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package main
import (
"github.com/gin-gonic/gin"
"net/http"
)
func CreateApplicationRouter(applicationContext *ApplicationContext) *gin.Engine {
router := gin.New()
router.Use(gin.Logger())
router.Use(gin.Recovery())
// engine.Static("/", "./frontend/build")
router.POST("/setup", func(c *gin.Context) {
var settings struct {
Config Config `json:"config"`
Accounts gin.Accounts `json:"accounts"`
}
if err := c.ShouldBindJSON(&settings); err != nil {
badRequest(c, err)
return
}
applicationContext.SetConfig(settings.Config)
applicationContext.SetAccounts(settings.Accounts)
c.JSON(http.StatusAccepted, gin.H{})
})
api := router.Group("/api")
api.Use(SetupRequiredMiddleware(applicationContext))
api.Use(AuthRequiredMiddleware(applicationContext))
{
api.GET("/rules", func(c *gin.Context) {
success(c, applicationContext.RulesManager.GetRules())
})
api.POST("/rules", func(c *gin.Context) {
var rule Rule
if err := c.ShouldBindJSON(&rule); err != nil {
badRequest(c, err)
return
}
if id, err := applicationContext.RulesManager.AddRule(c, rule); err != nil {
unprocessableEntity(c, err)
} else {
success(c, UnorderedDocument{"id": id})
}
})
api.GET("/rules/:id", func(c *gin.Context) {
hex := c.Param("id")
id, err := RowIDFromHex(hex)
if err != nil {
badRequest(c, err)
return
}
rule, found := applicationContext.RulesManager.GetRule(id)
if !found {
notFound(c, UnorderedDocument{"id": id})
} else {
success(c, rule)
}
})
api.PUT("/rules/:id", func(c *gin.Context) {
hex := c.Param("id")
id, err := RowIDFromHex(hex)
if err != nil {
badRequest(c, err)
return
}
var rule Rule
if err := c.ShouldBindJSON(&rule); err != nil {
badRequest(c, err)
return
}
updated, err := applicationContext.RulesManager.UpdateRule(c, id, rule)
if err != nil {
badRequest(c, err)
} else if !updated {
notFound(c, UnorderedDocument{"id": id})
} else {
success(c, rule)
}
})
}
return router
}
func SetupRequiredMiddleware(applicationContext *ApplicationContext) gin.HandlerFunc {
return func(c *gin.Context) {
if !applicationContext.IsConfigured {
c.AbortWithStatusJSON(http.StatusServiceUnavailable, gin.H{
"error": "setup required",
"url": c.Request.Host + "/setup",
})
} else {
c.Next()
}
}
}
func AuthRequiredMiddleware(applicationContext *ApplicationContext) gin.HandlerFunc {
return func(c *gin.Context) {
if !applicationContext.Config.AuthRequired {
c.Next()
return
}
gin.BasicAuth(applicationContext.Accounts)(c)
}
}
func success(c *gin.Context, obj interface{}) {
c.JSON(http.StatusOK, obj)
}
func badRequest(c *gin.Context, err error) {
c.JSON(http.StatusBadRequest, UnorderedDocument{"result": "error", "error": err.Error()})
//validationErrors, ok := err.(validator.ValidationErrors)
//if !ok {
// log.WithError(err).WithField("rule", rule).Error("oops")
// c.JSON(http.StatusBadRequest, gin.H{})
// return
//}
//
//for _, fieldErr := range validationErrors {
// log.Println(fieldErr)
// c.JSON(http.StatusBadRequest, gin.H{
// "error": fmt.Sprintf("field '%v' does not respect the %v(%v) rule",
// fieldErr.Field(), fieldErr.Tag(), fieldErr.Param()),
// })
// log.WithError(err).WithField("rule", rule).Error("oops")
// return // exit on first error
//}
}
func unprocessableEntity(c *gin.Context, err error) {
c.JSON(http.StatusUnprocessableEntity, UnorderedDocument{"result": "error", "error": err.Error()})
}
func notFound(c *gin.Context, obj interface{}) {
c.JSON(http.StatusNotFound, obj)
}
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