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@sammo/api_def/package.json

@@ -13,7 +13,7 @@
   },
   "author": "",
   "type": "module",
-  "license": "ISC",
+  "license": "MIT",
   "dependencies": {
     "@sammo/crypto": "workspace:^",
     "@sammo/secure_token": "workspace:^",

@sammo/crypto/package.json

@@ -20,7 +20,7 @@
   },
   "author": "",
   "type": "module",
-  "license": "ISC",
+  "license": "MIT",
   "dependencies": {
     "@sammo/util": "workspace:^"
   },

@sammo/crypto/src/index.ts

@@ -1,28 +1,4 @@
-export class NotYetImplemented extends Error {
-    public override name = 'NotYetImplemented';
-    override toString(): string {
-        if (this.message) {
-            return this.name + ': ' + this.message;
-        }
-        else {
-            return this.name;
-        }
-
-    }
-}
-
-
-export class InvalidArgument extends Error {
-    public override name = 'InvalidArgument';
-    override toString(): string {
-        if (this.message) {
-            return this.name + ': ' + this.message;
-        }
-        else {
-            return this.name;
-        }
-    }
-}
+import { InvalidArgument } from '@sammo/util';
 
 export class InvalidVType extends InvalidArgument {
     public override name = 'InvalidVType';

@sammo/gateway/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@sammo/gateway",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "scripts": {
+    "build": "tsc --build"
+  },
+  "author": "",
+  "type": "module",
+  "license": "MIT",
+  "dependencies": {
+    "@sammo/api_def": "workspace:^",
+    "@sammo/server_util": "workspace:^",
+    "@sammo/util": "workspace:^",
+    "@strpc/express": "workspace:^",
+    "dotenv": "^16.3.1",
+    "mongoose": "^7.4.3"
+  },
+  "devDependencies": {
+    "@types/node": "^20.6.3"
+  }
+}

@sammo/gateway/src/MongoSequence.ts

@@ -0,0 +1,25 @@
+import type { StateIncrementer } from '@sammo/server_util';
+import SchemaSequence from './schema/SchemaSequence.js';
+import { InvalidArgument } from '@sammo/util';
+
+export function MongoSequenceFactory(collectionName: string): StateIncrementer{
+
+	return async (increase: number) => {
+		if(increase <= 0){
+			throw new InvalidArgument('increase must be > 0');
+		}
+		increase = Math.ceil(increase);
+
+		const result = await SchemaSequence.findOneAndUpdate({
+			collectionName,
+		}, {
+			$inc: {
+				nextSeq: increase,
+			},
+		}, {
+			upsert: true,
+			new: true,
+		});
+		return result.nextSeq;
+	}
+}

@sammo/gateway/src/connectDB.ts

@@ -0,0 +1,22 @@
+import './dotenv.js';
+import { connect, Mongoose } from "mongoose";
+import { unwrap } from '@sammo/util';
+
+const dbConfig = {
+    host: unwrap(process.env.GATEWAY_DB_HOST),
+    port: Number(unwrap(process.env.GATEWAY_DB_PORT)),
+    user: unwrap(process.env.GATEWAY_DB_USER),
+    password: unwrap(process.env.GATEWAY_DB_PASSWORD),
+    database: unwrap(process.env.GATEWAY_DB_DATABASE),
+}
+
+const db: Promise<Mongoose> = (async () => {
+    return await connect(`mongodb://${dbConfig.host}:${dbConfig.port}/${dbConfig.database}`, {
+        auth:{
+            username: dbConfig.user,
+            password: dbConfig.password,
+        }
+    });
+})();
+
+export default db;

@sammo/gateway/src/constPath.ts

@@ -0,0 +1,3 @@
+import { resolve } from "node:path";
+
+export const rootPath = resolve(resolve(), '../..');

