.warn(`Expected response is ${CREATED}, got ${response.status}.`)
+      return
+    }
+    throw new Error(response.statusText)
+  }
+
+  async removeItem(collectionId: string, item: U) {
+    const response = await window.fetch([this.baseUrl, collectionId, this.getItemId(item)].join('/'), {
+      method: 'delete',
+    })
+    // resource is deleted
+    if (response.status === NO_CONTENT) {
+      return true
+    }
+    // resource is already deleted
+    if (response.status === NOT_FOUND || response.status === GONE) {
+      return false
+    }
+    if (100 <= response.status && response.status <= 399) {
+      console.warn(`Expected response is ${NO_CONTENT}, got ${response.status}.`)
+      // assume there's a change in the collection
+      return true
+    }
+    throw new Error(response.statusText)
+  }
+
+  // TODO do removeCollection for account closing?
+}
diff --git a/src/Storage.ts b/src/Storage.ts
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index 0000000..a9a37f1
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+++ b/src/Storage.ts
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+import Storage, { Collection } from '../../core/src/storage'
+import Engine from './Engine'
+
+export default class RemoteStorage<T> implements Storage<T> {
+  private readonly engine: Engine<T, Collection<T>>
+
+  constructor(
+    private ownerId: string,
+    private baseUrl: string,
+    private collectionId: string,
+  ) {
+    this.engine = new Engine(baseUrl)
+  }
+
+  async deleteItem(item: T) {
+    return this.engine.removeItem(this.collectionId, item)
+  }
+
+  async queryItems() {
+    const response = await this.engine.getCollection(this.collectionId) as Collection<T>;
+    return response.items;
+  }
+
+  async saveItem(newItem: T) {
+    return this.engine.setItem(this.collectionId, newItem)
+  }
+}
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..873b4d5
--- /dev/null
+++ b/src/index.ts
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+import { Plugin } from '../../core/src/plugin'
+import Storage from './Storage'
+
+type PluginConfig = {
+  baseUrl: string,
+}
+
+const RemoteStoragePlugin: Plugin<PluginConfig> = config => ({
+  currentUserId,
+}) => {
+  new Storage(currentUserId, config.baseUrl, 'notes')
+  new Storage(currentUserId, config.baseUrl, 'folders')
+}
+
+export default RemoteStoragePlugin
diff --git a/tsconfig.json b/tsconfig.json
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--- /dev/null
+++ b/tsconfig.json
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+{
+  "compilerOptions": {
+    "target": "es6",
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "forceConsistentCasingInFileNames": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "declaration": true,
+    "declarationDir": "./dist",
+    "sourceMap": true,
+    "strict": false
+  },
+  "exclude": [
+    "node_modules",
+    "**/*.test.ts"
+  ],
+  "include": [
+    "**/*.ts"
+  ]
+}