/**
 * This plugin's configuration, rendered on its own page in the plugin
 * manager (`plugins.bundle.config`, keyed by this package's name).
 *
 * The owner asks for two views: `summary` (a one-liner that stands in for the
 * row's description) and `page` (the whole form). Everything visible here
 * belongs to this package, including the platform-specific permission hint.
 *
 * The page is laid out as three groups — what to notify about, the system
 * channel's own state, and what the plugin is doing right now. Each group keeps
 * its controls in one place: a list whose rows carry the subject on the left and
 * the control on the right, and a fact list for the readings, so the status
 * block is scannable instead of being four sentences in one cell.
 *
 * @module @dsh-plugin/session-notify/client/ui/ConfigSection
 */

import * as React from 'react'
import { DISMISS_CHOICES, KINDS } from '../constants.js'
import { windowIsAway } from '../platform.js'
import { DismissRow } from './DismissRow.js'
import { KindRow } from './KindRow.js'
import { seatTranslator, useOwnStore } from './hooks.js'
import { CSS } from './styles.js'

const h = React.createElement

export function ConfigSection(props) {
  const snapshot = useOwnStore(props.store)
  const tr = seatTranslator(props, props.fallbackT)
  if (props.view === 'summary') return h(React.Fragment, null, tr('settings.description'))

  const permission = snapshot.permission
  const supported = permission !== 'unsupported'
  const failed = permission === 'denied' || snapshot.promptError !== ''
  const statusKey = permission === 'granted'
    ? 'settings.permission.granted'
    : permission === 'denied'
      ? 'settings.permission.denied'
      : supported
        ? 'settings.permission.default'
        : 'settings.permission.unsupported'
  const promptFailed = snapshot.promptError !== ''
  const permissionText = promptFailed ? snapshot.promptError : tr(statusKey)
  const dotClass = permission === 'granted'
    ? ''
    : failed ? ' is-error' : supported ? ' is-warn' : ' is-muted'
  const permissionNote = promptFailed
    ? ''
    : permission === 'denied' || !supported
      ? tr(`settings.permission.hint.${props.platform}`)
      : permission === 'granted'
        ? tr('config.testHint')
        : tr('settings.permission.hint.plain')

  const health = snapshot.health
  const healthText = health.state === 'watching'
    ? tr('settings.health.watching')
    : health.state === 'noHooks'
      ? tr('settings.health.noHooks')
      : health.state === 'error'
        ? tr('settings.health.error', { message: health.message })
        : tr('settings.health.starting')
  const healthFailed = health.state !== 'watching' && health.state !== 'starting'

  const delivery = props.copy.deliveryFacts(snapshot.lastDelivery, tr)

  return h(React.Fragment, null,
    h('style', null, CSS),
    h('div', { className: 'dsn-page' },
      // The page header already shows this bundle's title and description, so this
      // lede says what the header cannot: how an alert travels, and that the
      // channel is chosen at delivery time.
      h('p', { className: 'dsn-lede' }, tr('config.intro')),

      h('section', { className: 'dsn-group' },
        h('h3', { className: 'dsn-group-title' }, tr('config.section.kinds')),
        h('div', { className: 'dsn-list' },
          KINDS.map((kind) => h(KindRow, {
            key: kind,
            label: tr(`settings.kind.${kind}`),
            checked: snapshot.kinds[kind] === true,
            disabled: false,
            onToggle: () => props.setKind(kind, snapshot.kinds[kind] !== true),
          }))),
        h('p', { className: 'dsn-group-note' }, tr('config.saveNote'))),

      h('section', { className: 'dsn-group' },
        h('h3', { className: 'dsn-group-title' }, tr('config.section.popup')),
        h('div', { className: 'dsn-list' },
          h(DismissRow, {
            label: tr('settings.dismiss.label'),
            options: DISMISS_CHOICES.map((value) => ({ value, label: tr(`settings.dismiss.${value}`) })),
            value: snapshot.dismissAfterMs,
            onChange: props.setDismiss,
          })),
        h('p', { className: 'dsn-group-note' }, tr('config.dismiss.note'))),

      h('section', { className: 'dsn-group' },
        h('h3', { className: 'dsn-group-title' }, tr('config.section.permission')),
        h('div', { className: 'dsn-list' },
          h('div', { className: 'dsn-row' },
            h('div', { className: 'dsn-row-text' },
              h('span', {
                className: 'dsn-state',
                role: failed ? 'alert' : 'status',
              },
              h('span', { className: `dsn-dot${dotClass}` }),
              permissionText),
              h('p', { className: 'dsn-row-sub' }, permissionNote)),
            h('button', {
              type: 'button',
              className: `dsn-button${supported && permission !== 'granted' ? ' is-primary' : ''}`,
              disabled: !supported,
              onClick: permission === 'granted' ? props.testSystem : props.ask,
            }, tr(!supported
              ? 'settings.action.unsupported'
              : permission === 'granted' ? 'settings.action.testSystem' : 'settings.action.allow'))))),

      h('section', { className: 'dsn-group' },
        h('h3', { className: 'dsn-group-title' }, tr('config.section.status')),
        h('dl', { className: 'dsn-facts' },
          h('dt', { className: 'dsn-fact-key' }, tr('config.diag.window')),
          h('dd', { className: 'dsn-fact' },
            h('p', { className: 'dsn-fact-value' }, tr(windowIsAway() ? 'config.diag.away' : 'config.diag.inFront'))),
          h('dt', { className: 'dsn-fact-key' }, tr('config.diag.watch')),
          h('dd', { className: 'dsn-fact' },
            h('p', {
              className: `dsn-fact-value${healthFailed ? ' is-error' : ''}`,
              role: healthFailed ? 'alert' : 'status',
            }, healthText)),
          h('dt', { className: 'dsn-fact-key' }, tr('config.diag.last')),
          h('dd', { className: 'dsn-fact' },
            delivery === null
              ? h('p', { className: 'dsn-fact-value' }, tr('config.diag.none'))
              : [
                h('p', { key: 'line', className: 'dsn-fact-value' }, `${delivery.at} · ${delivery.outcome}`),
                delivery.title === ''
                  ? null
                  : h('p', { key: 'title', className: 'dsn-fact-title' }, delivery.title),
              ]),
          h('dt', { className: 'dsn-fact-key' }, tr('config.diag.replay')),
          h('dd', { className: 'dsn-fact' },
            h('p', { className: 'dsn-fact-value' }, props.copy.replayValue(props.replayCount(), tr)))),
        h('div', { className: 'dsn-list' },
          h('div', { className: 'dsn-row is-action' },
            h('button', {
              type: 'button',
              className: 'dsn-button',
              onClick: props.testAny,
            }, tr('settings.action.testAny')))))))
}