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#lang racket

(provide app-dispatch)

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

(define-values (app-dispatch _)
  ;; Ferti dashboard
  (dispatch-rules [("ferti") #:method "get" ferti]
                  ;; Nutrient measurements
                  [("measurement" "new") #:method "get" new-measurement]
                  [("measurement" "create") #:method "post" create-measurement]
                  [("measurement" "destroy") #:method "post" destroy-measurement]
                  ;; Nutrient targets
                  [("target" "new") #:method "get" new-target]
                  [("target" "create") #:method "post" create-target]
                  ;; Index
                  [("") #:method "get" index]
                  [else fallback]))

(define (ferti _)
  (define ferti-recipe (find-ferti-recipe))
  (define latest-measurement-hash (get-latest-nutrient-measurement-hash))
  (define latest-target-hash (get-latest-nutrient-target-hash))
  (define latest-measurements (take (get-nutrient-measurements) 10))
  (response/xexpr
   #:preamble #"<!DOCTYPE html>"
   (ferti-page ferti-recipe latest-measurement-hash latest-target-hash latest-measurements)))

(define (index _)
  (define user (get-current-user))
  (response/xexpr #:preamble #"<!DOCTYPE html>" (index-page user)))

;; Nutrient measurements

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

(define (create-measurement req)
  (define-values (measured-on measurements) (formlet-process (measurements-formlet) req))
  (create-nutrient-measurement! measured-on measurements)
  (redirect-to "/"))

(define (destroy-measurement req)
  (delete-nutrient-measurement! req)
  (redirect-to "/"))

;; Nutrient targets

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

(define (create-target req)
  (define-values (effective-on nutrient-values) (formlet-process (targets-formlet) req))
  (create-nutrient-target! effective-on nutrient-values)
  (redirect-to "/"))

(define (fallback _)
  (response/xexpr #:preamble #"<!DOCTYPE html>" (fallback-page 404)))
Copyright 2019--2026 Marius PETER