COTEX - Commodity Trade Exchange.

Short Description COTEX is a full‑stack commodity marketplace where Farmers list produce, Buyers purchase via fixed‑price or bidding, Logistics and Warehouses fulfill orders, and ownership is secured with transferable digital certificates. Buyers can hold inventory, relist later, or deliver immediately—COTEX orchestrates pricing, escrow, storage, routing, and title transfer in one place. Core Value - End‑to‑end trade: list → match/auction → escrow → pickup → optional warehousing → delivery or relist. - Own, hold, and resell: buyers can “Buy & Keep” (inventory on certificate) and later resell on the marketplace. - Trust at scale: verified users, quality grades, auditable milestones, and escrow‑backed payouts. Roles and What They Do - Farmer: create listings (commodity, grade, quantity, location, price/minimum bid), request pickup/storage, receive milestone payments from escrow. - Buyer: discover, buy or bid; choose “Buy & Keep” to store under a warehouse certificate; relist later and transfer certificate to the new owner. - Logistics Provider: accept jobs, capture pickup/delivery proofs, share live status; get paid automatically after POD milestones. - Warehouse: intake, grade, and issue digital certificates; earn on storage/value‑add; transfer certificates on sale and release inventory only on authorized dispatch. The Two Market Modes - Marketplace (Fixed Price): buyer checks out with transparent costs (commodity + logistics + warehousing + fee). Funds move to escrow → pickup → optional warehouse intake → delivery → acceptance → payouts. - Auction/Bidding: seller sets reserve/minimum; countdown with bid increments and anti‑sniping. Winning bid moves to escrow; fulfillment mirrors fixed‑price. Buy & Keep + Certificate Transfer - After purchase, buyer can Deliver Now or Keep in Warehouse (warehouse issues/updates certificate). - Certificate represents ownership (lot, grade, qty, location, custody chain) and travels with history. - On resale, seller lists the certificate; escrow receives funds → certificate transfers to buyer → warehouse releases only with buyer’s dispatch authorization. Fulfillment and Payments (Escrow Milestones) - Milestones: Order Created → Pickup Booked → Picked Up → Warehouse Intake (optional) → Out for Delivery → Delivered → Buyer Acceptance → Payouts. - Funds split automatically to Farmer, Logistics, Warehouse, and platform per contract. - Disputes pause release and follow an evidence‑based flow (POD photos, timestamps, grade report). Pricing, Rates, and Fees - Commodity price: seller‑set (fixed) or bid‑driven (auction). - Logistics rate: lane‑based matrix + live quote by weight/volume and distance. - Warehouse rate: intake fee + daily storage + optional services (drying, cleaning, fumigation). - Platform fee: percentage or tiered; applied on successful trades/auction close. - Secondary trade fee: reduced fee on “Buy & Keep” resales to encourage liquidity. Feature Highlights - Smart Matching (proximity, grade, reliability, price) - Auctions (reserve, increment, anti‑sniping, watchlists, bid history) - Inventory Dashboard (owned certificates, storage costs, market value, quick relist) - Routing & Tracking (driver app events, geostamps, POD media) - Analytics (price trends, bid heatmaps, storage aging, lane performance) - Notifications (email/SMS/in‑app for bids, wins, expiring storage, dispatch, acceptance) What’s Included - Polished responsive UI with: Auth (login/register/verify/forgot/reset), role onboarding; Listing creation/management; Fixed‑price Checkout and Auction flow; Buy & Keep certificate screens; Inventory/Resale to relist certificates; Logistics tracking and Warehouse intake screens. - Escrow and milestone engine with pluggable payment and messaging adapters. - Configurable fee/rate tables (logistics lanes, warehouse services, platform fees). - Documentation for setup, environment variables, and deployment. Images & Screenshots Checklist - Marketplace (search/filters), Listing details - Auction screen (timer, bid history, reserve indicator) - Checkout with cost breakdown - Buy & Keep: certificate view and inventory dashboard - Logistics tracking/POD and Warehouse intake/grading - Auth flow screens Tech Stack - Frontend: React, MUI/Tailwind, React Router, Framer Motion - Backend (example integration): Node.js/Express + MongoDB (adapters replaceable) - Messaging/Maps: email/SMS adapters; tracking/map provider stubs Installation 1. Clone client/server and install dependencies. 2. Copy .env templates; set API URLs, DB, payment, messaging, and maps keys. 3. Seed commodities/grades, logistics lanes, warehouse services, fee tables (optional). 4. Start server and client; create roles; run an end‑to‑end test (fixed‑price and auction with warehouse intake). Licensing & Notes - Payments, maps, and SMS ship as adapters—bring your credentials. - Production hardening (monitoring, rate limits, backups) is buyer’s responsibility. Support Setup help and bug fixes for packaged features. Customizations and