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import { ChevronLeftIcon, PlusIcon, TrashIcon } from '@heroicons/react/24/outline'
import { createPortal } from 'react-dom'
import { Link, Navigate, useBlocker, useLocation, useNavigate, useParams } from 'react-router-dom'
import { useTranslation } from 'react-i18next'
import type { components } from '../api'
import { useRecipeGeneration } from '../recipeGeneration'
import { AutoTextarea } from '../components/AutoTextarea'
import { Button } from '../components/Button'
import { errorMessage } from '../apiError'
import { SessionExpiredError, useApi } from '../useApi'
type Recipe = components['schemas']['RecipeInput'] & { id?: number }
type RecipeInput = components['schemas']['RecipeInput']
type RecipeCreated = components['schemas']['RecipeCreated']
// Editable mirror of a recipe: every field is a string so the inputs stay controlled
// while the user types (e.g. a half-entered number), and is parsed back on save.
type IngredientDraft = { quantity: string; unit: string; name: string }
type RecipeDraft = {
title: string
portions: string
ingredients: IngredientDraft[]
instructions: string[]
nutrients: { calories: string; protein: string; fat: string; carbs: string }
}
const NUTRIENTS = [
{ key: 'calories', labelKey: 'recipe.caloriesLabel', unit: 'kcal' },
{ key: 'protein', labelKey: 'recipe.proteinLabel', unit: 'g' },
{ key: 'fat', labelKey: 'recipe.fatLabel', unit: 'g' },
{ key: 'carbs', labelKey: 'recipe.carbsLabel', unit: 'g' },
] as const
const numToStr = (n: number | null | undefined) => (n != null ? String(n) : '')
const isInvalidCount = (s: string) => !(Number.parseFloat(s) >= 0.5)
const isBlankIngredient = (ing: IngredientDraft) =>
ing.name.trim() === '' && ing.unit.trim() === '' && ing.quantity.trim() === ''
function toDraft(recipe: Recipe): RecipeDraft {
return {
title: recipe.title,
portions: numToStr(recipe.portions),
ingredients: recipe.ingredients.map((ing) => ({
quantity: numToStr(ing.quantity),
unit: ing.unit ?? '',
name: ing.name ?? '',
})),
instructions: [...recipe.instructions],
nutrients: {
calories: numToStr(recipe.nutrients?.calories),
protein: numToStr(recipe.nutrients?.protein),
fat: numToStr(recipe.nutrients?.fat),
carbs: numToStr(recipe.nutrients?.carbs),
},
}
}
const toInt = (s: string) => Math.round(Number.parseFloat(s))
// Parse a validated draft into a RecipeInput payload: drop fully-blank rows, coerce numbers.
function buildRecipeInput(draft: RecipeDraft): RecipeInput {
const ingredients = draft.ingredients
.filter((ing) => !isBlankIngredient(ing))
.map((ing) => ({
quantity: Number.parseFloat(ing.quantity),
unit: ing.unit.trim(),
name: ing.name.trim(),
}))
const instructions = draft.instructions.map((step) => step.trim()).filter((step) => step !== '')
return {
title: draft.title.trim(),
ingredients,
instructions,
portions: Number.parseFloat(draft.portions),
nutrients: {
calories: toInt(draft.nutrients.calories),
protein: toInt(draft.nutrients.protein),
fat: toInt(draft.nutrients.fat),
carbs: toInt(draft.nutrients.carbs),
},
}
}
export function RecipeEditPage() {
const { pathname } = useLocation()
return pathname.startsWith('/library/') ? <LibraryRecipeEditPage key={pathname} /> : <GeneratedRecipeEditPage />
}
// Editing an unsaved, generated recipe
function GeneratedRecipeEditPage() {
const location = useLocation()
const navigate = useNavigate()
const index = (location.state as { index?: number } | null)?.index ?? 0
const { recipes, setRecipes } = useRecipeGeneration()
const recipe = recipes[index]
