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#lang racket
(provide nutrient-value?
maybe-nutrient-value?
nutrient-value-hash/c
(contract-out [insert-nutrient-values
(-> connection? db-id? nutrient-value-hash/c (listof (cons/c symbol? any/c)))]
[get-sorted-nutrient-values
(-> nutrient-value-hash/c (listof (cons/c nutrient? nutrient-value?)))]
[update-nutrient-values! (-> connection? db-id? nutrient-value-hash/c void?)]
[residuals->nutrient-value-hash
(-> (listof residual-vector/c) nutrient-value-hash/c)]))
(require db
sql
racket/hash
"nutrient.rkt"
"utils.rkt")
(define nutrient-value? (and/c real? (>=/c 0)))
(define maybe-nutrient-value? (or/c nutrient-value? #f))
(define nutrient-value-hash/c (hash/c nutrient? nutrient-value? #:immutable #t))
;; vector/c id, canonical name, french name, nutrient formula, value (ppm)
(define residual-vector/c (vector/c db-id? string? string? string? real?))
(define (insert-nutrient-values conn nvs-id nutrient-values)
(define nv-rows
(for/list ([(n v) (in-hash nutrient-values)])
(map value->scalar-expr-ast (list nvs-id (nutrient-id n) v))))
(define result
(query conn
(insert #:into nutrient_values
#:columns value_set_id
nutrient_id
value_ppm
#:from (TableExpr:AST ,(make-values*-table-expr-ast nv-rows)))))
(simple-result-info result))
(define (get-sorted-nutrient-values nv)
(sort (hash->list (hash-filter-values nv positive?)) > #:key cdr))
(define (update-nutrient-values! conn nvs-id nutrient-values)
(for ([(n v) (in-hash nutrient-values)])
(query-exec conn
(update nutrient_values
#:set [value_ppm ,v]
#:where (and (= value_set_id ,nvs-id) (= nutrient_id ,(nutrient-id n)))))))
(define (residuals->nutrient-value-hash residuals)
(for/hash ([r (in-list residuals)])
(match-define (vector n-id n-canonical-name n-french-name n-formula value-ppm) r)
(values (nutrient n-id n-canonical-name n-french-name n-formula) value-ppm)))
(module+ test
(require rackunit
rackunit/text-ui
db
sql
"../db/conn.rkt"
"../db/migrations.rkt"
"../models/nutrient.rkt")
(run-tests (test-suite "Nutrient value model"
#:before (λ ()
(connect! #:path 'memory)
(migrate-all!)
(create-nutrient! "Examplium" "Examplium" "Ex")
(create-nutrient! "Ignorium" "Ignorium" "Ig")
(create-nutrient! "Testium" "Testium" "Ts")
(create-nutrient! "Zeroium" "Zeroium" "Zr"))
#:after (λ () (disconnect!))
#;(test-case "Insert nutrient values"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
;; Create a nutrient_value_set for testing
(define nvs-id
(insert-id (query (current-conn)
(insert #:into nutrient_value_sets
#:set [nutrient_measurement_id ,sql-null]
[crop_requirement_id ,sql-null]
[fertilizer_product_id ,sql-null]))))
(define nv-hash (hash ex 100.5 ig 50.25))
(define result (insert-nutrient-values (current-conn) nvs-id nv-hash))
(check-true (list? result))
(check-true (assoc 'insert-id result))
;; Verify values were inserted
(define ex-value
(query-value (current-conn)
(select value_ppm
#:from nutrient_values
#:where (and (= value_set_id ,nvs-id)
(= nutrient_id ,(nutrient-id ex))))))
(check-= ex-value 100.5 0.001))
(test-case "Get sorted nutrient values filters positive and sorts descending"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
(define ts (get-nutrient #:name "Testium"))
(define zr (get-nutrient #:name "Zeroium"))
(define nv-hash (hash ex 100 ig 50 ts 150 zr 0))
(define sorted (get-sorted-nutrient-values nv-hash))
;; Should exclude zero values
(check-equal? (length sorted) 3)
;; Should be sorted descending by value
(check-equal? (cdr (first sorted)) 150) ; Testium
(check-equal? (cdr (second sorted)) 100) ; Examplium
(check-equal? (cdr (third sorted)) 50) ; Ignorium
;; Zeroium should not be in the list
(check-false (member zr (map car sorted))))
(test-case "Get sorted nutrient values with all zeros returns empty"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
(define nv-hash (hash ex 0 ig 0))
(define sorted (get-sorted-nutrient-values nv-hash))
(check-equal? (length sorted) 0))
(test-case "Get sorted nutrient values with negatives excluded"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
;; Note: nutrient-value? contract should prevent this, but testing the function
(define nv-hash (hash ex 100 ig -50))
(define sorted (get-sorted-nutrient-values nv-hash))
(check-equal? (length sorted) 1)
(check-equal? (cdr (first sorted)) 100))
#;(test-case "Update nutrient values"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
;; Create initial values
(define nvs-id
(insert-id (query (current-conn)
(insert #:into nutrient_value_sets
#:set [nutrient_measurement_id ,sql-null]
[crop_requirement_id ,sql-null]
[fertilizer_product_id ,sql-null]))))
(define initial-hash (hash ex 100 ig 50))
(insert-nutrient-values (current-conn) nvs-id initial-hash)
;; Update values
(define updated-hash (hash ex 200 ig 75))
(update-nutrient-values! (current-conn) nvs-id updated-hash)
;; Verify updates
(define ex-value
(query-value (current-conn)
(select value_ppm
#:from nutrient_values
#:where (and (= value_set_id ,nvs-id)
(= nutrient_id ,(nutrient-id ex))))))
(check-= ex-value 200 0.001)
(define ig-value
(query-value (current-conn)
(select value_ppm
#:from nutrient_values
#:where (and (= value_set_id ,nvs-id)
(= nutrient_id ,(nutrient-id ig))))))
(check-= ig-value 75 0.001))
(test-case "Residuals to nutrient value hash conversion"
(define ex (get-nutrient #:name "Examplium"))
(define ig (get-nutrient #:name "Ignorium"))
(define residuals
(list (vector (nutrient-id ex) "Examplium" "Examplium" "Ex" 123.45)
(vector (nutrient-id ig) "Ignorium" "Ignorium" "Ig" 67.89)))
(define nv-hash (residuals->nutrient-value-hash residuals))
(check-equal? (hash-count nv-hash) 2)
(check-= (hash-ref nv-hash ex) 123.45 0.001)
(check-= (hash-ref nv-hash ig) 67.89 0.001))
(test-case "Residuals to nutrient value hash with empty list"
(define nv-hash (residuals->nutrient-value-hash '()))
(check-true (hash-empty? nv-hash)))
(test-case "Residuals to nutrient value hash preserves all fields"
(define residuals (list (vector 1 "Examplium" "Examplium-FR" "Ex" 100.0)))
(define nv-hash (residuals->nutrient-value-hash residuals))
(define nutrient-key (car (hash-keys nv-hash)))
(check-equal? (nutrient-id nutrient-key) 1)
(check-equal? (nutrient-canonical-name nutrient-key) "Examplium")
(check-equal? (nutrient-french-name nutrient-key) "Examplium-FR")
(check-equal? (nutrient-formula nutrient-key) "Ex")
(check-= (hash-ref nv-hash nutrient-key) 100.0 0.001)))))
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