# rithik-hyperloop69/ecommerce-order-management architecture

> Architecture diagram of the GitHub repository rithik-hyperloop69/ecommerce-order-management, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-06-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/rithik-hyperloop69/ecommerce-order-management
- Repository: https://github.com/rithik-hyperloop69/ecommerce-order-management

## Overview

1. **Project shape**
   - This repo is a single-binary C application: one source file (`FINAL_PROJECT.c`), one generated data file (`orders.txt`), and one compiled executable (`FINAL_PROJECT.exe`).
   - There are no separate packages, services, or libraries visible in the repo; the architecture is intentionally monolithic.

2. **Primary runtime**
   - The system runs as a terminal/console program on Windows, Linux, or macOS.
   - It is interactive and menu-driven: the user drives all workflows through standard input/output.

3. **Core subsystem: order management**
   - The main domain entity is an `Order` record with fields for ID, customer name, product, quantity, price, and status.
   - The application centers on CRUD-like operations, but with no delete path: add, list, search, update, save, and load.

4. **In-memory state**
   - Orders are held in a fixed-size in-memory array, limited to 100 records.
   - This array is the authoritative working set during a session; all display/search/update operations read from it.

5. **User interface boundary**
   - The console menu is the presentation layer.
   - It collects user commands and record fields, then hands them to the order logic; there is no GUI or web/API layer.

6. **Validation and business rules**
   - Input validation is part of the business logic layer, not just formatting.
   - The repo enforces unique numeric IDs, alphabetic customer names, constrained product names, integer quantity, decimal price, and an allowed status set: Pending, Shipped, Delivered, Cancelled.

7. **Search and update flow**
   - Search is ID-based and retrieves a matching order from the in-memory array.
   - Update follows a locate-then-replace pattern: the ID selects the record, then the full record is re-entered and overwritten in memory.

8. **Persistence boundary**
   - Persistence is file-based and uses `orders.txt` as a lightweight backing store.
   - The file is pipe-delimited, which makes it easy for the program to parse and rewrite without a database.

9. **Startup and shutdown data flow**
   - On startup, the program loads saved orders from `orders.txt` into memory.
   - During the session, changes remain in memory until the user explicitly saves them; exit does not imply automatic persistence unless save/load behavior in the source does so before termination.

10. **External dependencies and infrastructure**
   - There are no external services, databases, or network calls.
   - The only infrastructure dependency is a local filesystem for reading and writing `orders.txt`, plus a C compiler/runtime for building and running the app.

11. **Architectural style**
   - The repo follows a classic single-file procedural design: menu dispatch, validation, record manipulation, and file I/O are all colocated in one program.
   - For diagramming, the important boundaries are: user terminal, in-memory order store, and local text file persistence.

Main entry points: [`FINAL_PROJECT.c`](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c) (Menu Flow), [`FINAL_PROJECT.exe`](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.exe) (Executable), [`orders.txt`](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/orders.txt) (orders.txt)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["Application"]
  node_cli["Console Menu<br/>ui<br/>[FINAL_PROJECT.c]"]
  node_dispatch{{"Menu Flow<br/>control<br/>[FINAL_PROJECT.c]"}}
  node_validate{{"Validation<br/>rules<br/>[FINAL_PROJECT.c]"}}
  node_orders["Order Logic<br/>domain<br/>[FINAL_PROJECT.c]"]
  node_store[("Order Array<br/>memory<br/>[FINAL_PROJECT.c]")]
  node_search{{"Lookup<br/>query<br/>[FINAL_PROJECT.c]"}}
  node_update{{"Update Flow<br/>mutation<br/>[FINAL_PROJECT.c]"}}
  node_persist["File I/O<br/>storage<br/>[FINAL_PROJECT.c]"]
end

node_user(("User<br/>actor"))
node_file["orders.txt<br/>data file<br/>[orders.txt]"]
node_binary["Executable<br/>build artifact<br/>[FINAL_PROJECT.exe]"]

node_user -->|"enters commands"| node_cli
node_cli -->|"routes choice"| node_dispatch
node_dispatch -->|"checks input"| node_validate
node_dispatch -->|"executes action"| node_orders
node_orders -->|"reads/writes"| node_store
node_orders -->|"locates record"| node_search
node_search -->|"scans array"| node_store
node_orders -->|"replaces record"| node_update
node_update -->|"overwrites entry"| node_store
node_dispatch -->|"load/save"| node_persist
node_persist -->|"reads/writes"| node_file
node_persist -->|"syncs data"| node_store
node_binary -.->|"runs"| node_cli

click node_cli "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_dispatch "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_validate "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_orders "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_store "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_search "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_update "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_persist "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c"
click node_file "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/orders.txt"
click node_binary "https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.exe"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_cli,node_dispatch,node_validate,node_orders,node_store,node_search,node_update,node_persist toneBlue
class node_user,node_file,node_binary toneNeutral
```

## Components

### Application

Single-binary console program

- [Console Menu](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): ui · Terminal-based command and prompt interface · `FINAL_PROJECT.c`
- [Menu Flow](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): control · Routes choices into add, list, search, update, save, and load actions · `FINAL_PROJECT.c`
- [Validation](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): rules · Checks IDs, names, quantities, prices, and allowed status values · `FINAL_PROJECT.c`
- [Order Logic](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): domain · Creates, searches, updates, and displays order records · `FINAL_PROJECT.c`
- [Order Array](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): memory · Fixed-size in-memory working set of up to 100 orders · `FINAL_PROJECT.c`
- [Lookup](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): query · Finds an order by numeric ID before display or update · `FINAL_PROJECT.c`
- [Update Flow](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): mutation · Re-enters a record and overwrites the matching order in memory · `FINAL_PROJECT.c`
- [File I/O](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.c): storage · Loads and saves pipe-delimited order data · `FINAL_PROJECT.c`

### Other components

- **User**: actor · Drives the program through the console menu
- [orders.txt](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/orders.txt): data file · Local text backing store for persisted orders · `orders.txt`
- [Executable](https://github.com/rithik-hyperloop69/ecommerce-order-management/blob/main/FINAL_PROJECT.exe): build artifact · Compiled console program · `FINAL_PROJECT.exe`

## Connections

- User → Console Menu: enters commands · Interactive session via standard input/output
- Console Menu → Menu Flow: routes choice · Menu selection is dispatched to a workflow
- Menu Flow → Validation: checks input · Collects and validates record fields
- Menu Flow → Order Logic: executes action · Invokes add, list, search, update, save, and load behavior
- Order Logic → Order Array: reads/writes · Operates on the in-memory order array
- Order Logic → Lookup: locates record · Search uses the order ID to find a matching entry
- Lookup → Order Array: scans array · Searches the fixed-size working set
- Order Logic → Update Flow: replaces record · Update rewrites the located order in memory
- Update Flow → Order Array: overwrites entry · Stores the revised record back into the array
- Menu Flow → File I/O: load/save · Triggers startup load and explicit save operations
- File I/O → orders.txt: reads/writes · Uses the local pipe-delimited text file
- File I/O → Order Array: syncs data · Loads orders into memory and writes memory back to disk
- Executable → Console Menu: runs · Compiled artifact launches the console application