initial commit

.gitignore

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+/src/generated
+
+/tmp
+/out-tsc
+
+/node_modules
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+/.pnp
+.pnp.js
+
+.vscode/*

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/codeStyles/codeStyleConfig.xml

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+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/project-inter-server.iml" filepath="$PROJECT_DIR$/.idea/project-inter-server.iml" />
+    </modules>
+  </component>
+</project>

.idea/project-inter-server.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

codegen.ts

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+
+import type { CodegenConfig } from '@graphql-codegen/cli';
+
+const config: CodegenConfig = {
+  overwrite: true,
+  schema: "./schema.graphql",
+  generates: {
+    "src/generated/graphql.ts": {
+      plugins: ["typescript", "typescript-resolvers"]
+    }
+  }
+};
+
+export default config;

dist/generated/graphql.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

dist/index.js

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+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const fs_1 = require("fs");
+const server_1 = require("@apollo/server");
+const standalone_1 = require("@apollo/server/standalone");
+const resolvers_1 = require("./resolvers");
+const typeDefs = (0, fs_1.readFileSync)("./schema.graphql", "utf8");
+function main() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const server = new server_1.ApolloServer({
+            typeDefs,
+            resolvers: resolvers_1.resolvers
+        });
+        const { url } = yield (0, standalone_1.startStandaloneServer)(server, {
+            listen: {
+                port: 4000,
+            },
+            context: (_a) => __awaiter(this, [_a], void 0, function* ({ req, res }) {
+                return {};
+            }),
+        });
+        console.log(`Server ready at: ${url}`);
+    });
+}
+main();

dist/resolvers.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.resolvers = void 0;
+// Mock data
+const systems = [
+    {
+        id: "1",
+        name: "Chapman University",
+        routes: [],
+        stops: [],
+        shuttles: [],
+    },
+];
+const routes = [
+    {
+        name: "Red Route",
+        id: "1",
+        system: systems[0],
+        orderedStops: [],
+        shuttles: [],
+        polylineCoordinates: [],
+        color: "#ffffff",
+    },
+    {
+        name: "Teal Route",
+        id: "2",
+        system: systems[0],
+        orderedStops: [],
+        shuttles: [],
+        polylineCoordinates: [],
+        color: "#ffffff",
+    },
+];
+const stops = [
+    {
+        id: "1",
+        name: "Chapman Court",
+        coordinates: {
+            latitude: 33.796001,
+            longitude: -117.8892805,
+        },
+        system: systems[0],
+        etas: [],
+        orderedStops: [],
+    },
+    {
+        id: "2",
+        name: "Chapman Grand",
+        coordinates: {
+            latitude: 33.804433,
+            longitude: -117.895966,
+        },
+        system: systems[0],
+        etas: [],
+        orderedStops: [],
+    }
+];
+const orderedStopsForRedRoute = [
+    {
+        route: routes[0],
+        stop: stops[0],
+    },
+    {
+        route: routes[0],
+        stop: stops[1],
+    },
+];
+const orderedStopsForTealRoute = [
+    {
+        route: routes[1],
+        stop: stops[1],
+    },
+    {
+        route: routes[1],
+        stop: stops[0],
+    }
+];
+orderedStopsForRedRoute[0].nextStop = orderedStopsForRedRoute[1];
+orderedStopsForRedRoute[1].previousStop = orderedStopsForRedRoute[0];
+orderedStopsForTealRoute[0].nextStop = orderedStopsForTealRoute[1];
+orderedStopsForTealRoute[1].previousStop = orderedStopsForTealRoute[0];
+stops[0].orderedStops = [orderedStopsForRedRoute[0], orderedStopsForTealRoute[1]];
+stops[1].orderedStops = [orderedStopsForRedRoute[1], orderedStopsForTealRoute[0]];
+routes[0].orderedStops = orderedStopsForRedRoute;
+routes[1].orderedStops = orderedStopsForTealRoute;
+const shuttles = [
+    {
+        name: "Red Shuttle 17",
+        id: "1",
+        coordinates: {
+            latitude: 33.796001,
+            longitude: -117.8892805,
+        },
+        route: routes[0],
+        system: systems[0],
+        etas: [],
+    }
+];
+const etas = [
+    {
+        stop: stops[0],
+        shuttle: shuttles[0],
+        secondsRemaining: 12.023,
+    },
+    {
+        stop: stops[1],
+        shuttle: shuttles[0],
+        secondsRemaining: 600.123,
+    }
+];
+shuttles[0].etas = etas;
+routes[0].shuttles = shuttles;
+systems[0].stops = stops;
+systems[0].routes = routes;
+systems[0].shuttles = shuttles;
+exports.resolvers = {
+    Query: {
+        systems: () => systems,
+        system: (parent, args, contextValue, info) => {
+            const system = systems.find((system) => system.id === args.id);
+            if (!system) {
+                return null;
+            }
+            return system;
+        }
+    },
+    System: {
+        stop: (parent, args, contextValue, info) => {
+            const stop = stops.find((stop) => stop.id === args.id);
+            if (!stop) {
+                return null;
+            }
+            return stop;
+        },
+        route: (parent, args, contextValue, info) => {
+            const route = routes.find((route) => route.id === args.id);
+            if (!route) {
+                return null;
+            }
+            return route;
+        },
+        shuttle: (parent, args, contextValue, info) => {
+            const shuttle = shuttles.find((shuttle) => shuttle.id === args.id);
+            if (!shuttle) {
+                return null;
+            }
+            return shuttle;
+        }
+    },
+    Route: {
+        nextOrderedStop: (parent, args, contextValue, info) => {
+            const orderedStop = parent.orderedStops.find((orderedStop) => orderedStop.stop.id === args.forStopId);
+            if (!orderedStop || !orderedStop.nextStop) {
+                return null;
+            }
+            return orderedStop.nextStop;
+        },
+    },
+    Shuttle: {
+        eta: (parent, args, contextValue, info) => {
+            const etaForNextStop = parent.etas.find((eta) => eta.stop.id === args.forStopId);
+            if (!etaForNextStop) {
+                return null;
+            }
+            return etaForNextStop;
+        },
+    },
+};

