handlers.rkt


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#lang racket

(provide production-dispatch
         fapg-url)

(require web-server/dispatch
         web-server/http
         web-server/formlets
         "authentication.rkt"
         "views.rkt"
         "formlets.rkt"
         "models/user.rkt"
         "models/nutrient-measurement.rkt"
         "models/crop.rkt"
         "models/crop-requirement.rkt"
         "models/crop-rotation.rkt"
         "models/fertilizer-product.rkt"
         "services/nnls.rkt")

(define (production-dispatch)
  (make-auth-dispatch fapg-dispatch))

(define-values (fapg-dispatch fapg-url)
  (dispatch-rules
   [("index") #:method "get" index]
   ;; Ferti
   [("ferti" "index") #:method "get" ferti-index]
   [("ferti" "measurements-and-rotations") #:method "get" ferti-measurements-and-rotations]
   [("ferti" "recipes" (string-arg)) #:method "get" ferti-recipe]
   [("ferti" "fertilizers") #:method "get" ferti-fertilizers]
   [("ferti" "crop-requirements") #:method "get" ferti-crop-requirements]
   ;; Nutrient measurements
   [("ferti" "measurements" "new") #:method "get" new-measurement]
   [("ferti" "measurements" "create") #:method "post" create-measurement]
   [("ferti" "measurements" (integer-arg)) #:method "get" show-measurement]
   [("ferti" "measurements" (integer-arg) "edit") #:method "get" edit-measurement]
   [("ferti" "measurements" "update") #:method "post" update-measurement]
   [("ferti" "measurements" (integer-arg) "destroy") #:method "get" destroy-measurement]
   ;; Crops
   [("ferti" "crops" "new") #:method "get" new-crop]
   [("ferti" "crops" "create") #:method "post" create-crop]
   [("ferti" "crops" (integer-arg)) #:method "get" show-crop]
   [("ferti" "crops" (integer-arg) "edit") #:method "get" edit-crop]
   [("ferti" "crops" "update") #:method "post" update-crop]
   [("ferti" "crops" (integer-arg) "destroy") #:method "get" destroy-crop]
   ;; Crop rotations
   [("ferti" "rotations" "new") #:method "get" new-rotation]
   [("ferti" "rotations" "new" (string-arg)) #:method "get" new-rotation-for-date]
   [("ferti" "rotations" "create") #:method "post" create-rotation]
   [("ferti" "rotations" (integer-arg)) #:method "get" show-rotation]
   [("ferti" "rotations" (integer-arg) "destroy") #:method "get" destroy-rotation]
   ;; Fertilizer products
   [("ferti" "fertilizers" "new") #:method "get" new-fertilizer]
   [("ferti" "fertilizers" "create") #:method "post" create-fertilizer]
   [("ferti" "fertilizers" (integer-arg)) #:method "get" show-fertilizer]
   [("ferti" "fertilizers" (integer-arg) "edit") #:method "get" edit-fertilizer]
   [("ferti" "fertilizers" "update") #:method "post" update-fertilizer]
   [("ferti" "fertilizers" (integer-arg) "destroy") #:method "get" destroy-fertilizer]
   ;; Crop requirements
   [("ferti" "crop-requirements" "new") #:method "get" new-requirement]
   [("ferti" "crop-requirements" "create") #:method "post" create-requirement]
   [("ferti" "crop-requirements" (integer-arg)) #:method "get" show-requirement]
   [("ferti" "crop-requirements" (integer-arg) "edit") #:method "get" edit-requirement]
   [("ferti" "crop-requirements" "update") #:method "post" update-requirement]
   [("ferti" "crop-requirements" (integer-arg) "destroy") #:method "get" destroy-requirement]
   ;; Default
   [("") #:method "get" index]
   [else fallback]))

(define (render-page xexpr)
  (response/xexpr #:preamble #"<!DOCTYPE html>" xexpr))

;; Index

(define (index _)
  (define user (get-current-user))
  (render-page (index-page user)))

;; Ferti

(define (ferti-index _)
  (render-page (ferti-index-page)))

(define (ferti-measurements-and-rotations _)
  (define measurements (get-nutrient-measurements))
  (define rotations (get-crop-rotations))
  (render-page (ferti-measurements-and-rotations-page measurements rotations)))

(define (ferti-recipe _ date-string)
  (define ferti-recipe (find-ferti-recipe date-string))
  (render-page (ferti-recipe-page date-string ferti-recipe)))

(define (ferti-fertilizers _)
  (render-page (ferti-fertilizers-page (get-fertilizer-products))))

(define (ferti-crop-requirements _)
  (render-page (ferti-crop-requirements-page (get-crop-requirements))))

;; Nutrient measurements

(define (new-measurement _)
  (render-page (new-measurement-page)))