@sammo/gateway/src/dotenv.ts

@@ -0,0 +1,47 @@
+import dotenv from 'dotenv';
+import { rootPath } from './constPath.js';
+import { unwrap } from '@sammo/util';
+
+let init = false;
+const dirPath = rootPath
+console.log(rootPath);
+
+function initDotEnv() {
+	if (process.env['NODE_ENV'] == 'production') {
+		dotenv.config({ path: `${dirPath}/.env.production.local` });
+		dotenv.config({ path: `${dirPath}/.env.local` });
+		dotenv.config({ path: `${dirPath}/.env.production` });
+	}
+	else {
+		dotenv.config({ path: `${dirPath}/.env.development.local` });
+		dotenv.config({ path: `${dirPath}/.env.local` });
+		dotenv.config({ path: `${dirPath}/.env.development` });
+	}
+	dotenv.config();
+	init = true;
+}
+
+if (!init) {
+	initDotEnv();
+}
+
+let _ownConfig: ReturnType<typeof generateConfig>|undefined = undefined;
+
+function generateConfig() {
+	return {
+		port: parseInt(process.env['SERVER_PORT'] ?? "3001"),
+		sessionSecret: unwrap(process.env['SESSION_SECRET']),
+		apiRootPath: process.env['API_ROOT_PATH'] ?? '/api/gateway',
+	} as const;
+}
+
+export function ownConfig() {
+	if(_ownConfig !== undefined){
+		return _ownConfig;
+	}
+	if(!init){
+		initDotEnv();
+	}
+	_ownConfig = generateConfig();
+	return _ownConfig;
+}

@sammo/gateway/src/gatewayConfig.ts

@@ -0,0 +1,7 @@
+import 'dotenv/config';
+import { unwrap } from "@sammo/util";
+
+export const gatewayConfig = {
+    sessionSecret: unwrap(process.env.GATEWAY_SESSION_SECRET),
+    port: Number(unwrap(process.env.GATEWAY_PORT)),
+};

@sammo/gateway/src/index.ts

@@ -0,0 +1,34 @@
+import './dotenv.js'
+import 'reflect-metadata';
+import gatewayDB from './connectDB.js';
+import express, { type Request, type Response } from "express"
+import session from "express-session";
+import { buildAPISystem } from '@strpc/express/generator';
+//import { sammoGatewayAPI } from './api/index.js';
+import { unwrap } from '@sammo/util';;
+import { gatewayConfig } from './gatewayConfig.js';
+
+
+
+
+gatewayDB.then(async (gatewayDB) => {
+    // create express app
+    const app = express()
+    app.use(express.json());
+    app.use(session({
+        secret: unwrap(gatewayConfig.sessionSecret),
+        resave: false,
+        saveUninitialized: false,
+    }))
+    //app.set('etag', false);
+
+    //app.use('/gateway_api', buildAPISystem(sammoGatewayAPI));
+
+    // start express server
+    app.listen(gatewayConfig.port)
+
+    console.log(`Gateway server has started on port ${gatewayConfig.port}`)
+
+}).catch(error => console.log(error));
+
+export default {};

@sammo/gateway/src/schema/SchemaSequence.ts

@@ -0,0 +1,23 @@
+import { Schema, model, Types } from 'mongoose';
+
+interface ISchemaSequence {
+	_id: Types.ObjectId;
+
+	collectionName: string;
+	nextSeq: number;
+}
+
+export const SchemaSequence = new Schema<ISchemaSequence>({
+	collectionName: { type: String, required: true },
+	nextSeq: {
+		type: Number, required: true,
+		get: (v: number) => Math.ceil(v),
+		set: (v: number) => Math.ceil(v),
+		default: 0,
+	},
+
+}, { autoIndex: true, autoCreate: true })
+	.index({ collectionName: 1 }, { unique: true })
+	;
+
+export default model<ISchemaSequence>('SchemaSequence', SchemaSequence);

@sammo/gateway/tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "./src",
+    "outDir": "./dist",
+  },
+  "references": [
+    {
+      "path": "../../@strpc/express"
+    },
+    {
+      "path": "../util"
+    },
+    {
+      "path": "../crypto"
+    },
+    {
+      "path": "../server_util"
+    },
+  ]
+}

@sammo/secure_token/package.json

@@ -8,7 +8,7 @@
   },
   "author": "",
   "type": "module",
-  "license": "ISC",
+  "license": "MIT",
   "dependencies": {
     "@sammo/crypto": "workspace:^",
     "@sammo/util": "workspace:^"