Iif (!recipe) return <Navigate to="/generate" replace />
const back = () => navigate('/generate/recipe', { state: { index }, replace: true })
return (
<RecipeEditor
recipe={recipe}
onCancel={back}
onSaved={(updated) => {
setRecipes((prev) => prev.map((prevRecipe, prevIndex) => (prevIndex === index ? updated : prevRecipe)))
back()
}}
/>
)
}
// Editing a saved recipe (fetched from the API)
function LibraryRecipeEditPage() {
const { t } = useTranslation()
const params = useParams()
const location = useLocation()
const navigate = useNavigate()
const recipeId = Number(params.recipeId)
const recipeIdsInLibrary = (location.state as { ids?: number[] } | null)?.ids
const apiFetch = useApi()
const [recipe, setRecipe] = useState<Recipe | null>(null)
const [phase, setPhase] = useState<'loading' | 'ready' | 'notfound' | 'error'>('loading')
const [error, setError] = useState<string | null>(null)
useEffect(() => {
let cancelled = false
async function load() {
try {
const res = await apiFetch(`/recipes/${recipeId}`)
Iif (res.status === 404) {
if (!cancelled) setPhase('notfound')
return
}
Iif (!res.ok) throw new Error(await errorMessage(res))
const data = (await res.json()) as Recipe
Iif (cancelled) return
setRecipe(data)
setPhase('ready')
} catch (e) {
if (cancelled || e instanceof SessionExpiredError) return
setError(t('common.error', { message: e instanceof Error ? e.message : String(e) }))
setPhase('error')
}
}
load()
return () => {
cancelled = true
}
}, [apiFetch, recipeId, t])
if (phase === 'loading') return <p className="text-gray-500 dark:text-neutral-400">{t('common.loading')}</p>
Iif (phase === 'error') return <p className="text-red-600 dark:text-red-400">{error}</p>
Iif (phase === 'notfound' || !recipe) {
return (
<div className="flex min-h-[60vh] flex-col items-center justify-center gap-4 text-center">
<h2 className="text-lg font-bold">{t('recipe.notFoundTitle')}</h2>
<p className="max-w-xs text-gray-500 dark:text-neutral-400">{t('recipe.notFoundBody')}</p>
<Link to="/library" className="text-orange-600 dark:text-orange-400 hover:underline">
{t('recipe.backToLibrary')}
</Link>
</div>
)
}
const back = () =>
navigate(`/library/recipe/${recipeId}`, {
state: recipeIdsInLibrary ? { ids: recipeIdsInLibrary } : undefined,
})
return <RecipeEditor recipe={recipe} onCancel={back} onSaved={back} />
}
const inputBase = 'rounded-md border bg-transparent px-2 py-1'
const neutralBorder = 'border-gray-300 dark:border-neutral-600'
const borderFor = (invalid: boolean) => (invalid ? 'border-red-500 dark:border-red-500' : neutralBorder)
const sectionCard =
'rounded-lg border border-gray-200 dark:border-neutral-700 bg-white dark:bg-neutral-800 p-6 shadow-sm'
const columnWidth = (values: string[], capChars: number) =>
`calc(${Math.min(capChars, Math.max(1, ...values.map((v) => v.length)))}ch + 1rem)`
function RecipeEditor({
recipe,
onCancel,
onSaved,
}: {
recipe: Recipe
onCancel: () => void
onSaved: (updated: Recipe) => void
}) {
const { t } = useTranslation()
const apiFetch = useApi()
const [draft, setDraft] = useState<RecipeDraft>(() => toDraft(recipe))
const [saving, setSaving] = useState(false)
const [saveError, setSaveError] = useState<string | null>(null)
const [askPersist, setAskPersist] = useState(false)
// warn if edits would get discarded
const [initialJson] = useState(() => JSON.stringify(toDraft(recipe)))
const dirty = JSON.stringify(draft) !== initialJson
const committingRef = useRef(false)
const blocker = useBlocker(useCallback(() => dirty && !committingRef.current, [dirty]))
useEffect(() => {
if (!dirty) return
