chore: import upstream snapshot with attribution

apps/sim/tools/slack/get_channel_history.ts

@@ -0,0 +1,158 @@
+import type {
+  SlackGetChannelHistoryParams,
+  SlackGetChannelHistoryResponse,
+} from '@/tools/slack/types'
+import { MESSAGE_OUTPUT_PROPERTIES } from '@/tools/slack/types'
+import { fetchSlackMessagesPaginated, resolvePositiveInt } from '@/tools/slack/utils'
+import type { ToolConfig } from '@/tools/types'
+
+/** Default cap on pages fetched per invocation. */
+const DEFAULT_MAX_PAGES = 10
+
+export const slackGetChannelHistoryTool: ToolConfig<
+  SlackGetChannelHistoryParams,
+  SlackGetChannelHistoryResponse
+> = {
+  id: 'slack_get_channel_history',
+  name: 'Slack Get Channel History',
+  description:
+    'Fetch message history from a Slack channel, automatically following pagination. Optionally filter by a time range to scrape messages since a given timestamp.',
+  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)',
+    },
+    oldest: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Only include messages after this Unix timestamp (seconds, e.g., 1700000000)',
+    },
+    latest: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Only include messages before this Unix timestamp (seconds)',
+    },
+    inclusive: {
+      type: 'boolean',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Include messages with timestamps matching oldest or latest (default: false)',
+    },
+    limit: {
+      type: 'number',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Messages to request per page (default: 200, max: 999)',
+    },
+    cursor: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Pagination cursor from a previous response.nextCursor to resume from',
+    },
+    maxPages: {
+      type: 'number',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Maximum number of pages to fetch before stopping (default: 10)',
+    },
+  },
+
+  request: {
+    url: () => 'https://slack.com/api/conversations.history',
+    method: 'GET',
+    headers: (params: SlackGetChannelHistoryParams) => ({
+      Authorization: `Bearer ${params.accessToken || params.botToken}`,
+    }),
+  },
+
+  directExecution: async (params: SlackGetChannelHistoryParams) => {
+    const token = params.accessToken || params.botToken
+    if (!token) {
+      throw new Error('Missing Slack credentials. Provide an OAuth connection or a bot token.')
+    }
+
+    const result = await fetchSlackMessagesPaginated({
+      token,
+      method: 'conversations.history',
+      baseParams: {
+        channel: params.channel,
+        oldest: params.oldest,
+        latest: params.latest,
+        inclusive: params.inclusive ? 'true' : undefined,
+      },
+      limit: resolvePositiveInt(params.limit, 200),
+      cursor: params.cursor,
+      maxPages: resolvePositiveInt(params.maxPages, DEFAULT_MAX_PAGES),
+      missingScopeHint: 'channels:history, groups:history, im:history, mpim:history',
+    })
+
+    return {
+      success: true,
+      output: {
+        messages: result.messages,
+        count: result.messages.length,
+        hasMore: result.hasMore,
+        nextCursor: result.nextCursor,
+        pages: result.pages,
+      },
+    }
+  },
+
+  outputs: {
+    messages: {
+      type: 'array',
+      description: 'Channel messages in reverse-chronological order (newest first)',
+      items: {
+        type: 'object',
+        properties: MESSAGE_OUTPUT_PROPERTIES,
+      },
+    },
+    count: {
+      type: 'number',
+      description: 'Total number of messages returned across all fetched pages',
+    },
+    hasMore: {
+      type: 'boolean',
+      description: 'Whether more pages remain beyond the fetched window',
+    },
+    nextCursor: {
+      type: 'string',
+      description: 'Cursor to fetch the next page; null when there are no more pages',
+      optional: true,
+    },
+    pages: {
+      type: 'number',
+      description: 'Number of pages fetched in this invocation',
+    },
+  },
+}