Refactor units to be generic; start bundles; start app index.ts

app/bundle/daton.ts

@@ -0,0 +1,2 @@
+export * from '../../lib/src/module.ts'
+export * from '../../di/module.ts'

app/bundle/daton_units.ts

@@ -0,0 +1,4 @@
+export { default as ConfigUnit } from '../../lib/src/unit/Config.ts'
+export { DatabaseUnit } from '../../orm/src/DatabaseUnit.ts'
+export { default as ControllerUnit } from '../../lib/src/unit/Controllers.ts'
+export { default as MiddlewareUnit } from '../../lib/src/unit/Middlewares.ts'

app/configs/app.config.ts

@@ -0,0 +1,5 @@
+import { env } from '../../lib/src/unit/Scaffolding.ts';
+
+export default {
+    name: env('APP_NAME', 'Daton'),
+}

app/configs/app/app.config.ts

@@ -1,5 +0,0 @@
-import { env } from '../../../lib/src/unit/Scaffolding.ts';
-
-export default {
-    name: env('APP_NAME', 'Daton'),
-}

app/configs/db.config.ts

@@ -0,0 +1,16 @@
+import {env} from "../../lib/src/unit/Scaffolding.ts";
+
+export default {
+
+    connections: {
+        default: {
+            type: env('DB_TYPE', 'postgres'),
+            user: env('DB_USERNAME', 'daton'),
+            password: env('DB_PASSWORD'),
+            database: env('DB_DATABASE', 'daton'),
+            hostname: env('DB_HOSTNAME', 'localhost'),
+            port: env('DB_PORT', 5432),
+        }
+    }
+
+}

app/index.ts

@@ -0,0 +1,20 @@
+#!/usr/bin/env -S deno run -c ./tsconfig.json --unstable --allow-read --allow-env --allow-net
+/* Main executable for the Daton app. */
+
+import { make, Scaffolding, Application } from './bundle/daton.ts'
+import units from './units.ts'
+
+/*
+ * Let's get up and running. The scaffolding provides the bare minimum
+ * amount of support required to get Daton up and running. The app handles
+ * the rest.
+ */
+const scaffolding = make(Scaffolding)
+await scaffolding.up()
+
+/*
+ * Now, import the units and start the application. The units define each
+ * modular piece of functionality that is managed by the Daton app.
+ */
+const app = make(Application, units)
+await app.run()

app/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "compilerOptions": {
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true
+  }
+}
+
+

app/units.ts

@@ -0,0 +1,8 @@
+import {ConfigUnit, DatabaseUnit, ControllerUnit, MiddlewareUnit} from './bundle/daton_units.ts'
+
+export default [
+    ConfigUnit,
+    DatabaseUnit,
+    MiddlewareUnit,
+    ControllerUnit,
+]

lib/src/lifecycle/Application.ts

@@ -1,16 +1,21 @@
 import {Service} from '../../../di/src/decorator/Service.ts'
 import {Logging} from '../service/logging/Logging.ts'
-import Unit from './Unit.ts'
+import LifecycleUnit from './Unit.ts'
 import {container, make} from '../../../di/src/global.ts'
 import {DependencyKey} from '../../../di/src/type/DependencyKey.ts'
 import RunLevelErrorHandler from '../error/RunLevelErrorHandler.ts'
+import {Status} from '../const/status.ts'
+import Instantiable from "../../../di/src/type/Instantiable.ts";
+import {Collection} from "../collection/Collection.ts";
 
