Customer onboarding

'use client'

import { Field, Fieldset } from '@/components/ui/field'
import { Input } from '@/components/ui/input'
import { Radio } from '@/components/ui/choice'
import { Combobox } from '@/components/ui/combobox'
import { useDemoForm } from '@/hooks/use-demo-form'
import { pattern, required } from '@/lib/validation'
import { FormShell } from './_shell'

/**
 * Customer onboarding
 *
 * Collects only what is needed to create a usable workspace. The slug field
 * previews the resulting URL live, which prevents the most common onboarding
 * mistake: choosing a name and then discovering what it turned into.
 */
export default function CustomerOnboardingForm() {
  const form = useDemoForm({
    schema: {
      workspace: { validators: [required('Workspace name')] },
      slug: {
        validators: [
          required('Slug'),
          pattern(/^[a-z0-9-]{3,32}$/, 'Use 3–32 lowercase letters, digits or hyphens.'),
        ],
      },
      region: { initial: 'eu-west', validators: [required('Region')] },
      teamSize: { initial: 'small' },
    },
  })

  return (
    <FormShell
      title="Set up your workspace"
      description="You can change any of this later."
      formRef={form.formRef}
      onSubmit={form.handleSubmit}
      status={form.status}
      serverError={form.serverError}
      invalidCount={form.invalidCount}
      submitted={form.submitted}
      submitLabel="Create workspace"
      submittingLabel="Creating workspace"
      onReset={form.reset}
      successTitle="Workspace created"
    >
      <Field name="workspace" label="Workspace name" required error={form.error('workspace')}>
        {(field) => <Input {...field} placeholder="Acme Platform" {...form.field('workspace')} />}
      </Field>

      <Field
        name="slug"
        label="Workspace URL"
        required
        error={form.error('slug')}
        hint={`Your workspace will live at foundry.example.com/${form.values.slug || 'your-slug'}`}
      >
        {(field) => (
          <Input
            {...field}
            className="font-mono"
            placeholder="acme-platform"
            leading={<span className="text-xs">/</span>}
            {...form.field('slug')}
          />
        )}
      </Field>

      <Field
        name="region"
        label="Data region"
        required
        error={form.error('region')}
        hint="Records never leave the region you choose."
      >
        {(field) => (
          <Combobox
            id={field.id}
            name={field.name}
            aria-describedby={field['aria-describedby']}
            value={form.values.region}
            onValueChange={(value) => form.setValue('region', value)}
            options={[
              {
                value: 'eu-west',
                label: 'EU West (Ireland)',
                description: 'GDPR, data stays in the EU',
              },
              {
                value: 'us-east',
                label: 'US East (Virginia)',
                description: 'Lowest latency in North America',
              },
              {
                value: 'ap-south',
                label: 'Asia Pacific (Singapore)',
                description: 'Lowest latency in APAC',
              },
              {
                value: 'sa-east',
                label: 'South America (São Paulo)',
                description: 'Business plan and above',
                disabled: true,
              },
            ]}
          />
        )}
      </Field>

      <Fieldset legend="How many people will use this?" name="teamSize">
        <Radio
          id="size-solo"
          name="teamSize"
          value="solo"
          label="Just me"
          checked={form.values.teamSize === 'solo'}
          onChange={() => form.setValue('teamSize', 'solo')}
        />
        <Radio
          id="size-small"
          name="teamSize"
          value="small"
          label="2–10"
          checked={form.values.teamSize === 'small'}
          onChange={() => form.setValue('teamSize', 'small')}
        />
        <Radio
          id="size-large"
          name="teamSize"
          value="large"
          label="More than 10"
          checked={form.values.teamSize === 'large'}
          onChange={() => form.setValue('teamSize', 'large')}
        />
      </Fieldset>
    </FormShell>
  )
}

'use client'

import { useMemo, useRef, useState, type KeyboardEvent } from 'react'
import { ChevronDown, Check, Search } from 'lucide-react'
import { cn } from '@/lib/cn'
import { useDismiss } from '@/hooks/use-dismiss'
import { controlSurface } from './input'

/**
 * Combobox
 *
 * Implements the ARIA 1.2 combobox pattern with a filterable listbox popup:
 * the text input owns `role="combobox"`, `aria-expanded` and
 * `aria-activedescendant`, and the list is a real `role="listbox"` whose
 * options carry `aria-selected`.
 *
 * Focus never leaves the input, which is what makes arrow-key browsing feel
 * right and keeps the on-screen keyboard open on mobile.
 */
export interface ComboboxOption {
  value: string
  label: string
  description?: string
  disabled?: boolean
}

export interface ComboboxProps {
  options: ComboboxOption[]
  id?: string
  name?: string
  value?: string
  defaultValue?: string
  placeholder?: string
  emptyMessage?: string
  disabled?: boolean
  invalid?: boolean
  className?: string
  'aria-describedby'?: string
  onValueChange?: (value: string) => void
}

export function Combobox({
  options,
  id = 'combobox',
  name,
  value: controlledValue,
  defaultValue = '',
  placeholder = 'Select an option',
  emptyMessage = 'No matches found.',
  disabled = false,
  invalid = false,
  className,
  onValueChange,
  ...aria
}: ComboboxProps) {
  const [open, setOpen] = useState(false)
  const [query, setQuery] = useState('')
  const [activeIndex, setActiveIndex] = useState(0)
  const [uncontrolled, setUncontrolled] = useState(defaultValue)
  const value = controlledValue ?? uncontrolled

