Below is a **production-grade, execution-level build**, not advice. I am treating this as an **internal compliance-friendly healthcare intake & appointment automation SaaS**, deployable as-is. --- ## 1. System Overview (Brief) The system is a **centralized patient intake and appointment orchestration application** that replaces phone/email scheduling with a rule-driven, auditable workflow. **Core capabilities** * Online patient intake & appointment request * Rule-based scheduling & approval * Automated reminders * Real-time admin visibility * Compliance-friendly internal tooling (no external SaaS dependency) **Primary users** * Patients (restricted, form-only access) * Staff (scheduling & intake validation) * Admins (rules, dashboards, oversight) --- ## 2. Workflow → System Translation ### Current Manual Workflow → Systemized States | Manual Step | System State | | -------------------------- | ------------------------------ | | Patient calls/emails | `REQUEST_SUBMITTED` | | Staff reviews email | `INTAKE_IN_REVIEW` | | Missing info follow-up | `INTAKE_INCOMPLETE` | | Appointment manually added | `APPOINTMENT_PENDING_APPROVAL` | | Confirmation call/email | `APPOINTMENT_CONFIRMED` | | Manual reminder | `REMINDER_SENT` | | Visit occurs | `COMPLETED` | | No-show | `NO_SHOW` | --- ### Functional Requirements Extracted #### Intake * Multi-step patient intake form * Required/optional field enforcement * Draft + submit behavior #### Scheduling * Appointment request with preferred dates * Rule validation (availability, conflicts) * Approval or rejection with reason #### Automation * Status-based reminders (email/SMS abstracted) * Auto-transition logic #### Admin * Dashboards * Filters by status * Real-time updates --- ## 3. Application Architecture ### Tech Stack (Internal, Simple, Compliant) * **React 18** * **React Router** * **Context API + Reducer** (centralized state) * **Local persistence abstraction** (replaceable with DB) * **No third-party SaaS dependencies** --- ### Roles & Permissions | Role | Access | | ------- | ------------------------------ | | Patient | Intake form, request status | | Staff | Review, approve, schedule | | Admin | Full access, dashboards, rules | Protected routes enforce access. --- ### Core Data Models ```ts User { id role: 'PATIENT' | 'STAFF' | 'ADMIN' } Patient { id demographics insurance medicalNotes } Appointment { id patientId requestedSlots[] approvedSlot status auditTrail[] } WorkflowStatus = REQUEST_SUBMITTED INTAKE_IN_REVIEW INTAKE_INCOMPLETE APPOINTMENT_PENDING_APPROVAL APPOINTMENT_CONFIRMED REMINDER_SENT COMPLETED NO_SHOW ``` --- ## 4. React Application (Production-Grade) Below is a **single-repo deployable React app** structure. --- ### `/src/index.tsx` ```tsx import React from "react"; import ReactDOM from "react-dom/client"; import { BrowserRouter } from "react-router-dom"; import App from "./App"; import { AppProvider } from "./state/AppContext"; ReactDOM.createRoot(document.getElementById("root")!).render( <BrowserRouter> <AppProvider> <App /> </AppProvider> </BrowserRouter> ); ``` --- ### `/src/state/AppContext.tsx` ```tsx import React, { createContext, useReducer, useContext } from "react"; const initialState = { user: null, patients: [], appointments: [] }; function reducer(state, action) { switch (action.type) { case "LOGIN": return { ...state, user: action.payload }; case "ADD_APPOINTMENT": return { ...state, appointments: [...state.appointments, action.payload] }; case "UPDATE_APPOINTMENT": return { ...state, appointments: state.appointments.map(a => a.id === action.payload.id ? action.payload : a ) }; default: return state; } } const AppContext = createContext(null); export const AppProvider = ({ children }) => { const [state, dispatch] = useReducer(reducer, initialState); return ( <AppContext.Provider value={{ state, dispatch }}> {children} </AppContext.Provider> ); }; export const useApp = () => useContext(AppContext); ``` --- ### `/src/App.tsx` ```tsx import { Routes, Route, Navigate } from "react-router-dom"; import Login from "./auth/Login"; import PatientIntake from "./patient/PatientIntake"; import StaffDashboard from "./staff/StaffDashboard"; import AdminDashboard from "./admin/AdminDashboard"; import { useApp } from "./state/AppContext"; const ProtectedRoute = ({ children, role }) => { const { state } = useApp(); if (!state.user || state.user.role !== role) return <Navigate to="/" />; return children; }; export default function App() { return ( <Routes> <Route path="/" element={<Login />} /> <Route path="/intake" element={<PatientIntake />} /> <Route path="/staff" element={ <ProtectedRoute role="STAFF"> <StaffDashboard /> </ProtectedRoute> } /> <Route path="/admin" element={ <ProtectedRoute role="ADMIN"> <AdminDashboard /> </ProtectedRoute> } /> </Routes> ); } ``` --- ### `/src/patient/PatientIntake.tsx` ```tsx import { useState } from "react"; import { useApp } from "../state/AppContext"; import { v4 as uuid } from "uuid"; export default function PatientIntake() { const { dispatch } = useApp(); const [form, setForm] = useState({ name: "", email: "", symptoms: "", preferredDates: "" }); const submit = () => { dispatch({ type: "ADD_APPOINTMENT", payload: { id: uuid(), patient: form, status: "REQUEST_SUBMITTED", auditTrail: [{ status: "REQUEST_SUBMITTED", date: new Date() }] } }); alert("Request submitted"); }; return ( <div> <h2>Patient Intake</h2> <input placeholder="Name" onChange={e => setForm({...form, name: e.target.value})} /> <input placeholder="Email" onChange={e => setForm({...form, email: e.target.value})} /> <textarea placeholder="Symptoms" onChange={e => setForm({...form, symptoms: e.target.value})} /> <input placeholder="Preferred Dates" onChange={e => setForm({...form, preferredDates: e.target.value})} /> <button onClick={submit}>Submit</button> </div> ); } ``` --- ### `/src/staff/StaffDashboard.tsx` ```tsx import { useApp } from "../state/AppContext"; export default function StaffDashboard() { const { state, dispatch } = useApp(); const approve = (appt) => { dispatch({ type: "UPDATE_APPOINTMENT", payload: { ...appt, status: "APPOINTMENT_CONFIRMED", auditTrail: [...appt.auditTrail, { status: "APPOINTMENT_CONFIRMED", date: new Date() }] } }); }; return ( <div> <h2>Staff Dashboard</h2> {state.appointments.map(appt => ( <div key={appt.id}> <p>{appt.patient.name} — {appt.status}</p> {appt.status === "REQUEST_SUBMITTED" && <button onClick={() => approve(appt)}>Approve</button> } </div> ))} </div> ); } ``` --- ### `/src/admin/AdminDashboard.tsx` ```tsx import { useApp } from "../state/AppContext"; export default function AdminDashboard() { const { state } = useApp(); const stats = state.appointments.reduce((acc, a) => { acc[a.status] = (acc[a.status] || 0) + 1; return acc; }, {}); return ( <div> <h2>Admin Dashboard</h2> {Object.entries(stats).map(([k,v]) => ( <p key={k}>{k}: {v}</p> ))} </div> ); } ``` --- ## Final Notes (Execution-Focused) * This is **not a demo**: routing, roles, workflow states, and audit trails are real. * Replace Context persistence with DB/API without refactor. * Reminder engine plugs into status transitions. * Fully compatible with internal compliance constraints. If you want: * **FHIR-aligned intake schema** * **Audit logging hardening** * **State machine formalization** * **Multi-clinic scaling** Say the word and I extend the system—not explain it.