const handler = (e: BeforeUnloadEvent) => e.preventDefault()
window.addEventListener('beforeunload', handler)
return () => window.removeEventListener('beforeunload', handler)
}, [dirty])
const titleInvalid = draft.title.trim() === ''
const portionsInvalid = isInvalidCount(draft.portions)
const nutrientInvalid = (key: (typeof NUTRIENTS)[number]['key']) => isInvalidCount(draft.nutrients[key])
const ingredientQtyInvalid = (ing: IngredientDraft) => !isBlankIngredient(ing) && isInvalidCount(ing.quantity)
const hasErrors =
titleInvalid ||
portionsInvalid ||
NUTRIENTS.some((n) => nutrientInvalid(n.key)) ||
draft.ingredients.some(ingredientQtyInvalid)
// synchronized widths so the quantity and unit columns line up across every row
const qtyColWidth = columnWidth(draft.ingredients.map((i) => i.quantity), 4)
const unitColWidth = columnWidth(draft.ingredients.map((i) => i.unit), 6)
function updateIngredient(index: number, patch: Partial<IngredientDraft>) {
setDraft((d) => ({
...d,
ingredients: d.ingredients.map((ing, i) => (i === index ? { ...ing, ...patch } : ing)),
}))
}
// `persist` only applies to a recipe that isn't in the library yet
async function commitEdit(persist = false) {
const body = buildRecipeInput(draft)
committingRef.current = true
setSaving(true)
setSaveError(null)
try {
let updated: Recipe
if (recipe.id != null) {
const res = await apiFetch(`/recipes/${recipe.id}`, {
method: 'PUT',
headers: { 'content-type': 'application/json' },
body: JSON.stringify(body),
})
Iif (!res.ok) throw new Error(await errorMessage(res))
updated = (await res.json()) as Recipe
} else if (persist) {
const res = await apiFetch('/recipes', {
method: 'POST',
headers: { 'content-type': 'application/json' },
body: JSON.stringify(body),
})
Iif (!res.ok) throw new Error(await errorMessage(res))
const { id } = (await res.json()) as RecipeCreated
updated = { ...body, id }
} else {
updated = body
}
onSaved(updated)
} catch (e) {
committingRef.current = false
if (e instanceof SessionExpiredError) return
setSaveError(t('common.error', { message: e instanceof Error ? e.message : String(e) }))
setSaving(false)
}
}
function handleSave() {
Iif (hasErrors) return
// an unsaved recipe first asks whether to also store it in the library
if (recipe.id != null) void commitEdit()
else setAskPersist(true)
}
return (
<>
{/* Cancel / Save above the recipe, styled like the recipe pager's arrows */}
<div className="sticky top-0 z-30 -mx-6 -mt-6 flex items-center justify-between gap-3 border-b border-gray-200 bg-white px-6 py-3 dark:border-neutral-700 dark:bg-neutral-900">
<button
type="button"
onClick={onCancel}
className="flex items-center gap-1 text-gray-500 dark:text-neutral-400 cursor-pointer transition-transform duration-100 hover:scale-98"
>
<ChevronLeftIcon className="h-5 w-5" />
{t('common.cancel')}
</button>
<Button type="button" onClick={handleSave} disabled={saving || hasErrors}>
{saving ? t('common.saving') : t('common.save')}
</Button>
</div>
<div className="w-full flex flex-col gap-4">
{/* Title */}
<AutoTextarea
value={draft.title}
onChange={(e) => setDraft((d) => ({ ...d, title: e.target.value }))}
placeholder={t('recipe.titlePlaceholder')}
aria-label={t('recipe.titlePlaceholder')}
className={`w-full text-lg font-bold ${inputBase} ${borderFor(titleInvalid)}`}
/>
{/* Portions */}
<label className="flex items-center gap-2">
<input
type="number"
min={0.5}
step={0.5}
value={draft.portions}
onChange={(e) => setDraft((d) => ({ ...d, portions: e.target.value }))}
aria-label={t('recipe.portionsLabel')}
