'use client';

import { Message } from 'ai';
import cx from 'classnames';
import { Sparkles } from 'lucide-react';
import { Dispatch, SetStateAction } from 'react';

import { Vote } from '@/db/schema';

import { UICanvas } from './canvas';
import { DocumentToolCall, DocumentToolResult } from './document';
import { Markdown } from './markdown';
import { MessageActions } from './message-actions';
import { PreviewAttachment } from './preview-attachment';
import { Weather } from './weather';

export const PreviewMessage = ({
  chatId,
  message,
  canvas,
  setCanvas,
  vote,
  isLoading,
}: {
  chatId: string;
  message: Message;
  canvas: UICanvas;
  setCanvas: Dispatch<SetStateAction<UICanvas>>;
  vote: Vote | undefined;
  isLoading: boolean;
}) => {
  return (
    <div
      className="w-full mx-auto max-w-3xl px-4 group/message "
      data-role={message.role}
    >
      <div
        className={cx(
          'flex gap-4 group-data-[role=user]/message:px-3 w-full group-data-[role=user]/message:w-fit group-data-[role=user]/message:ml-auto group-data-[role=user]/message:max-w-2xl group-data-[role=user]/message:py-2 rounded-xl',
          {
            'group-data-[role=user]/message:bg-muted': !canvas,
            'group-data-[role=user]/message:bg-zinc-300 dark:group-data-[role=user]/message:bg-zinc-800':
              canvas,
          }
        )}
      >
        {message.role === 'assistant' && (
          <div className="size-8 flex items-center rounded-full justify-center ring-1 shrink-0 ring-border">
            <Sparkles className="size-4" />
          </div>
        )}

        <div className="flex flex-col gap-2 w-full">
          {message.content && (
            <div className="flex flex-col gap-4">
              <Markdown>{message.content as string}</Markdown>
            </div>
          )}

          {message.toolInvocations && message.toolInvocations.length > 0 && (
            <div className="flex flex-col gap-4">
              {message.toolInvocations.map((toolInvocation) => {
                const { toolName, toolCallId, state, args } = toolInvocation;

                if (state === 'result') {
                  const { result } = toolInvocation;

                  return (
                    <div key={toolCallId}>
                      {toolName === 'getWeather' ? (
                        <Weather weatherAtLocation={result} />
                      ) : toolName === 'createDocument' ? (
                        <DocumentToolResult
                          type="create"
                          result={result}
                          canvas={canvas}
                          setCanvas={setCanvas}
                        />
                      ) : toolName === 'updateDocument' ? (
                        <DocumentToolResult
                          type="update"
                          result={result}
                          canvas={canvas}
                          setCanvas={setCanvas}
                        />
                      ) : toolName === 'requestSuggestions' ? (
                        <DocumentToolResult
                          type="request-suggestions"
                          result={result}
                          canvas={canvas}
                          setCanvas={setCanvas}
                        />
                      ) : (
                        <pre>{JSON.stringify(result, null, 2)}</pre>
                      )}
                    </div>
                  );
                } else {
                  return (
                    <div
                      key={toolCallId}
                      className={cx({
                        skeleton: ['getWeather'].includes(toolName),
                      })}
                    >
                      {toolName === 'getWeather' ? (
                        <Weather />
                      ) : toolName === 'createDocument' ? (
                        <DocumentToolCall type="create" args={args} />
                      ) : toolName === 'updateDocument' ? (
                        <DocumentToolCall type="update" args={args} />
                      ) : toolName === 'requestSuggestions' ? (
                        <DocumentToolCall
                          type="request-suggestions"
                          args={args}
                        />
                      ) : null}
                    </div>
                  );
                }
              })}
            </div>
          )}

          {message.experimental_attachments && (
            <div className="flex flex-row gap-2">
              {message.experimental_attachments.map((attachment) => (
                <PreviewAttachment
                  key={attachment.url}
                  attachment={attachment}
                />
              ))}
            </div>
          )}

          <MessageActions
            key={`action-${message.id}`}
            chatId={chatId}
            message={message}
            vote={vote}
            isLoading={isLoading}
          />
        </div>
      </div>
    </div>
  );
};
