feat: Implement Phase 6 Shopping and Checkout

- Introduced authenticated shopping state and atomic checkout process without creating orders or payments. - Reused existing components from previous phases including identities, addresses, catalogues, pricing, and inventory. - Developed cart architecture to support one active cart per user with unique items per variant. - Implemented dynamic cart pricing with various precedence rules for promotions and coupons. - Created a wishlist feature that exposes only visible active products without reserving inventory. - Integrated inventory validation to ensure availability of items before adding to cart. - Developed a checkout architecture that locks the cart, revalidates pricing and shipping, and reserves inventory. - Added shipping zones, methods, and rates with configurable options for international shipping and duty/tax boundaries. - Implemented checkout snapshots to capture immutable checkout details. - Introduced idempotency for checkout requests to prevent duplicate processing. - Added functionality for coupon integration and business checkout validation. - Established permissions for managing shipping zones, methods, and rates. - Created comprehensive unit tests covering various aspects of the shopping and checkout processes. - Added cron job for handling checkout expiry reconciliation. - Created migration script to set up new database tables and constraints for carts, checkout sessions, and shipping.
2026-09-03 23:45:01 +05:30
parent 5643d89236
commit ad9287b804
33 changed files with 187 additions and 10 deletions
@@ -0,0 +1 @@
+module.exports=(s,D)=>{const M=s.define("Cart",{id:{type:D.STRING,primaryKey:true},user_id:{type:D.STRING,allowNull:false},status:{type:D.ENUM("ACTIVE","CHECKOUT_LOCKED","CONVERTED","ABANDONED"),allowNull:false,defaultValue:"ACTIVE"},currency:{type:D.STRING(3),allowNull:false,defaultValue:"LKR"},coupon_code:D.STRING(50),version:{type:D.INTEGER,allowNull:false,defaultValue:0},expires_at:D.DATE},{tableName:"carts",timestamps:true,indexes:[{unique:true,fields:["user_id","status"]}]});M.associate=db=>{M.hasMany(db.CartItem,{foreignKey:"cart_id",as:"items"});M.belongsTo(db.User,{foreignKey:"user_id",as:"owner"});};return M;};
				`@@ -0,0 +1 @@`
				module.exports=(s,D)=>{const M=s.define("Cart",{id:{type:D.STRING,primaryKey:true},user_id:{type:D.STRING,allowNull:false},status:{type:D.ENUM("ACTIVE","CHECKOUT_LOCKED","CONVERTED","ABANDONED"),allowNull:false,defaultValue:"ACTIVE"},currency:{type:D.STRING(3),allowNull:false,defaultValue:"LKR"},coupon_code:D.STRING(50),version:{type:D.INTEGER,allowNull:false,defaultValue:0},expires_at:D.DATE},{tableName:"carts",timestamps:true,indexes:[{unique:true,fields:["user_id","status"]}]});M.associate=db=>{M.hasMany(db.CartItem,{foreignKey:"cart_id",as:"items"});M.belongsTo(db.User,{foreignKey:"user_id",as:"owner"});};return M;};