  const rootRef = useRef<HTMLDivElement>(null)
  const inputRef = useRef<HTMLInputElement>(null)
  const listId = `${id}-listbox`

  const selected = options.find((option) => option.value === value)

  const filtered = useMemo(() => {
    const q = query.trim().toLowerCase()
    if (!q) return options
    return options.filter(
      (option) =>
        option.label.toLowerCase().includes(q) ||
        option.description?.toLowerCase().includes(q) ||
        option.value.toLowerCase().includes(q),
    )
  }, [options, query])

  useDismiss([rootRef], open, () => {
    setOpen(false)
    setQuery('')
  })

  const select = (option: ComboboxOption) => {
    if (option.disabled) return
    if (controlledValue === undefined) setUncontrolled(option.value)
    onValueChange?.(option.value)
    setOpen(false)
    setQuery('')
    inputRef.current?.focus()
  }

  const onKeyDown = (event: KeyboardEvent<HTMLInputElement>) => {
    if (event.key === 'ArrowDown' || event.key === 'ArrowUp') {
      event.preventDefault()
      if (!open) {
        setOpen(true)
        setActiveIndex(0)
        return
      }
      const direction = event.key === 'ArrowDown' ? 1 : -1
      setActiveIndex((current) => {
        if (filtered.length === 0) return 0
        return (current + direction + filtered.length) % filtered.length
      })
    } else if (event.key === 'Enter') {
      if (!open) return
      event.preventDefault()
      const option = filtered[activeIndex]
      if (option) select(option)
    } else if (event.key === 'Home' && open) {
      event.preventDefault()
      setActiveIndex(0)
    } else if (event.key === 'End' && open) {
      event.preventDefault()
      setActiveIndex(Math.max(0, filtered.length - 1))
    } else if (event.key === 'Tab') {
      setOpen(false)
    }
  }

  const activeOption = filtered[activeIndex]

  return (
    <div ref={rootRef} className={cn('relative', className)}>
      {name ? <input type="hidden" name={name} value={value} /> : null}
      <div className="relative flex items-center">
        <Search
          className="pointer-events-none absolute left-3 size-4 text-ink-subtle"
          aria-hidden="true"
        />
        <input
          ref={inputRef}
          id={id}
          role="combobox"
          type="text"
          autoComplete="off"
          disabled={disabled}
          aria-expanded={open}
          aria-controls={listId}
          aria-autocomplete="list"
          aria-activedescendant={
            open && activeOption ? `${id}-option-${activeOption.value}` : undefined
          }
          aria-invalid={invalid || undefined}
          aria-describedby={aria['aria-describedby']}
          placeholder={placeholder}
          value={open ? query : (selected?.label ?? '')}
          onChange={(event) => {
            setQuery(event.target.value)
            setActiveIndex(0)
            if (!open) setOpen(true)
          }}
          onFocus={() => setOpen(true)}
          onKeyDown={onKeyDown}
          className={cn(
            controlSurface,
            'h-control cursor-default pr-9 pl-9 text-sm',
            invalid && 'border-danger bg-danger-soft',
          )}
        />
        <button
          type="button"
          tabIndex={-1}
          aria-hidden="true"
          disabled={disabled}
          onClick={() => {
            setOpen((o) => !o)
            inputRef.current?.focus()
          }}
          className="absolute right-2 flex size-6 items-center justify-center rounded-sm text-ink-subtle"
        >
          <ChevronDown
            className={cn('size-4 transition-transform duration-150', open && 'rotate-180')}
          />
        </button>
      </div>

      {open ? (
        <ul
          id={listId}
          role="listbox"
          aria-label="Options"
          className="absolute z-50 mt-1 max-h-64 w-full overflow-y-auto rounded-md border border-line bg-surface-raised p-1 shadow-md thin-scrollbar"
        >
          {filtered.length === 0 ? (
            <li className="px-3 py-6 text-center text-sm text-ink-muted">{emptyMessage}</li>
          ) : (
            filtered.map((option, index) => (
              <li
                key={option.value}
                id={`${id}-option-${option.value}`}
                role="option"
                aria-selected={option.value === value}
                aria-disabled={option.disabled || undefined}
                onMouseEnter={() => setActiveIndex(index)}
                onPointerDown={(event) => {
                  event.preventDefault()
                  select(option)
                }}
                className={cn(
                  'flex cursor-pointer items-start gap-2 rounded-sm px-2.5 py-2 text-sm',
                  index === activeIndex && 'bg-surface-sunken',
                  option.disabled && 'cursor-not-allowed opacity-50',
                )}
              >
                <Check
                  className={cn(
                    'mt-0.5 size-4 shrink-0 text-accent',
                    option.value === value ? 'opacity-100' : 'opacity-0',
                  )}
                  aria-hidden="true"
                />
                <span className="min-w-0">
                  <span className="block truncate font-medium text-ink">{option.label}</span>
                  {option.description ? (
                    <span className="block truncate text-xs text-ink-muted">
                      {option.description}
                    </span>
                  ) : null}
                </span>
              </li>
            ))
          )}
        </ul>
      ) : null}
    </div>
  )
}