@sammo/server_util/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@sammo/server_util",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "scripts": {
+    "build": "tsc --build"
+  },
+  "type": "module",
+  "keywords": [],
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "@sammo/api_def": "workspace:^",
+    "@sammo/util": "workspace:^"
+  },
+  "devDependencies": {
+    "lodash-es": "^4.17.21"
+  },
+  "peerDependencies": {
+    "lodash-es": "^4.17.21"
+  }
+}

@sammo/server_util/src/UniqueNumberAllocator.ts

@@ -0,0 +1,198 @@
+export interface StateIncrementer {
+    (increase: number): Promise<number>;
+}
+
+export type NumberGroup = {
+    start: number;
+    remain: number;
+}
+
+const AllocatorGroupBucketSize = 100;
+const AllocatorPreserveThreshold = 50;
+
+export function* numberGenerator(numberGroups: NumberGroup[]): Generator<number, null> {
+    for (const numberGroup of numberGroups) {
+        for (let i = 0; i < numberGroup.remain; i++) {
+            yield numberGroup.start + i;
+        }
+    }
+    return null;
+}
+
+export class UniqueNumberAllocator {
+    private preservedNumbers: NumberGroup[];
+    private incrementer: StateIncrementer;
+    private totalRemain: number;
+    private promisedCnt: number;
+    private promise: Promise<void>;
+
+    public constructor(incrementer: StateIncrementer, initialState?: NumberGroup) {
+        this.incrementer = incrementer;
+        if (!initialState) {
+            this.preservedNumbers = [];
+            this.totalRemain = 0;
+        }
+        else {
+            if (initialState.remain < 1) {
+                throw new Error('initialState.remain must be greater than 0');
+            }
+            this.preservedNumbers = [initialState];
+            this.totalRemain = initialState.remain;
+        }
+        this.promisedCnt = 0;
+        this.promise = Promise.resolve();
+        this.preserveNext();
+    }
+
+    public static async generate(incrementer: StateIncrementer): Promise<UniqueNumberAllocator> {
+        const initialStateEnd = await incrementer(AllocatorGroupBucketSize);
+        const initialState: NumberGroup = {
+            start: initialStateEnd - AllocatorGroupBucketSize + 1,
+            remain: AllocatorGroupBucketSize,
+        }
+        return new UniqueNumberAllocator(incrementer, initialState);
+    }
+
+    private preserveNext(): void {
+        if (this.promisedCnt + this.totalRemain >= AllocatorGroupBucketSize) {
+            return;
+        }
+
+        if (this.totalRemain >= AllocatorPreserveThreshold) {
+            return;
+        }
+
+        const waiter = this.promise;
+
+        this.promise = (async () => {
+            this.promisedCnt += AllocatorGroupBucketSize;
+            const nextP = this.incrementer(AllocatorGroupBucketSize);
+            await waiter;
+            const next = await nextP;
+            if (this.preservedNumbers.length > 0) {
+                const last = this.preservedNumbers[this.preservedNumbers.length - 1];
+                if (last.start + last.remain === next - AllocatorGroupBucketSize + 1) {
+                    // 마지막 그룹과 연속됨
+                    last.remain += AllocatorGroupBucketSize;
+                    this.totalRemain += AllocatorGroupBucketSize;
+                    this.promisedCnt -= AllocatorGroupBucketSize;
+                    return;
+                }
+            }
+            const nextGroup: NumberGroup = {
+                start: next - AllocatorGroupBucketSize + 1,
+                remain: AllocatorGroupBucketSize,
+            }
+            this.preservedNumbers.push(nextGroup);
+            this.totalRemain += AllocatorGroupBucketSize;
+            this.promisedCnt -= AllocatorGroupBucketSize;
+        })();
+    }
+
+    public async allocateOne(): Promise<number> {
+        if (this.totalRemain > 0) {
+            const head = this.preservedNumbers[0];
+            if (head.remain > 1) {
+                const next = head.start;
+                head.start++;
+                head.remain--;
+                this.totalRemain--;
+                this.preserveNext();
+                return next;
+            }
+            else {
+                this.preservedNumbers.shift();
+                this.totalRemain--;
+                this.preserveNext();
+                return head.start;
+            }
+        }
+
+        const next = (await this.allocate(1)).next().value;
+        if (next === null) {
+            throw new Error('incrementer failed to allocate enough numbers');
+        }
+        return next;
+    }
+
+    public async allocate(n: number): Promise<Generator<number, null>> {
+        n = Math.ceil(n);
+        if (n < 1) {
+            throw new Error('n must be greater than 0');
+        }
+
+        if (n > this.totalRemain + this.promisedCnt) {
+            const endP = this.incrementer(n);
+            this.preserveNext();
+            const end = await endP;
+
+            return numberGenerator([{
+                start: end - n + 1,
+                remain: n,
+            }]);
+        }
+
+        const result: NumberGroup[] = [];
+
+        if (this.totalRemain > 0) {
+            const head = this.preservedNumbers[0];
+            const headRemain = head.remain;
+
+            if (n < headRemain) {
+                result.push({
+                    start: head.start,
+                    remain: n,
+                });
+                head.start += n;
+                head.remain -= n;
+                this.totalRemain -= n;
+                this.preserveNext();
+                return numberGenerator(result);
+            }
+            if (n === headRemain) {
+                this.preservedNumbers.shift();
+                result.push(head);
+                this.totalRemain -= n;
+                this.preserveNext();
+                return numberGenerator(result);
+            }
+
+        }
+
+        //assert n <= this.totalRemain + this.promisedRemain
+
+        if (n > this.totalRemain) {
+            await this.promise;
+            if (n > this.totalRemain) {
+                throw new Error('incrementer failed to allocate enough numbers');
+            }
+        }
+
+        this.totalRemain -= n;
+        this.preserveNext();
+
+        let remain = n;
+        let idx = 0;
+        while (remain > 0) {
+            const head = this.preservedNumbers[idx];
+            if (head.remain <= remain) {
+                remain -= head.remain;
+                result.push(head);
+                idx++;
+                continue;
+            }
+
+            result.push({
+                start: head.start,
+                remain: remain,
+            });
+            head.start += remain;
+            head.remain -= remain;
+            remain = 0;
+            break;
+        }
+        this.preservedNumbers = this.preservedNumbers.slice(idx);
+
+        return numberGenerator(result);
+    }
+}

