# API Documentation
## /accounts/ -- Account related API
* **create/employee -- POST**

    Params : string name (required)
    return : EmployeeModel {
        name : string,
        stars : number,
        currentOrder : enum {'free', 'busy'}   
    }

Function : Create an employee account and save it on the database. Return the formed account.

* **create/customer -- POST**

    Params : string name(required)
    return : CustomerModel {
        name : string,
        status : enum {'accepted', 'active', 'inactive'}
    }

Function : Create a customer account and return the formed account.

* **create/store -- POST**

    Params: string name (required),
            Number latitude (required),
            Number longitude (required)
    return : StoreModel {
        name : string,
        stars : Number,
        latitude : Number,
        longitude : Number
    }

Function : Create a store and saved it on the database. Return the formed account.

## /customer/ Customer API
* **create -- POST**

    Params: string customerId (required),
            string district (required),
            customerList: [Schema({}, strict: false)] customerList (required)
    return: {
        success : true,
        data : CustomerOrder{
            customerId : string,
            district : string,
            employeeTargetPrice : number (not required),
            customerPrice: Number,
            customerList: [Schema({}, strict: false)],
            status : Enum {'created', 'batched', 'accepted', 'solved'}
        }
    }

Function : Create an order and save it on the database and return a success result with the order formed. (Internal function) If the current number of orders exceed the threshold, it will complile and createOrder for the employee to accept.

## /employee/ Employee API
* **order -- GET**

    Params : string employeeID (required)
    Return : EmployeeOrder{
        employeeId : string (not required),
        district : string,
        batchOrderIds : string[],
        employeeTargetPrice : Number(not required),
        employeeList : [Schema({}, {strict: false})],
        status : enum {'created', 'accepted', 'solved'}
    }

Function : Return an accepted order when called, and updating the status of both Employee, Customer and CustomerOrder according to the accepted EmployeeOrder

* **add -- POST**

    Params: [new Schema({}, {strict: false})] employeeList,
            Number orderID
    return: CustomerOrder {
        customerId : string,
        district: string,
        employeeTargetPrice : Number (not required),
        customerPrice : optionsNumber,
        customerList : [Schema({}, {strict: false})],
        status : {'created', 'batched', 'accepted', 'solved'}   
    }

Function : Update the price in the current employeeOrder and returns the pre-updated customerOrder

* **solve -- POST**

    Params : string orderId,
    return : CustomerOrder{
            customerId : string,
            district : string,
            employeeTargetPrice : number (not required),
            customerPrice: Number,
            customerList: [Schema({}, strict: false)],
            status : Enum {'created', 'batched', 'accepted', 'solved'}
        }

Function : Update the specific customerOrder with orderID to be completed, and return the updated customerOrder.

## /feedback/ Feedback API
* **create -- POST**

    Params: string customerId,
            string target,
            Number stars,
            string type {'employee', 'item'}
    return: FeedbackModel {
            customerId : string,
            target: string,
            stars: Number
    }
            

Function : Create and save a Feedback provided on the employee/ item depending on the params type. Returns the FeedbackModel

important Links
--
https://authentication-backend-e6621-default-rtdb.firebaseio.com/ (user authentication)

https://identitytoolkit.googleapis.com/v1/accounts:signInWithCustomToken?key=AIzaSyDUC1KqseroLQTj2Iz0p-k2l9UmHNEJFPg (generate token)