af83/edwig

package api

import (
    "encoding/json"
    "fmt"
    "net/http"
    "net/url"

    "bitbucket.org/enroute-mobi/ara/core"
    "bitbucket.org/enroute-mobi/ara/logger"
    "bitbucket.org/enroute-mobi/ara/model"
)

type VehicleController struct {
    referential *core.Referential
}

func NewVehicleController(referential *core.Referential) ControllerInterface {
    return &Controller{
        restfulResource: &VehicleController{
            referential: referential,
        },
    }
}

func (controller *VehicleController) findVehicle(identifier string) (*model.Vehicle, bool) {
    foundStrings := idPattern.FindStringSubmatch(identifier)
    if foundStrings != nil {
        code := model.NewCode(foundStrings[1], foundStrings[2])
        return controller.referential.Model().Vehicles().FindByCode(code)
    }
    return controller.referential.Model().Vehicles().Find(model.VehicleId(identifier))
}

func (controller *VehicleController) Index(response http.ResponseWriter, filters url.Values) {
    logger.Log.Debugf("Vehicles Index")

    stime := controller.referential.Clock().Now()
    vehicles := controller.referential.Model().Vehicles().FindAll()
    logger.Log.Debugf("VehicleController FindAll time : %v", controller.referential.Clock().Since(stime))
    stime = controller.referential.Clock().Now()
    jsonBytes, _ := json.Marshal(vehicles)
    logger.Log.Debugf("VehicleController Json Marshal time : %v ", controller.referential.Clock().Since(stime))
    response.Write(jsonBytes)
}

func (controller *VehicleController) Show(response http.ResponseWriter, identifier string) {
    vehicle, ok := controller.findVehicle(identifier)
    if !ok {
        http.Error(response, fmt.Sprintf("Vehicle not found: %s", identifier), http.StatusNotFound)
        return
    }
    logger.Log.Debugf("Get vehicle %s", identifier)

    jsonBytes, _ := vehicle.MarshalJSON()
    response.Write(jsonBytes)
}

func (controller *VehicleController) Delete(response http.ResponseWriter, identifier string) {
    vehicle, ok := controller.findVehicle(identifier)
    if !ok {
        http.Error(response, fmt.Sprintf("Vehicle not found: %s", identifier), http.StatusNotFound)
        return
    }
    logger.Log.Debugf("Delete vehicle %s", identifier)

    jsonBytes, _ := vehicle.MarshalJSON()
    controller.referential.Model().Vehicles().Delete(vehicle)
    response.Write(jsonBytes)
}

func (controller *VehicleController) Update(response http.ResponseWriter, identifier string, body []byte) {
    vehicle, ok := controller.findVehicle(identifier)
    if !ok {
        http.Error(response, fmt.Sprintf("Vehicle not found: %s", identifier), http.StatusNotFound)
        return
    }

    logger.Log.Debugf("Update vehicle %s: %s", identifier, string(body))

    err := json.Unmarshal(body, &vehicle)
    if err != nil {
        http.Error(response, fmt.Sprintf("Invalid request: can't parse request body: %v", err), http.StatusBadRequest)
        return
    }

    for _, obj := range vehicle.Codes() {
        v, ok := controller.referential.Model().Vehicles().FindByCode(obj)
        if ok && v.Id() != vehicle.Id() {
            http.Error(response, fmt.Sprintf("Invalid request: vehicle %v already have a code %v", v.Id(), obj.String()), http.StatusBadRequest)
            return
        }
    }

    controller.referential.Model().Vehicles().Save(vehicle)
    jsonBytes, _ := vehicle.MarshalJSON()
    response.Write(jsonBytes)
}

func (controller *VehicleController) Create(response http.ResponseWriter, body []byte) {
    logger.Log.Debugf("Create vehicle: %s", string(body))

    vehicle := controller.referential.Model().Vehicles().New()

    err := json.Unmarshal(body, &vehicle)
    if err != nil {
        http.Error(response, fmt.Sprintf("Invalid request: can't parse request body: %v", err), http.StatusBadRequest)
        return
    }

    if vehicle.Id() != "" {
        http.Error(response, "Invalid request", http.StatusBadRequest)
        return
    }

    for _, obj := range vehicle.Codes() {
        v, ok := controller.referential.Model().Vehicles().FindByCode(obj)
        if ok {
            http.Error(response, fmt.Sprintf("Invalid request: vehicle %v already have a code %v", v.Id(), obj.String()), http.StatusBadRequest)
            return
        }
    }

    controller.referential.Model().Vehicles().Save(vehicle)
    jsonBytes, _ := vehicle.MarshalJSON()
    response.Write(jsonBytes)
}