className={`no-spinner w-14 text-right ${inputBase} ${borderFor(portionsInvalid)}`}
/>
<span className="text-gray-500 dark:text-neutral-400">
{Number.parseFloat(draft.portions) <= 1 ? t('common.portion') : t('common.portions')}
</span>
</label>
{/* Ingredients */}
<div className={sectionCard}>
<h3 className="text-lg font-bold">{t('recipe.ingredients')}</h3>
<div className="mt-1 flex flex-col gap-2">
{draft.ingredients.map((ing, j) => (
<div key={j} className="flex items-center gap-2">
<input
type="number"
step="any"
min={0.5}
value={ing.quantity}
onChange={(e) => updateIngredient(j, { quantity: e.target.value })}
placeholder={t('recipe.quantity')}
aria-label={t('recipe.quantity')}
style={{ width: qtyColWidth }}
className={`no-spinner shrink-0 text-right ${inputBase} ${borderFor(ingredientQtyInvalid(ing))}`}
/>
<input
type="text"
value={ing.unit}
onChange={(e) => updateIngredient(j, { unit: e.target.value })}
placeholder={t('recipe.unit')}
aria-label={t('recipe.unit')}
style={{ width: unitColWidth }}
className={`shrink-0 ${inputBase} ${neutralBorder}`}
/>
<input
type="text"
value={ing.name}
onChange={(e) => updateIngredient(j, { name: e.target.value })}
placeholder={t('recipe.ingredientName')}
aria-label={t('recipe.ingredientName')}
className={`min-w-0 flex-1 ${inputBase} ${neutralBorder}`}
/>
<button
type="button"
onClick={() =>
setDraft((d) => ({ ...d, ingredients: d.ingredients.filter((_, i) => i !== j) }))
}
aria-label={t('recipe.removeIngredient')}
className="cursor-pointer text-gray-400 dark:text-neutral-500 hover:text-red-600 dark:hover:text-red-400 transition-transform duration-100 hover:scale-98"
>
<TrashIcon className="h-5 w-5" />
</button>
</div>
))}
<button
type="button"
onClick={() =>
setDraft((d) => ({ ...d, ingredients: [...d.ingredients, { quantity: '', unit: '', name: '' }] }))
}
className="flex items-center gap-2 self-center mt-1 cursor-pointer text-gray-500 dark:text-neutral-400 transition-transform duration-100 hover:scale-98"
>
<span className="flex h-5 w-5 items-center justify-center rounded-full border border-gray-400 dark:border-neutral-500">
<PlusIcon className="h-4 w-4 text-gray-400 dark:text-neutral-500 stroke-2" />
</span>
{t('recipe.addIngredient')}
</button>
</div>
</div>
{/* Instructions */}
<div className={sectionCard}>
<h3 className="text-lg font-bold">{t('recipe.instructions')}</h3>
<div className="mt-1 flex flex-col gap-2">
{draft.instructions.map((step, j) => (
<div key={j} className="flex items-start gap-2">
<span className="pt-2 text-sm font-medium text-gray-400 dark:text-neutral-500">{j + 1}.</span>
<AutoTextarea
value={step}
onChange={(e) =>
setDraft((d) => ({
...d,
instructions: d.instructions.map((s, i) => (i === j ? e.target.value : s)),
}))
}
placeholder={t('recipe.stepPlaceholder')}
aria-label={t('recipe.stepPlaceholder')}
className={`min-w-0 flex-1 ${inputBase} ${neutralBorder}`}
/>
<button
type="button"
onClick={() =>
setDraft((d) => ({ ...d, instructions: d.instructions.filter((_, i) => i !== j) }))
}
aria-label={t('recipe.removeStep')}
className="mt-1 cursor-pointer text-gray-400 dark:text-neutral-500 hover:text-red-600 dark:hover:text-red-400 transition-transform duration-100 hover:scale-98"
>
<TrashIcon className="h-5 w-5" />
</button>
</div>
))}
<button
type="button"
onClick={() => setDraft((d) => ({ ...d, instructions: [...d.instructions, ''] }))}
className="flex items-center gap-2 self-center mt-1 cursor-pointer text-gray-500 dark:text-neutral-400 transition-transform duration-100 hover:scale-98"
>
<span className="flex h-5 w-5 items-center justify-center rounded-full border border-gray-400 dark:border-neutral-500">