 @Service()
 export default class Application {
+    protected instantiated_units: Collection<LifecycleUnit> = new Collection<LifecycleUnit>()
+
     constructor(
         protected logger: Logging,
         protected rleh: RunLevelErrorHandler,
-        protected units: Unit[],
+        protected units: (Instantiable<LifecycleUnit>)[],
     ) {}
 
     make(token: DependencyKey) {
@@ -22,7 +27,12 @@ export default class Application {
     }
 
     async up() {
-
+        this.logger.info('Starting Daton...', true)
+        for ( const unit_class of this.units ) {
+            const unit = this.make(unit_class)
+            this.instantiated_units.push(unit)
+            await this.start_unit(unit)
+        }
     }
 
     async down() {
@@ -31,7 +41,8 @@ export default class Application {
 
     async run() {
         try {
-            this.logger.info('Starting Daton...')
+            await this.up()
+            await this.down()
         } catch (e) {
             await this.app_error(e)
         }
@@ -40,4 +51,19 @@ export default class Application {
     async app_error(e: Error) {
         this.rleh.handle(e)
     }
+
+    protected async start_unit(unit: LifecycleUnit) {
+        try {
+            unit.status = Status.Starting
+            this.logger.info(`Starting ${unit.constructor.name}...`)
+            await unit.up()
+            this.logger.verbose(`Successfully started ${unit.constructor.name}`)
+            unit.status = Status.Running
+        } catch (e) {
+            unit.status = Status.Error
+            this.logger.error(`Error encountered while starting ${unit.constructor.name}. Will attempt to proceed.`)
+            this.logger.debug(e.message)
+            this.logger.verbose(e)
+        }
+    }
 }

lib/src/lifecycle/Unit.ts

@@ -1,9 +1,8 @@
 import { Status, isStatus } from '../const/status.ts'
-import { Unit } from './decorators.ts'
 import { Collection } from '../collection/Collection.ts'
 import {container, make} from '../../../di/src/global.ts'
-import {DependencyKey} from "../../../di/src/type/DependencyKey.ts";
-import Instantiable, {isInstantiable} from "../../../di/src/type/Instantiable.ts";
+import {DependencyKey} from '../../../di/src/type/DependencyKey.ts'
+import Instantiable, {isInstantiable} from '../../../di/src/type/Instantiable.ts'
 
 const isLifecycleUnit = (something: any): something is (typeof LifecycleUnit) => {
     return isInstantiable(something) && something.prototype instanceof LifecycleUnit

lib/src/module.ts

@@ -0,0 +1,2 @@
+export { default as Scaffolding } from './unit/Scaffolding.ts'
+export { default as Application } from './lifecycle/Application.ts'

lib/src/support/Cache.ts

@@ -1,6 +1,6 @@
 export default abstract class Cache {
     public abstract async fetch(key: string): Promise<any>;
-    public abstract async put(key: string, value: any): Promise<void>;
+    public abstract async put(key: string, value: string): Promise<void>;
     public abstract async has(key: string): Promise<boolean>;
     public abstract async drop(key: string): Promise<void>;
 }

lib/src/support/InMemCache.ts

@@ -3,7 +3,7 @@ import { Collection } from '../collection/Collection.ts'
 
 export interface InMemCacheItem {
     key: string,
-    item: any,
+    item: string,
 }
 
 export class InMemCache extends Cache {
@@ -14,7 +14,7 @@ export class InMemCache extends Cache {
         if ( item ) return item.item
     }
 
-    public async put(key: string, item: any) {
+    public async put(key: string, item: string) {
         const existing = this.items.firstWhere('key', '=', key)
         if ( existing ) existing.item = item
         else this.items.push({ key, item })

lib/src/unit/Canonical.ts

@@ -8,11 +8,11 @@ export interface CanonicalDefinition {
     imported: any,
 }
 
-export class Canonical extends LifecycleUnit {
+export class Canonical<T> extends LifecycleUnit {
     protected base_path: string = '.'
     protected suffix: string = '.ts'
     protected canonical_item: string = ''
-    protected _items: { [key: string]: any } = {}
+    protected _items: { [key: string]: T } = {}
 
     public get path(): string {
         return path.resolve(this.base_path)
@@ -32,7 +32,7 @@ export class Canonical extends LifecycleUnit {
         this.make(Canon).register_resource(this.canonical_items, (key: string) => this.get(key))
     }
 
