---
import { z } from 'astro/zod'
import { Icon } from 'astro-icon/components'
import { actions } from 'astro:actions'

import Button from '../components/Button.astro'
import TimeFormatted from '../components/TimeFormatted.astro'
import Tooltip from '../components/Tooltip.astro'
import { getNotificationTypeInfo } from '../constants/notificationTypes'
import BaseLayout from '../layouts/BaseLayout.astro'
import { cn } from '../lib/cn'
import { getOrCreateNotificationPreferences } from '../lib/notificationPreferences'
import { makeNotificationContent, makeNotificationLink, makeNotificationTitle } from '../lib/notifications'
import { zodParseQueryParamsStoringErrors } from '../lib/parseUrlFilters'
import { prisma } from '../lib/prisma'
import { makeLoginUrl } from '../lib/redirectUrls'

const user = Astro.locals.user
if (!user) return Astro.redirect(makeLoginUrl(Astro.url))

const PAGE_SIZE = 20

const { data: params } = zodParseQueryParamsStoringErrors(
  {
    page: z.coerce.number().int().min(1).default(1),
  },
  Astro
)
const skip = (params.page - 1) * PAGE_SIZE

const [dbNotifications, notificationPreferences, totalNotifications] = await Astro.locals.banners.tryMany([
  [
    'Error while fetching notifications',
    () =>
      prisma.notification.findMany({
        where: {
          userId: user.id,
        },
        orderBy: {
          createdAt: 'desc',
        },
        skip,
        take: PAGE_SIZE,
        select: {
          id: true,
          type: true,
          createdAt: true,
          read: true,
          aboutAccountStatusChange: true,
          aboutCommentStatusChange: true,
          aboutServiceVerificationStatusChange: true,
          aboutSuggestionStatusChange: true,
          aboutComment: {
            select: {
              id: true,
              author: {
                select: {
                  id: true,
                },
              },
              status: true,
              content: true,
              communityNote: true,
              service: {
                select: {
                  slug: true,
                  name: true,
                },
              },
              parent: {
                select: {
                  author: {
                    select: {
                      id: true,
                    },
                  },
                },
              },
            },
          },
          aboutServiceSuggestionId: true,
          aboutServiceSuggestion: {
            select: {
              status: true,
              service: {
                select: {
                  name: true,
                },
              },
            },
          },
          aboutServiceSuggestionMessage: {
            select: {
              id: true,
              content: true,
              suggestion: {
                select: {
                  id: true,
                  service: {
                    select: {
                      name: true,
                    },
                  },
                },
              },
            },
          },
          aboutEvent: {
            select: {
              title: true,
              type: true,
              service: {
                select: {
                  slug: true,
                  name: true,
                },
              },
            },
          },
          aboutService: {
            select: {
              slug: true,
              name: true,
              verificationStatus: true,
            },
          },
          aboutKarmaTransaction: {
            select: {
              points: true,
              action: true,
              description: true,
            },
          },
        },
      }),
    [],
  ],
  [
    'Error while fetching notification preferences',
    () =>
      getOrCreateNotificationPreferences(user.id, {
        id: true,
        enableOnMyCommentStatusChange: true,
        enableAutowatchMyComments: true,
        enableNotifyPendingRepliesOnWatch: true,
        karmaNotificationThreshold: true,
      }),
    null,
  ],
  [
    'Error while fetching total notifications',
    () => prisma.notification.count({ where: { userId: user.id } }),
    0,
  ],
])

const totalPages = Math.ceil(totalNotifications / PAGE_SIZE)

const notificationPreferenceFields = [
  {
    id: 'enableOnMyCommentStatusChange',
    label: 'Notify me when my comment status changes.',
    icon: 'ri:chat-check-line',
  },
  {
    id: 'enableAutowatchMyComments',
    label: 'Autowatch my comments to receive notifications when they get a new reply.',
    icon: 'ri:eye-line',
  },
  {
    id: 'enableNotifyPendingRepliesOnWatch',
    label: 'Notify me also about unmoderated replies for watched comments.',
    icon: 'ri:chat-delete-line',
  },
] as const satisfies {
  id: Omit<keyof NonNullable<typeof notificationPreferences>, 'id'>
  label: string
  icon: string
}[]

const notifications = dbNotifications.map((notification) => ({
  ...notification,
  typeInfo: getNotificationTypeInfo(notification.type),
  title: makeNotificationTitle(notification, user),
  content: makeNotificationContent(notification),
  link: makeNotificationLink(notification, Astro.url.origin),
}))
---

<BaseLayout
  pageTitle="Notifications"
  description="View your notifications and manage your notification preferences."
  widthClassName="max-w-screen-lg"
  ogImage={{
    template: 'generic',
    title: 'Notifications',
    description: 'View and manage your notifications',
    icon: 'ri:notification-line',
  }}
>
  <section class="mx-auto w-full">
    <div class="mb-4 flex items-center justify-between">
      <h1 class="font-title flex items-center text-2xl leading-tight font-bold tracking-wider">
        <Icon name="ri:notification-line" class="mr-2 size-6 text-zinc-400" />
        Notifications
      </h1>

      <form method="POST" action={actions.notification.updateReadStatus}>
        <input type="hidden" name="notificationId" value="all" />
        <input type="hidden" name="read" value="true" />
        <Button
          type="submit"
          label="Mark all as read"
          icon="ri:check-double-line"
          disabled={notifications.length === 0}
          color="white"
        />
      </form>
    </div>

