<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.
-->

<script lang="ts">
  import type { CloseModalFn } from '$lib/types/utilTypes';
  import type { TopicDetails } from '$lib/domain/TopicDetails';
  import { z } from 'zod';

  import Button from '../Button.svelte';
  import Icon from '../Icon.svelte';
  import Input from '../Input.svelte';
  import ModalBase from './ModalBase.svelte';
  import { setError, superForm, defaults } from 'sveltekit-superforms/client';
  import { zod4 } from 'sveltekit-superforms/adapters';
  import { fetchRouteApi } from '$lib/api/fetchRouteApi';
  import { goto } from '$app/navigation';
  import { resolve } from '$app/paths';
  import { showToast } from '../AppToasts.svelte';
  import ModalConfirmation from '../ModalConfirmation.svelte';
  import { browser } from '$app/environment';
  import { customInvalidateAll } from '../PeriodicInvalidator.svelte';
  import { page } from '$app/state';
  import DurationInput from '../DurationInput.svelte';

  interface Props {
    topic: TopicDetails;
    closeModal: CloseModalFn;
    onDeleteRedirectPath: string;
  }

  let { topic, closeModal, onDeleteRedirectPath }: Props = $props();

  let confirmationOpen = $state(false);

  const schema = z.object({
    name: z
      .string()
      .min(1, 'Name must contain at least 1 character')
      .max(255, 'Name must not exceed 255 characters')
      .default(topic.name),
    message_expiry: z.number().min(0).max(Number.MAX_SAFE_INTEGER).default(topic.messageExpiry)
  });

  const { form, errors, enhance, submitting, tainted } = superForm(defaults(zod4(schema)), {
    SPA: true,
    validators: zod4(schema),
    invalidateAll: false,
    taintedMessage: false,
    async onUpdate({ form }) {
      if (!form.valid) return;
      if (!page.params.streamId) return;

      const { data, ok } = await fetchRouteApi({
        method: 'PUT',
        path: `/streams/${+page.params.streamId}/topics/${topic.id}`,
        body: {
          name: form.data.name,
          message_expiry: form.data.message_expiry,
          compression_algorithm: topic.compressionAlgorithm,
          max_topic_size: 0
        }
      });

      if (!ok) {
        // Handle API errors
        if (data?.field && data?.reason) {
          // Field-specific error - show in form
          return setError(form, data.field, data.reason);
        } else if (data?.reason) {
          // General error with reason - show toast
          let errorMessage = data.reason;
          if (data.code && data.id) {
            errorMessage += `\n${data.code} (${data.id})`;
          } else if (data.code) {
            errorMessage += `\n${data.code}`;
          }
          showToast({
            type: 'error',
            description: errorMessage,
            duration: 5000
          });
        } else {
          // Fallback error message
          showToast({
            type: 'error',
            description: 'Operation failed',
            duration: 5000
          });
        }
        return;
      }

      // Success
      if (ok) {
        closeModal(async () => {
          await customInvalidateAll();
          showToast({
            type: 'success',
            description: `Stream ${form.data.name} has been updated.`,
            duration: 3500
          });
        });
      }
    }
  });

  const onConfirmationResult = async (e: any) => {
    const result = e.detail as boolean;
    confirmationOpen = false;

    if (result) {
      const { ok } = await fetchRouteApi({
        method: 'DELETE',
        path: `/streams/${+(page.params.streamId || '')}/topics/${topic.id}`
      });

      if (ok) {
        closeModal(async () => {
          if (!browser) return;
          await goto(resolve(onDeleteRedirectPath));
          await customInvalidateAll();
          showToast({
            type: 'success',
            description: `Topic ${topic.name} has been deleted.`,
            duration: 3500
          });
        });
      }
    }
  };
</script>

<ModalBase {closeModal} title="Topic settings">
  <ModalConfirmation
    open={confirmationOpen}
    retypeText={topic.name}
    deleteButtonTitle="Delete Topic"
    on:result={onConfirmationResult}
  >
    {#snippet message()}
      Deleting the topic "<span class="font-semibold">{topic.name}</span>" will permanently remove
      all associated <span class="font-semibold">partitions ({topic.partitionsCount})</span> and
      <span class="font-semibold">messages ({topic.messagesCount})</span>.
    {/snippet}
  </ModalConfirmation>

  <div class="h-[400px] flex flex-col">
    <form method="POST" class="flex flex-col gap-4 flex-3 pb-5" use:enhance>
      <Input name="name" label="Name" bind:value={$form.name} errorMessage={$errors.name?.[0]} />

      <DurationInput label="Message expiry" bind:value={$form.message_expiry} />

      <div class="flex justify-end gap-3 w-full mt-auto">
        <Button type="button" variant="text" class="w-2/5" onclick={() => closeModal()}
          >Cancel</Button
        >

        <Button type="submit" variant="contained" class="w-2/5" disabled={$submitting || !$tainted}
          >Update</Button
        >
      </div>
    </form>

    <div class="relative w-full flex-1">
      <div class="h-px border-b absolute -left-7 -right-7"></div>
      <h2 class="text-xl text-color font-semibold mb-7 mt-5">Delete topic</h2>

      <form class="w-full">
        <div class="flex text-color text-sm justify-between items-center mt-3">
          <span>Make sure it's safe operation</span>

          <Button
            variant="containedRed"
            class="max-h-[36px]"
            onclick={() => (confirmationOpen = true)}
          >
            <Icon name="trash" class="w-[20px] -ml-1" />
            Delete</Button
          >
        </div>
      </form>
    </div>
  </div>
</ModalBase>