-    public async init_canonical_item(definition: CanonicalDefinition): Promise<any> {
+    public async init_canonical_item(definition: CanonicalDefinition): Promise<T> {
         return definition.imported.default
     }
 
@@ -47,12 +47,7 @@ export class Canonical extends LifecycleUnit {
         return { canonical_name, original_name, imported }
     }
 
-    public get(key: string): any {
-        const key_parts = key.split('.')
-        let desc_value = this._items
-        key_parts.forEach(part => {
-            desc_value = desc_value[part]
-        })
-        return desc_value
+    public get(key: string): T | undefined {
+        return this._items[key]
     }
 }

lib/src/unit/Config.ts

@@ -1,8 +1,8 @@
-import {Canonical} from './Canonical.ts'
 import { Unit } from '../lifecycle/decorators.ts'
+import {RecursiveCanonical} from './RecursiveCanonical.ts'
 
 @Unit()
-export default class Config extends Canonical {
+export default class Config extends RecursiveCanonical {
     protected base_path = './app/configs'
     protected suffix = '.config.ts'
     protected canonical_item = 'config'

lib/src/unit/Controllers.ts

@@ -4,7 +4,7 @@ import Controller from '../http/Controller.ts'
 import { Unit } from '../lifecycle/decorators.ts'
 
 @Unit()
-export default class Controllers extends InstantiableCanonical {
+export default class Controllers extends InstantiableCanonical<Controller> {
     protected base_path = './app/http/controllers'
     protected canonical_item = 'controller'
     protected suffix = '.controller.ts'

lib/src/unit/InstantiableCanonical.ts

@@ -1,5 +1,5 @@
 import {Canonical, CanonicalDefinition} from './Canonical.ts'
-import {isInstantiable} from '../../../di/src/type/Instantiable.ts'
+import Instantiable, {isInstantiable} from '../../../di/src/type/Instantiable.ts'
 
 export class InvalidCanonicalExportError extends Error {
     constructor(name: string) {
@@ -7,8 +7,8 @@ export class InvalidCanonicalExportError extends Error {
     }
 }
 
-export class InstantiableCanonical extends Canonical {
-    public async init_canonical_item(def: CanonicalDefinition) {
+export class InstantiableCanonical<T> extends Canonical<Instantiable<T>> {
+    public async init_canonical_item(def: CanonicalDefinition): Promise<Instantiable<T>> {
         if ( isInstantiable(def.imported.default) ) {
             return this.make(def.imported.default)
         }

lib/src/unit/Middlewares.ts

@@ -4,7 +4,7 @@ import { Middleware } from '../http/Middleware.ts'
 import { Unit } from '../lifecycle/decorators.ts'
 
 @Unit()
-export default class Middlewares extends InstantiableCanonical {
+export default class Middlewares extends InstantiableCanonical<Middleware> {
     protected base_path = './app/http/middleware'
     protected canonical_item = 'middleware'
     protected suffix = '.middleware.ts'

lib/src/unit/RecursiveCanonical.ts

@@ -0,0 +1,12 @@
+import {Canonical} from './Canonical.ts'
+
+export class RecursiveCanonical extends Canonical<any> {
+    public get(key: string): any | undefined {
+        const parts = key.split('.')
+        let current_value = this._items
+        for ( const part of parts ) {
+            current_value = current_value?.[part]
+        }
+        return current_value
+    }
+}

lib/src/unit/Scaffolding.ts

@@ -10,7 +10,7 @@ import { Container } from '../../../di/src/Container.ts'
 import { Inject } from '../../../di/src/decorator/Injection.ts'
 import CacheFactory from "../support/CacheFactory.ts";
 