@sammo/server_util/src/index.ts

@@ -0,0 +1 @@
+export { UniqueNumberAllocator, type StateIncrementer } from './UniqueNumberAllocator.js';

@sammo/server_util/tsconfig.json

@@ -0,0 +1,33 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "module": "node16",
+    "moduleResolution": "node16",
+    "resolveJsonModule": true,
+    "declaration": true,
+    "declarationMap": true,
+    "importHelpers": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitOverride": true,
+    "skipLibCheck": true,
+    "incremental": true,
+    "rootDir": "./src",
+    "outDir": "./dist",
+    "composite": true
+  },
+  "references": [
+    {
+      "path": "../util"
+    },
+    {
+      "path": "../crypto"
+    },
+  ]
+}

@sammo/util/package.json

@@ -9,7 +9,7 @@
   "type": "module",
   "keywords": [],
   "author": "",
-  "license": "ISC",
+  "license": "MIT",
   "devDependencies": {
     "lodash-es": "^4.17.21"
   },

@sammo/util/src/error.ts

@@ -15,4 +15,29 @@ export class RuntimeError extends Error {
             return this.name;
         }
     }
-}
+}
+
+export class NotYetImplemented extends Error {
+    public override name = 'NotYetImplemented';
+    override toString(): string {
+        if (this.message) {
+            return this.name + ': ' + this.message;
+        }
+        else {
+            return this.name;
+        }
+
+    }
+}
+
+export class InvalidArgument extends Error {
+    public override name = 'InvalidArgument';
+    override toString(): string {
+        if (this.message) {
+            return this.name + ': ' + this.message;
+        }
+        else {
+            return this.name;
+        }
+    }
+}