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 OperatorController struct {
    referential *core.Referential
}

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

func (controller *OperatorController) findOperator(identifier string) (*model.Operator, bool) {
    foundStrings := idPattern.FindStringSubmatch(identifier)
    if foundStrings != nil {
        code := model.NewCode(foundStrings[1], foundStrings[2])
        return controller.referential.Model().Operators().FindByCode(code)
    }
    return controller.referential.Model().Operators().Find(model.OperatorId(identifier))
}

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

    jsonBytes, _ := json.Marshal(controller.referential.Model().Operators().FindAll())
    response.Write(jsonBytes)
}

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

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

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

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

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

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

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

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

    controller.referential.Model().Operators().Save(operator)
    jsonBytes, _ := json.Marshal(&operator)
    response.Write(jsonBytes)
}

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

    operator := controller.referential.Model().Operators().New()

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

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

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

    controller.referential.Model().Operators().Save(operator)
    jsonBytes, _ := json.Marshal(&operator)
    response.Write(jsonBytes)
}