-const env = (name: string, fallback: any) => {
+const env = (name: string, fallback?: any) => {
     const scaffolding = make(Scaffolding)
     return scaffolding.env(name) ?? fallback
 }
@@ -31,6 +31,9 @@ export default class Scaffolding extends LifecycleUnit {
 
     public async up() {
         this.setup_logging()
+
+        this.logger.verbose('Adding the cache production factory to the container...')
+        this.injector.register_factory(new CacheFactory())
     }
 
     public setup_logging() {
@@ -48,8 +51,5 @@ export default class Scaffolding extends LifecycleUnit {
         } catch (e) {}
 
         this.logger.info('Logging initialized.', true)
-
-        this.logger.verbose('Adding the cache production factory to the container...')
-        this.injector.register_factory(new CacheFactory())
     }
 }

orm/src/DatabaseUnit.ts

@@ -0,0 +1,31 @@
+import LifecycleUnit from '../../lib/src/lifecycle/Unit.ts'
+import Config from '../../lib/src/unit/Config.ts'
+import {Unit} from '../../lib/src/lifecycle/decorators.ts'
+import Database from './service/Database.ts'
+
+@Unit()
+export class DatabaseUnit extends LifecycleUnit {
+    constructor(
+        protected config: Config,
+        protected db: Database,
+    ) {
+        super()
+    }
+
+    public async up() {
+        const connections: { [key: string]: any } = this.config.get('db.connections')
+
+        for ( const conn_name in connections ) {
+            if ( !connections.hasOwnProperty(conn_name) ) continue
+            const config = connections[conn_name]
+
+            switch(config.type) {
+                case 'postgres':
+                    await this.db.postgres(conn_name, config)
+                    break
+                default:
+                    throw new TypeError(`Invalid database driver type: ${config.type}`)
+            }
+        }
+    }
+}

test.ts

@@ -1,70 +0,0 @@
-import {make} from "./di/src/global.ts";
-import Application from "./lib/src/lifecycle/Application.ts";
-import Scaffolding from "./lib/src/unit/Scaffolding.ts";
-import {Logging} from "./lib/src/service/logging/Logging.ts";
-import Database from "./orm/src/service/Database.ts";
-import { Model } from './orm/src/model/Model.ts'
-import {Field} from "./orm/src/model/Field.ts";
-import {QueryRow, Type} from './orm/src/db/types.ts';
-import {Builder} from "./orm/src/builder/Builder.ts";
-import ObjectResultOperator from "./orm/src/builder/type/result/ObjectResultOperator.ts";
-import {BehaviorSubject} from "./lib/src/support/BehaviorSubject.ts";
-
-// TODO enum bit fields
-// TODO JSON field support
-
-;(async () => {
-    const scaf = make(Scaffolding)
-    await scaf.up()
-
-    const logger = make(Logging)
-
-    const app = make(Application)
-    await app.run()
-
-    const db = make(Database)
-
-    await db.postgres('garrettmills', {
-        user: 'garrettmills',
-        password: 'garrettmills',
-        database: 'garrettmills',
-        hostname: 'localhost',
-        port: 5432,
-    })
-
-    class User extends Model<User> {
-        protected static connection = 'garrettmills'
-        protected static table = 'daton_users'
-        protected static key = 'user_id'
-
-        protected static appends: string[] = ['display_name']
-        protected static masks: string[] = ['active']
-
-        @Field(Type.int)
-        public user_id!: number
-
-        @Field(Type.varchar)
-        public username!: string
-
-        @Field(Type.varchar)
-        public first_name!: string
-
-        @Field(Type.varchar)
-        public last_name!: string
-
-        @Field(Type.boolean)
-        public active!: boolean
-
-        @Field(Type.timestamp)
-        public updated_at!: Date
-
-        @Field(Type.timestamp)
-        public created_at!: Date
-
-        get display_name(): string {
-            return `${this.last_name}, ${this.first_name}`
-        }
-    }
-
-    const u = await User.find_one({ username: 'garrettmills' })
-})()