    {
      notifications.length === 0 ? (
        <div class="flex flex-col items-center justify-center rounded-lg border border-zinc-800 bg-zinc-900 p-10 text-center shadow-sm">
          <Icon name="material-symbols:notifications-outline" class="size-16 text-zinc-600" />
          <h3 class="font-title mt-2 text-zinc-400">No notifications</h3>
        </div>
      ) : (
        <div class="space-y-2">
          {notifications.map((notification) => (
            <div
              class={cn('rounded-lg border border-l-4 border-zinc-800 bg-zinc-900 p-3 shadow-sm', {
                'border-l-blue-600': !notification.read,
              })}
            >
              <div class="flex items-start justify-between">
                <div class="flex items-start gap-3">
                  <div class="mt-0.5 rounded-md bg-zinc-800 p-2">
                    <Icon name={notification.typeInfo.icon} class="size-5 text-zinc-300" />
                  </div>

                  <div>
                    <div class="font-medium text-zinc-200">{notification.title}</div>
                    <p class="text-sm wrap-anywhere text-zinc-400">{notification.content}</p>
                    <div class="mt-1 text-xs text-zinc-500">
                      <TimeFormatted date={notification.createdAt} prefix={false} caseType="sentence" />
                    </div>
                  </div>
                </div>

                <div class="flex items-center gap-2">
                  <form method="POST" action={actions.notification.updateReadStatus}>
                    <input type="hidden" name="notificationId" value={notification.id} />
                    <input type="hidden" name="read" value={notification.read ? 'false' : 'true'} />
                    <Tooltip
                      as="button"
                      text={notification.read ? 'Mark as unread' : 'Mark as read'}
                      position="left"
                      type="submit"
                      class="flex size-8 items-center justify-center rounded-full border border-zinc-700 bg-zinc-800 text-zinc-400 transition-colors duration-200 hover:bg-zinc-700 hover:text-zinc-200"
                    >
                      <Icon name={notification.read ? 'ri:eye-close-line' : 'ri:eye-line'} class="size-4" />
                    </Tooltip>
                  </form>
                  {notification.link && (
                    <a
                      href={notification.link}
                      class="flex size-8 items-center justify-center rounded-full border border-zinc-700 bg-zinc-800 text-zinc-400 transition-colors duration-200 hover:bg-zinc-700 hover:text-zinc-200"
                    >
                      <Icon name="ri:arrow-right-line" class="size-4" />
                      <span class="sr-only">View details</span>
                    </a>
                  )}
                </div>
              </div>
            </div>
          ))}

          {totalPages > 1 && (
            <div class="mt-8 flex justify-center gap-4">
              <form method="GET" action="/notifications" class="inline">
                <input type="hidden" name="page" value={params.page - 1} />
                <button
                  type="submit"
                  class="rounded-md border border-zinc-700 bg-zinc-800 px-4 py-2 text-sm text-zinc-200 transition-colors duration-200 hover:bg-zinc-700"
                  disabled={params.page <= 1}
                >
                  Previous
                </button>
              </form>
              <span class="inline-flex items-center px-2 text-sm text-zinc-400">
                Page {params.page} of {totalPages}
              </span>
              <form method="GET" action="/notifications" class="inline">
                <input type="hidden" name="page" value={params.page + 1} />
                <button
                  type="submit"
                  class="rounded-md border border-zinc-700 bg-zinc-800 px-4 py-2 text-sm text-zinc-200 transition-colors duration-200 hover:bg-zinc-700"
                  disabled={params.page >= totalPages}
                >
                  Next
                </button>
              </form>
            </div>
          )}
        </div>
      )
    }

    {
      !!notificationPreferences && (
        <div class="mt-8">
          <h2 class="font-title mb-3 flex items-center border-b border-zinc-800 text-lg font-bold">
            <Icon name="ri:settings-3-line" class="mr-2 size-5 text-zinc-400" />
            Notification Settings
          </h2>

          <form
            method="POST"
            action={actions.notification.preferences.update}
            class="rounded-lg border border-zinc-800 bg-zinc-900 p-4 shadow-sm"
          >
            {notificationPreferenceFields.map((field) => (
              <label class="flex items-center justify-between rounded-md p-2 transition-colors duration-200 hover:bg-zinc-800">
                <span class="flex items-center text-zinc-300">
                  <Icon name={field.icon} class="mr-2 size-5 text-zinc-400" />
                  {field.label}
                </span>
                <input
                  type="checkbox"
                  name={field.id}
                  checked={notificationPreferences[field.id]}
                  class="size-4 rounded border-zinc-700 bg-zinc-800 text-blue-600 focus:ring-blue-600"
                />
              </label>
            ))}

            <div class="mt-4 flex items-center justify-between rounded-md p-2 transition-colors duration-200 hover:bg-zinc-800">
              <span class="flex items-center text-zinc-300">
                <Icon name="ri:award-line" class="mr-2 size-5 text-zinc-400" />
                Notify me when my karma changes by at least
              </span>
              <div class="flex items-center gap-2">
                <input
                  type="number"
                  name="karmaNotificationThreshold"
                  value={notificationPreferences.karmaNotificationThreshold}
                  min="1"
                  class="w-20 rounded border border-zinc-700 bg-zinc-800 px-2 py-1 text-zinc-200 focus:border-blue-600 focus:ring-1 focus:ring-blue-600 focus:outline-none"
                />
                <span class="text-zinc-400">points</span>
              </div>
            </div>

            <div class="mt-4 flex justify-end">
              <Button type="submit" label="Save" icon="ri:save-line" color="success" />
            </div>
          </form>
        </div>
      )
    }
  </section>
</BaseLayout>