package.json

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+{
+  "name": "project-inter-server",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "scripts": {
+    "compile": "npm run generate && tsc",
+    "start": "npm run compile && node ./dist/index.js",
+    "generate": "graphql-codegen --config codegen.ts"
+  },
+  "devDependencies": {
+    "@graphql-codegen/cli": "5.0.3",
+    "@graphql-codegen/typescript": "4.1.2",
+    "@graphql-codegen/typescript-resolvers": "4.4.1",
+    "@types/node": "^22.10.2",
+    "typescript": "^5.7.2"
+  },
+  "private": true,
+  "dependencies": {
+    "@apollo/server": "^4.11.2",
+    "graphql": "^16.10.0"
+  }
+}

schema.graphql

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+type Query {
+  systems: [System!]!
+  system(id: ID): System
+}
+
+type System {
+  id: ID!
+  name: String!
+  routes: [Route!]!
+  route(id: ID): Route
+  stops: [Stop!]!
+  stop(id: ID): Stop
+  shuttles: [Shuttle!]!
+  shuttle(id: ID): Shuttle
+}
+
+type Route {
+  name: String!
+  id: ID!
+  system: System!
+  orderedStops: [OrderedStop!]!
+  nextOrderedStop(forStopId: ID): OrderedStop
+  shuttles: [Shuttle!]!
+  polylineCoordinates: [Coordinates!]!
+  color: String!
+}
+
+type OrderedStop {
+  nextStop: OrderedStop
+  previousStop: OrderedStop
+  route: Route!
+  stop: Stop!
+}
+
+type Stop {
+  id: ID!
+  name: String!
+  coordinates: Coordinates!
+  system: System!
+  etas: [ETA!]!
+  orderedStops: [OrderedStop!]!
+}
+
+type Coordinates {
+  latitude: Float!
+  longitude: Float!
+}
+
+type ETA {
+  stop: Stop!
+  shuttle: Shuttle!
+  secondsRemaining: Float!
+}
+
+type Shuttle {
+  name: String!
+  id: ID!,
+  coordinates: Coordinates!
+  route: Route!
+  system: System!
+  etas: [ETA!]!
+  eta(forStopId: ID): ETA
+}

src/index.ts

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+import { readFileSync } from "fs";
+import { ApolloServer } from "@apollo/server";
+import { startStandaloneServer } from "@apollo/server/standalone";
+import { resolvers } from "./resolvers";
+
+const typeDefs = readFileSync("./schema.graphql", "utf8");
+
+interface ServerContext {
+
+}
+
+async function main() {
+  const server = new ApolloServer<ServerContext>({
+    typeDefs,
+    resolvers
+  });
+
+  const { url } = await startStandaloneServer(server, {
+    listen: {
+      port: 4000,
+    },
+    context: async ({ req, res }) => {
+      return {}
+    },
+  });
+
+  console.log(`Server ready at: ${url}`);
+}
+
+main();

