import type { SlackCanvasParams, SlackCanvasResponse } from '@/tools/slack/types'
import { CANVAS_OUTPUT_PROPERTIES } from '@/tools/slack/types'
import type { ToolConfig } from '@/tools/types'

export const slackCanvasTool: ToolConfig<SlackCanvasParams, SlackCanvasResponse> = {
  id: 'slack_canvas',
  name: 'Slack Canvas Writer',
  description:
    'Create and share Slack canvases in channels. Canvases are collaborative documents within Slack.',
  version: '1.0.0',

  oauth: {
    required: true,
    provider: 'slack',
  },

  params: {
    authMethod: {
      type: 'string',
      required: false,
      visibility: 'user-only',
      description: 'Authentication method: oauth or bot_token',
    },
    botToken: {
      type: 'string',
      required: false,
      visibility: 'user-only',
      description: 'Bot token for Custom Bot',
    },
    accessToken: {
      type: 'string',
      required: false,
      visibility: 'hidden',
      description: 'OAuth access token or bot token for Slack API',
    },
    channel: {
      type: 'string',
      required: true,
      visibility: 'user-or-llm',
      description: 'Slack channel ID (e.g., C1234567890)',
    },
    title: {
      type: 'string',
      required: true,
      visibility: 'user-or-llm',
      description: 'Title of the canvas',
    },
    content: {
      type: 'string',
      required: true,
      visibility: 'user-or-llm',
      description: 'Canvas content in markdown format',
    },
    document_content: {
      type: 'object',
      required: false,
      visibility: 'hidden',
      description: 'Structured canvas document content',
    },
  },

  request: {
    url: 'https://slack.com/api/canvases.create',
    method: 'POST',
    headers: (params: SlackCanvasParams) => ({
      'Content-Type': 'application/json',
      Authorization: `Bearer ${params.accessToken || params.botToken}`,
    }),
    body: (params: SlackCanvasParams) => {
      // Use structured document content if provided, otherwise use markdown format
      if (params.document_content) {
        return {
          title: params.title,
          channel_id: params.channel,
          document_content: params.document_content,
        }
      }
      // Use the correct Canvas API format with markdown
      return {
        title: params.title,
        channel_id: params.channel,
        document_content: {
          type: 'markdown',
          markdown: params.content,
        },
      }
    },
  },

  transformResponse: async (response: Response): Promise<SlackCanvasResponse> => {
    const data = await response.json()

    if (!data.ok) {
      return {
        success: false,
        output: {
          canvas_id: '',
        },
        error: data.error || 'Unknown error',
      }
    }

    return {
      success: true,
      output: {
        canvas_id: data.canvas_id ?? data.id ?? '',
      },
    }
  },

  outputs: CANVAS_OUTPUT_PROPERTIES,
}