(define (create-measurement req)
  (define new-measurement (formlet-process (measurements-formlet) req))
  (if (get-nutrient-measurement #:date (nutrient-measurement-date new-measurement))
      (update-nutrient-measurement! new-measurement)
      (create-nutrient-measurement! new-measurement))
  (redirect-to "/ferti/measurements-and-rotations"))

(define (show-measurement _ id)
  (define nm (get-nutrient-measurement #:id id))
  (render-page (show-measurement-page nm)))

(define (edit-measurement _ id)
  (define nm (get-nutrient-measurement #:id id))
  (render-page (edit-measurement-page nm)))

(define (update-measurement req)
  (define edited-nutrient-measurement (formlet-process (measurements-formlet) req))
  (update-nutrient-measurement! edited-nutrient-measurement)
  (redirect-to "/ferti/measurements-and-rotations"))

(define (destroy-measurement _ id)
  (delete-nutrient-measurement! id)
  (redirect-to "/ferti/measurements-and-rotations"))

;; Crops

(define (new-crop _)
  (render-page (new-crop-page)))

(define (create-crop req)
  (define new-crop (formlet-process (crop-formlet) req))
  (if (get-crop #:name (crop-name new-crop))
      (update-crop! new-crop)
      (create-crop! new-crop))
  (redirect-to "/ferti/crop-requirements"))

(define (show-crop _ id)
  (define crop (get-crop #:id id))
  (render-page (show-crop-page crop)))

(define (edit-crop _ id)
  (define crop (get-crop #:id id))
  (render-page (edit-crop-page crop)))

(define (update-crop req)
  (define edited-crop (formlet-process (crop-formlet) req))
  (update-crop! edited-crop)
  (redirect-to "/ferti/crop-requirements"))

(define (destroy-crop _ id)
  (delete-crop! id)
  (redirect-to "/ferti/crop-requirements"))

;; Crop rotations

(define (new-rotation _)
  (render-page (new-rotation-page)))

(define (new-rotation-for-date _ date-string)
  (render-page (new-rotation-page #:date date-string)))

(define (create-rotation req)
  (define-values (rotation-date req-proportions) (formlet-process (rotation-formlet) req))
  (create-crop-rotation! rotation-date req-proportions)
  (redirect-to "/ferti/measurements-and-rotations"))

(define (show-rotation _ id)
  (define cr (get-crop-rotation #:id id))
  (render-page (show-rotation-page cr)))

(define (destroy-rotation _ id)
  (delete-crop-rotation! id)
  (redirect-to "/ferti/measurements-and-rotations"))

;; Fertilizer products

(define (new-fertilizer _)
  (render-page (new-fertilizer-page)))

(define (create-fertilizer req)
  (define new-fertilizer (formlet-process (fertilizer-formlet) req))
  (create-fertilizer-product! new-fertilizer)
  (redirect-to "/ferti/fertilizers"))

(define (show-fertilizer _ id)
  (define fp (get-fertilizer-product #:id id))
  (render-page (show-fertilizer-page fp)))

(define (edit-fertilizer _ id)
  (define fp (get-fertilizer-product #:id id))
  (render-page (edit-fertilizer-page fp)))

(define (update-fertilizer req)
  (define edited-fertilizer-product (formlet-process (fertilizer-formlet) req))
  (update-fertilizer-product! edited-fertilizer-product)
  (redirect-to "/ferti/fertilizers"))

(define (destroy-fertilizer _ id)
  (delete-fertilizer-product! id)
  (redirect-to "/ferti/fertilizers"))

;; Crop requirements

(define (new-requirement _)
  (render-page (new-crop-requirement-page)))

(define (create-requirement req)
  (define new-requirement (formlet-process (crop-requirements-formlet) req))
  (if (get-crop-requirement #:profile (crop-requirement-profile new-requirement))
      (update-crop-requirement! new-requirement)
      (create-crop-requirement! new-requirement))
  (redirect-to "/ferti/crop-requirements"))

(define (show-requirement _ id)
  (define cr (get-crop-requirement #:id id))
  (render-page (show-crop-requirement-page cr)))

(define (edit-requirement _ id)
  (define cr (get-crop-requirement #:id id))
  (render-page (edit-crop-requirement-page cr)))

(define (update-requirement req)
  (define edited-nutrient-requirement (formlet-process (crop-requirements-formlet) req))
  (update-crop-requirement! edited-nutrient-requirement)
  (redirect-to "/ferti/crop-requirements"))

(define (destroy-requirement _ id)
  (delete-crop-requirement! id)
  (redirect-to "/ferti/crop-requirements"))

;; Fallback

(define (fallback _)
  (render-page (fallback-page 404)))