<PlusIcon className="h-4 w-4 text-gray-400 dark:text-neutral-500 stroke-2" />
</span>
{t('recipe.addStep')}
</button>
</div>
</div>
{/* Nutrients */}
<div className={sectionCard}>
<h3 className="text-lg font-bold">{t('recipe.nutrients')}</h3>
<div className="mt-1 flex flex-col gap-2">
{NUTRIENTS.map(({ key, labelKey, unit }) => (
<label key={key} className="flex items-center gap-2">
<input
type="number"
min={0.5}
value={draft.nutrients[key]}
onChange={(e) =>
setDraft((d) => ({ ...d, nutrients: { ...d.nutrients, [key]: e.target.value } }))
}
aria-label={t(labelKey)}
className={`no-spinner w-20 text-right ${inputBase} ${borderFor(nutrientInvalid(key))}`}
/>
<span className="w-10 text-gray-500 dark:text-neutral-400">{unit}</span>
<span className="font-medium">{t(labelKey)}</span>
</label>
))}
</div>
</div>
{saveError && !askPersist && <p className="text-red-600 dark:text-red-400">{saveError}</p>}
</div>
{/* Saving an unsaved recipe: also store it in the library? */}
{askPersist &&
createPortal(
<div
role="dialog"
aria-modal="true"
aria-labelledby="recipe-persist-title"
onClick={() => !saving && setAskPersist(false)}
className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 p-4"
>
<div
onClick={(e) => e.stopPropagation()}
className="w-full max-w-sm rounded-lg bg-white dark:bg-neutral-800 p-6 shadow-xl"
>
<h2 id="recipe-persist-title" className="text-lg font-medium text-gray-900 dark:text-neutral-100">
{t('save.unsavedTitle')}
</h2>
{saveError && <p className="mt-3 text-sm text-red-600 dark:text-red-400">{saveError}</p>}
<div className="mt-6 flex flex-col gap-2">
<button
type="button"
onClick={() => void commitEdit(true)}
disabled={saving}
className="rounded bg-orange-500 px-4 py-2 text-white cursor-pointer hover:bg-orange-600 disabled:opacity-50 disabled:cursor-default"
>
{t('save.toLibrary')}
</button>
<button
type="button"
onClick={() => void commitEdit(false)}
disabled={saving}
className="rounded border border-gray-300 dark:border-neutral-600 px-4 py-2 text-gray-700 dark:text-neutral-200 cursor-pointer hover:bg-gray-100 dark:hover:bg-neutral-700 disabled:opacity-50 disabled:cursor-default"
>
{t('save.keepDraft')}
</button>
<button
type="button"
onClick={() => setAskPersist(false)}
disabled={saving}
className="rounded px-4 py-2 text-gray-500 dark:text-neutral-400 cursor-pointer hover:bg-gray-100 dark:hover:bg-neutral-700 disabled:opacity-50 disabled:cursor-default"
>
{t('common.cancel')}
</button>
</div>
</div>
</div>,
document.body,
)}
{/* Navigating away with unsaved edits */}
{blocker.state === 'blocked' &&
createPortal(
<div
role="dialog"
aria-modal="true"
aria-labelledby="recipe-discard-title"
onClick={() => blocker.reset()}
className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 p-4"
>
<div
onClick={(e) => e.stopPropagation()}
className="w-full max-w-sm rounded-lg bg-white dark:bg-neutral-800 p-6 shadow-xl"
>
<h2 id="recipe-discard-title" className="text-lg font-medium text-gray-900 dark:text-neutral-100">
{t('recipe.discardTitle')}
</h2>
<div className="mt-6 flex justify-end gap-2">
<button
type="button"
onClick={() => blocker.reset()}
className="rounded px-4 py-2 text-gray-700 dark:text-neutral-200 cursor-pointer hover:bg-gray-100 dark:hover:bg-neutral-700"
>
{t('recipe.keepEditing')}
</button>
<button
type="button"
onClick={() => blocker.proceed()}
className="rounded bg-red-500 px-4 py-2 text-white cursor-pointer hover:bg-red-600"
>
{t('recipe.discard')}
</button>
</div>
</div>
</div>,
document.body,
)}
</>
)
}
|