(WIP) Implement naive-client

5 files changed, 49 insertions, 2 deletions

diff --git a/client/src/config.model.ts b/client/src/config.model.ts
new file mode 100644
index 0000000..9c3b70a
--- /dev/null
+++ b/client/src/config.model.ts
@@ -0,0 +1,5 @@
+export interface Config {
+  wsPort: number;
+  httpPort: number;
+  url: string;
+}
diff --git a/client/src/database-connection.model.ts b/client/src/database-connection.model.ts
new file mode 100644
index 0000000..b89014b
--- /dev/null
+++ b/client/src/database-connection.model.ts
@@ -0,0 +1,7 @@
+export interface DatabaseConnection {
+  init(): Promise<any>;
+  close(): Promise<any>;
+  subscribe(path: string, callback: (e: any) => any): Promise<() => any>;
+  write(path: string, toWrite: Object): Promise<any>;
+  remove(path: string): Promise<any>;
+}
diff --git a/client/src/database-connection.ts b/client/src/database-connection.ts
new file mode 100644
index 0000000..d870f71
--- /dev/null
+++ b/client/src/database-connection.ts
@@ -0,0 +1,31 @@
+import { Config } from "./config.model";
+import { DatabaseConnection } from "./database-connection.model";
+
+/**
+ * Client side implementation is implemented using
+ * a function/factory instead of a class to reduce bundle
+ * size
+ */
+export const dbFactory = (config: Config): DatabaseConnection => {
+  const write = (path: string, toWrite: Object | null) => {
+    const { url, httpPort } = config;
+    return fetch(`${url}:${httpPort}/write`, {
+      method: "POST",
+      body: JSON.stringify({
+        path,
+        toWrite
+      })
+    });
+  };
+  return {
+    async init() {},
+    async close() {},
+    async subscribe(path: string, callback: (e: any) => Promise<any>) {
+      return () => {};
+    },
+    write,
+    async remove(path: string) {
+      write(path, null);
+    }
+  };
+};
diff --git a/client/src/index.ts b/client/src/index.ts
new file mode 100644
index 0000000..c16688d
--- /dev/null
+++ b/client/src/index.ts
@@ -0,0 +1,3 @@
+export { dbFactory } from "./database-connection";
+export { DatabaseConnection } from "./database-connection.model";
+export { Config } from "./config.model";
diff --git a/client/tsconfig.json b/client/tsconfig.json
index 9e35360..1b31a6d 100644
--- a/client/tsconfig.json
+++ b/client/tsconfig.json
@@ -4,7 +4,8 @@
     "target": "es2015" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "lib": [
-      "es2017"
+      "es2017",
+      "dom"
     ] /* Specify library files to be included in the compilation. */,
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
@@ -14,7 +15,7 @@
     // "sourceMap": true,                     /* Generates corresponding '.map' file. */
     // "outFile": "./",                       /* Concatenate and emit output to single file. */
     "outDir": "./dist" /* Redirect output structure to the directory. */,
-    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    "rootDir": "../" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
     // "composite": true,                     /* Enable project compilation */
     // "removeComments": true,                /* Do not emit comments to output. */
     // "noEmit": true,                        /* Do not emit outputs. */