Tasks query API, yay!

package-lock.json

@@ -336,6 +336,25 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.5.tgz",
       "integrity": "sha512-9fq4jZVhPNW8r+UYKnxF1e2HkDWOWKM5bC2/7c9wPV835I0aOrVbS/Hw/pWPk2uKrNXQqg9Z959Kz+IYDd5p3w=="
     },
+    "@types/pg": {
+      "version": "7.11.2",
+      "resolved": "https://registry.npmjs.org/@types/pg/-/pg-7.11.2.tgz",
+      "integrity": "sha512-4+rj7fnidA77jFURNanuPPc1HrQv+RkhI6s+K18G9zOKbOUUpChA/rbNMqFukNuZ89LoIt/I9dAlxf329TjCNw==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*",
+        "@types/pg-types": "*"
+      }
+    },
+    "@types/pg-types": {
+      "version": "1.11.4",
+      "resolved": "https://registry.npmjs.org/@types/pg-types/-/pg-types-1.11.4.tgz",
+      "integrity": "sha512-WdIiQmE347LGc1Vq3Ki8sk3iyCuLgnccqVzgxek6gEHp2H0p3MQ3jniIHt+bRODXKju4kNQ+mp53lmP5+/9moQ==",
+      "dev": true,
+      "requires": {
+        "moment": ">=2.14.0"
+      }
+    },
     "@types/pino": {
       "version": "5.8.10",
       "resolved": "https://registry.npmjs.org/@types/pino/-/pino-5.8.10.tgz",
@@ -4778,6 +4797,12 @@
         }
       }
     },
+    "moment": {
+      "version": "2.24.0",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
+      "integrity": "sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==",
+      "dev": true
+    },
     "monet": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/monet/-/monet-0.9.0.tgz",

package.json

@@ -30,6 +30,7 @@
     "http-errors": "^1.7.3",
     "luxon": "^1.19.2",
     "monet": "^0.9.0",
+    "pg": "^7.12.1",
     "pg-promise": "^9.2.1",
     "pino": "^5.13.3",
     "pug": "^2.0.4",
@@ -48,6 +49,7 @@
     "@types/http-errors": "^1.6.2",
     "@types/luxon": "^1.15.2",
     "@types/node": "^12.7.5",
+    "@types/pg": "^7.11.2",
     "@types/pino": "^5.8.10",
     "@types/webpack-dev-middleware": "^2.0.3",
     "css-loader": "^3.2.0",

sql/migrations/patches/20191007000600-task-schedule-type/down.sql

@@ -0,0 +1 @@
+DROP TYPE task_schedule;

sql/migrations/patches/20191007000600-task-schedule-type/up.sql

@@ -0,0 +1 @@
+CREATE TYPE task_schedule AS ENUM('once', 'daily', 'weekly', 'monthly', 'yearly');

sql/migrations/patches/20191007000601-tasks/down.sql

@@ -0,0 +1 @@
+DROP TABLE tasks;

sql/migrations/patches/20191007000601-tasks/up.sql

@@ -0,0 +1,14 @@
+CREATE TABLE tasks (
+    id integer GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
+    owner integer NOT NULL REFERENCES users(id),
+    name text NOT NULL,
+    notes text,
+    schedule task_schedule NOT NULL DEFAULT 'daily',
+    min_frequency integer,
+    max_frequency integer,
+    created_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CHECK(min_frequency IS NULL OR max_frequency IS NULL OR max_frequency > min_frequency)
+);
+
+CREATE TRIGGER set_tasks_updated BEFORE UPDATE ON tasks FOR EACH ROW EXECUTE PROCEDURE set_updated_timestamp();

sql/tasks/list.sql

@@ -0,0 +1,14 @@
+SELECT 
+    id,
+    name,
+    notes,
+    schedule,
+    min_frequency,
+    max_frequency,
+    created_at
+FROM
+    tasks
+WHERE
+    owner = $1
+ORDER BY created_at ASC
+LIMIT $2 OFFSET $3;

src/api.ts

@@ -14,6 +14,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import { db } from "@kredens/db";
+import { User } from "@kredens/db/models";
 import { ApolloServer, AuthenticationError, gql } from "apollo-server-express";
 import { Kind } from "graphql/language";
 import { GraphQLScalarType, GraphQLScalarTypeConfig } from "graphql/type";
@@ -24,15 +25,40 @@ const typeDefs = gql`
     "A simple type for getting started"
     hello: String
     migrations: [Migration]!
+    user(id: ID): User
   }
 
   type Migration {
-    id: ID
+    id: ID!
     name: String!
     applied_at: DateTime!
   }
 