src/resolvers.ts

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+import { Eta, OrderedStop, Resolvers, Route, Shuttle, Stop, System } from "./generated/graphql";
+
+// Mock data
+const systems: System[] = [
+  {
+    id: "1",
+    name: "Chapman University",
+    routes: [],
+    stops: [],
+    shuttles: [],
+  },
+];
+
+const routes: Route[] = [
+  {
+    name: "Red Route",
+    id: "1",
+    system: systems[0],
+    orderedStops: [],
+    shuttles: [],
+    polylineCoordinates: [],
+    color: "#ffffff",
+  },
+  {
+    name: "Teal Route",
+    id: "2",
+    system: systems[0],
+    orderedStops: [],
+    shuttles: [],
+    polylineCoordinates: [],
+    color: "#ffffff",
+  },
+];
+
+const stops: Stop[] = [
+  {
+    id: "1",
+    name: "Chapman Court",
+    coordinates: {
+      latitude: 33.796001,
+      longitude: -117.8892805,
+    },
+    system: systems[0],
+    etas: [],
+    orderedStops: [],
+  },
+  {
+    id: "2",
+    name: "Chapman Grand",
+    coordinates: {
+      latitude: 33.804433,
+      longitude: -117.895966,
+    },
+    system: systems[0],
+    etas: [],
+    orderedStops: [],
+  }
+];
+
+const orderedStopsForRedRoute: OrderedStop[] = [
+  {
+    route: routes[0],
+    stop: stops[0],
+  },
+  {
+    route: routes[0],
+    stop: stops[1],
+  },
+];
+
+const orderedStopsForTealRoute: OrderedStop[] = [
+  {
+    route: routes[1],
+    stop: stops[1],
+  },
+  {
+    route: routes[1],
+    stop: stops[0],
+  }
+]
+
+orderedStopsForRedRoute[0].nextStop = orderedStopsForRedRoute[1];
+orderedStopsForRedRoute[1].previousStop = orderedStopsForRedRoute[0];
+orderedStopsForTealRoute[0].nextStop = orderedStopsForTealRoute[1];
+orderedStopsForTealRoute[1].previousStop = orderedStopsForTealRoute[0];
+
+stops[0].orderedStops = [orderedStopsForRedRoute[0], orderedStopsForTealRoute[1]];
+stops[1].orderedStops = [orderedStopsForRedRoute[1], orderedStopsForTealRoute[0]];
+routes[0].orderedStops = orderedStopsForRedRoute;
+routes[1].orderedStops = orderedStopsForTealRoute;
+
+const shuttles: Shuttle[] = [
+  {
+    name: "Red Shuttle 17",
+    id: "1",
+    coordinates: {
+      latitude: 33.796001,
+      longitude: -117.8892805,
+    },
+    route: routes[0],
+    system: systems[0],
+    etas: [],
+  }
+];
+
+const etas: Eta[] = [
+  {
+    stop: stops[0],
+    shuttle: shuttles[0],
+    secondsRemaining: 12.023,
+  },
+  {
+    stop: stops[1],
+    shuttle: shuttles[0],
+    secondsRemaining: 600.123,
+  }
+];
+
+shuttles[0].etas = etas;
+
+routes[0].shuttles = shuttles;
+
+systems[0].stops = stops;
+systems[0].routes = routes;
+systems[0].shuttles = shuttles;
+
+export const resolvers: Resolvers = {
+  Query: {
+    systems: () => systems,
+    system: (parent, args, contextValue, info) => {
+      const system = systems.find((system) => system.id === args.id);
+      if (!system) {
+        return null;
+      }
+
+      return system;
+    }
+  },
+  System: {
+    stop: (parent, args, contextValue, info) => {
+      const stop = stops.find((stop) => stop.id === args.id);
+      if (!stop) {
+        return null;
+      }
+
+      return stop;
+    },
+    route: (parent, args, contextValue, info) => {
+      const route = routes.find((route) => route.id === args.id);
+      if (!route) {
+        return null;
+      }
+
+      return route;
+    },
+    shuttle: (parent, args, contextValue, info) => {
+      const shuttle = shuttles.find((shuttle) => shuttle.id === args.id);
+      if (!shuttle) {
+        return null;
+      }
+
+      return shuttle;
+    }
+  },
+  Route: {
+    nextOrderedStop: (parent, args, contextValue, info) => {
+      const orderedStop = parent.orderedStops.find((orderedStop) => orderedStop.stop.id === args.forStopId);
+      if (!orderedStop || !orderedStop.nextStop) {
+        return null;
+      }
+
+      return orderedStop.nextStop;
+    },
+  },
+  Shuttle: {
+    eta: (parent, args, contextValue, info) => {
+      const etaForNextStop = parent.etas.find((eta) => eta.stop.id === args.forStopId);
+      if (!etaForNextStop) {
+        return null;
+      }
+
+      return etaForNextStop;
+    },
+  },
+};

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2016",
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "outDir": "dist"
+  },
+  "include": ["src"]
+}