89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"strconv"
|
||
|
|
"strings"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/gin-gonic/gin"
|
||
|
|
"github.com/juju/errors"
|
||
|
|
)
|
||
|
|
|
||
|
|
// FruitIdentityParams represents the parameters that
|
||
|
|
// are required to identity a unique fruit in the market.
|
||
|
|
type FruitIdentityParams struct {
|
||
|
|
Name string `path:"name"`
|
||
|
|
APIKey string `header:"X-Api-Key" validate:"required"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// ListFruitsParams represents the parameters that can
|
||
|
|
// be used to filter the fruit's market listing.
|
||
|
|
type ListFruitsParams struct {
|
||
|
|
Origin *string `query:"origin" description:"filter by fruit origin"`
|
||
|
|
PriceMin *float64 `query:"price_min" description:"filter by minimum inclusive price" validate:"omitempty,min=1"`
|
||
|
|
PriceMax *float64 `query:"price_max" description:"filter by maximum inclusive price" validate:"omitempty,max=15"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// CreateFruit add a new fruit to the market.
|
||
|
|
func CreateFruit(c *gin.Context, fruit *Fruit) (*Fruit, error) {
|
||
|
|
market.Lock()
|
||
|
|
defer market.Unlock()
|
||
|
|
|
||
|
|
n := strings.ToLower(fruit.Name)
|
||
|
|
if _, ok := market.fruits[n]; ok {
|
||
|
|
return nil, errors.AlreadyExistsf("fruit")
|
||
|
|
}
|
||
|
|
fruit.AddedAt = time.Now()
|
||
|
|
|
||
|
|
market.fruits[n] = fruit
|
||
|
|
|
||
|
|
return fruit, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// DeleteFruit removes a fruit from the market.
|
||
|
|
func DeleteFruit(c *gin.Context, params *FruitIdentityParams) error {
|
||
|
|
if params.APIKey == "" {
|
||
|
|
return errors.Forbiddenf("invalid api key")
|
||
|
|
}
|
||
|
|
market.Lock()
|
||
|
|
defer market.Unlock()
|
||
|
|
|
||
|
|
n := strings.ToLower(params.Name)
|
||
|
|
if _, ok := market.fruits[n]; !ok {
|
||
|
|
return errors.NotFoundf("fruit")
|
||
|
|
}
|
||
|
|
delete(market.fruits, n)
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// ListFruits lists the fruits of the market.
|
||
|
|
// Parameters can be used to filter the fruits.
|
||
|
|
func ListFruits(c *gin.Context, params *ListFruitsParams) ([]*Fruit, error) {
|
||
|
|
basket := make([]*Fruit, 0)
|
||
|
|
|
||
|
|
market.Lock()
|
||
|
|
for _, f := range market.fruits {
|
||
|
|
tobasket := true
|
||
|
|
if params.Origin != nil && f.Origin != *params.Origin {
|
||
|
|
tobasket = false
|
||
|
|
}
|
||
|
|
if params.PriceMin != nil && f.Price < *params.PriceMin {
|
||
|
|
tobasket = false
|
||
|
|
}
|
||
|
|
if params.PriceMax != nil && f.Price > *params.PriceMax {
|
||
|
|
tobasket = false
|
||
|
|
}
|
||
|
|
// If all conditions validates, add the
|
||
|
|
// fruit to the returned basket.
|
||
|
|
if tobasket {
|
||
|
|
basket = append(basket, f)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
market.Unlock()
|
||
|
|
|
||
|
|
c.Header("X-Market-Listing-Size", strconv.Itoa(len(basket)))
|
||
|
|
|
||
|
|
return basket, nil
|
||
|
|
}
|