Mobile app PoC (#281)

Initial checkin of mobile "native" app

plugos/sqlite/capacitor_sqlite.ts

@@ -0,0 +1,36 @@
+import { Capacitor } from "../../mobile/deps.ts";
+import { CapacitorSQLite } from "../deps.ts";
+import { ISQLite } from "./sqlite_interface.ts";
+
+export class CapacitorDb implements ISQLite {
+  constructor(readonly name: string) {
+  }
+  async init() {
+    await CapacitorSQLite.createConnection({
+      database: this.name,
+    });
+    await CapacitorSQLite.open({
+      database: this.name,
+    });
+  }
+
+  async query(sql: string, ...args: any[]) {
+    const result = await CapacitorSQLite.query({
+      statement: sql,
+      database: this.name,
+      values: args,
+    });
+    if (Capacitor.getPlatform() === "ios") {
+      return result.values!.slice(1);
+    }
+    return result.values!;
+  }
+
+  async execute(sql: string, ...args: any[]): Promise<number> {
+    return (await CapacitorSQLite.run({
+      statement: sql,
+      database: this.name,
+      values: args,
+    })).changes!.changes!;
+  }
+}