+  type User {
+    id: ID!
+    email: String!
+    tasks: [Task]!
+  }
+
+  type Task {
+    id: ID
+    name: String!
+    notes: String
+    schedule: ScheduleType!
+    min_frequency: Int
+    max_frequency: Int
+    created_at: DateTime!
+  }
+
   scalar DateTime
+
+  enum ScheduleType {
+    ONCE
+    DAILY
+    WEEKLY
+    MONTHLY
+    YEARLY
+  }
 `;
 
 const dateTimeConfig: GraphQLScalarTypeConfig<DateTime, string> = {
@@ -56,12 +82,29 @@ const dateTimeConfig: GraphQLScalarTypeConfig<DateTime, string> = {
 const resolvers = {
   DateTime: new GraphQLScalarType(dateTimeConfig),
   Query: {
-    hello: async () => {
-      return `Hello, world!`;
-    },
-    migrations: async () => {
-      return db.migrations.applied();
+    hello: () => `Hello, world!`,
+    migrations: () => db.migrations.applied(),
+    user: async (
+      parent: any,
+      { id }: { id: string },
+      context: { user?: User }
+    ) => {
+      if (!context.user || context.user.id !== +id) {
+        throw new AuthenticationError(
+          "You cannot query users other than yourself"
+        );
+      }
+      return db.users.details(+id).then(user => user.orNull());
     }
+  },
+  User: {
+    tasks: (user: User) =>
+      db.tasks.list(user.id).then(tasks =>
+        tasks.map(t => ({
+          ...t,
+          schedule: t.schedule.toUpperCase()
+        }))
+      )
   }
 };
 

src/db/index.ts

@@ -16,16 +16,23 @@
 import {
   Extensions,
   MigrationRepository,
+  TaskRepository,
   UserRepository
 } from "@kredens/db/repos";
-
+import { DateTime } from "luxon";
+import pg from "pg";
 import pgPromise, { IDatabase, IInitOptions } from "pg-promise";
 
+const types = pg.types;
+types.setTypeParser(types.builtins.TIMESTAMPTZ, DateTime.fromSQL);
+types.setTypeParser(types.builtins.TIMESTAMP, DateTime.fromSQL);
+
 type ExtendedProtocol = IDatabase<Extensions> & Extensions;
 
 const initOptions: IInitOptions<Extensions> = {
   extend(obj: ExtendedProtocol, dc: any) {
     obj.migrations = new MigrationRepository(obj, pgp);
+    obj.tasks = new TaskRepository(obj, pgp);
     obj.users = new UserRepository(obj, pgp);
   }
 };

src/db/models.ts

@@ -25,3 +25,16 @@ export interface User {
   id: number;
   email: string;
 }
+
+export type ScheduleType = "once" | "daily" | "weekly" | "monthly" | "yearly";
+
+export interface Task {
+  id: number;
+  owner: number;
+  name: string;
+  notes?: string;
+  schedule: ScheduleType;
+  min_frequency?: number;
+  max_frequency?: number;
+  created_at: DateTime;
+}

src/db/repos/index.ts

@@ -14,11 +14,13 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import { MigrationRepository } from "@kredens/db/repos/migrations";
+import { TaskRepository } from "@kredens/db/repos/tasks";
 import { UserRepository } from "@kredens/db/repos/users";
 
 export interface Extensions {
   migrations: MigrationRepository;
   users: UserRepository;
+  tasks: TaskRepository;
 }
 
-export { MigrationRepository, UserRepository };
+export { MigrationRepository, UserRepository, TaskRepository };

src/db/repos/migrations.ts

@@ -50,7 +50,7 @@ export class MigrationRepository {
   public async applied(): Promise<Migration[]> {
     return this.db.map<Migration>(sql.applied, [], row => {
       return {
-        applied_at: DateTime.fromSQL(row.applied_at),
+        applied_at: row.applied_at as DateTime,
         id: +row.id,
         name: row.name
       };

src/db/repos/tasks.ts

@@ -0,0 +1,32 @@
+// Copyright (C) 2019 ModZero <modzero@modzero.xyz>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import { ScheduleType, Task } from "@kredens/db/models";
+import { tasks as sql } from "@kredens/db/sql";
+import { IDatabase, IMain } from "pg-promise";
+
+export class TaskRepository {
+  private db: IDatabase<any>;
+
+  constructor(db: IDatabase<any>, pgp: IMain) {
+    this.db = db;
+  }
+
+  public async list(owner: number): Promise<Task[]> {
+    return this.db
+      .manyOrNone<Task>(sql.list, [owner, 10, 0])
+      .then(rows => (rows ? rows : []));
+  }
+}

src/db/repos/users.ts

@@ -13,11 +13,11 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import { User } from "@kredens/db/models";
 import { users as sql } from "@kredens/db/sql";
 import argon2 from "argon2";
 import { Maybe, None, Some } from "monet";
 import { IDatabase, IMain } from "pg-promise";
-import { User } from "@kredens/db/models";
 
 export class UserRepository {
   private db: IDatabase<any>;

src/db/sql/index.ts

@@ -41,7 +41,11 @@ const users = {
   login: sql("users/login.sql")
 };
 
-export { migrations, users };
+const tasks = {
+  list: sql("tasks/list.sql")
+};
+
+export { migrations, users, tasks };
 
 /** Helper for linking to external query files */
 function sql(file: string): QueryFile {