|
| 1 | +import os |
| 2 | +from posit import connect |
| 3 | +from posit.connect.content import ContentItem |
| 4 | +from posit.connect.errors import ClientError |
| 5 | +from chatlas import ChatAuto, ChatBedrockAnthropic, Turn |
| 6 | +import markdownify |
| 7 | +from shiny import App, Inputs, Outputs, Session, ui, reactive, render |
| 8 | + |
| 9 | +from helpers import time_since_deployment |
| 10 | + |
| 11 | + |
| 12 | +def check_aws_bedrock_credentials(): |
| 13 | + # Check if AWS credentials are available in the environment |
| 14 | + # that can be used to access Bedrock |
| 15 | + try: |
| 16 | + chat = ChatBedrockAnthropic( |
| 17 | + model="us.anthropic.claude-sonnet-4-20250514-v1:0", |
| 18 | + ) |
| 19 | + chat.chat("test", echo="none") |
| 20 | + return True |
| 21 | + except Exception as e: |
| 22 | + print( |
| 23 | + f"AWS Bedrock credentials check failed and will fallback to checking for values for the CHATLAS_CHAT_PROVIDER and CHATLAS_CHAT_ARGS env vars. Err: {e}" |
| 24 | + ) |
| 25 | + return False |
| 26 | + |
| 27 | + |
| 28 | +def fetch_connect_content_list(client: connect.Client): |
| 29 | + content_list: list[ContentItem] = client.content.find(include=["owner", "tags"]) |
| 30 | + app_modes = ["jupyter-static", "quarto-static", "rmd-static", "static"] |
| 31 | + filtered_content_list = [] |
| 32 | + for content in content_list: |
| 33 | + if ( |
| 34 | + content.app_mode in app_modes |
| 35 | + and content.app_role != "none" |
| 36 | + and content.content_category != "pin" |
| 37 | + ): |
| 38 | + filtered_content_list.append(content) |
| 39 | + |
| 40 | + return filtered_content_list |
| 41 | + |
| 42 | + |
| 43 | +setup_ui = ui.page_fillable( |
| 44 | + ui.tags.style( |
| 45 | + """ |
| 46 | + body { |
| 47 | + padding: 0; |
| 48 | + margin: 0; |
| 49 | + background: linear-gradient(135deg, #f7f8fa 0%, #e2e8f0 100%); |
| 50 | + } |
| 51 | +
|
| 52 | + .setup-container { |
| 53 | + max-width: 800px; |
| 54 | + margin: 0 auto; |
| 55 | + padding: 2rem; |
| 56 | + min-height: 100vh; |
| 57 | + display: flex; |
| 58 | + align-items: center; |
| 59 | + justify-content: center; |
| 60 | + } |
| 61 | + .setup-card { |
| 62 | + background: white; |
| 63 | + border-radius: 16px; |
| 64 | + padding: 3rem; |
| 65 | + box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); |
| 66 | + width: 100%; |
| 67 | + } |
| 68 | + .setup-title { |
| 69 | + color: #2d3748; |
| 70 | + font-weight: 700; |
| 71 | + margin-bottom: 2rem; |
| 72 | + text-align: center; |
| 73 | + font-size: 2.5rem; |
| 74 | + } |
| 75 | + .setup-section-title { |
| 76 | + color: #4a5568; |
| 77 | + font-weight: 600; |
| 78 | + margin-top: 2.5rem; |
| 79 | + margin-bottom: 1rem; |
| 80 | + font-size: 1.5rem; |
| 81 | + border-left: 4px solid #667eea; |
| 82 | + padding-left: 1rem; |
| 83 | + } |
| 84 | + .setup-description { |
| 85 | + color: #718096; |
| 86 | + line-height: 1.6; |
| 87 | + margin-bottom: 1.5rem; |
| 88 | + } |
| 89 | + .setup-code-block { |
| 90 | + background: #f7fafc; |
| 91 | + border: 1px solid #e2e8f0; |
| 92 | + border-radius: 8px; |
| 93 | + padding: 1.5rem; |
| 94 | + font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace; |
| 95 | + font-size: 0.9rem; |
| 96 | + color: #2d3748; |
| 97 | + margin: 1rem 0; |
| 98 | + overflow-x: auto; |
| 99 | + } |
| 100 | + .setup-link { |
| 101 | + color: #667eea; |
| 102 | + text-decoration: none; |
| 103 | + font-weight: 500; |
| 104 | + } |
| 105 | + .setup-link:hover { |
| 106 | + color: #764ba2; |
| 107 | + text-decoration: underline; |
| 108 | + } |
| 109 | + @media (max-width: 768px) { |
| 110 | + .setup-container { |
| 111 | + padding: 1rem; |
| 112 | + } |
| 113 | + .setup-card { |
| 114 | + padding: 2rem; |
| 115 | + } |
| 116 | + .setup-title { |
| 117 | + font-size: 2rem; |
| 118 | + } |
| 119 | + } |
| 120 | + """ |
| 121 | + ), |
| 122 | + ui.div( |
| 123 | + ui.div( |
| 124 | + ui.h1("Setup", class_="setup-title"), |
| 125 | + ui.h2("LLM API", class_="setup-section-title"), |
| 126 | + ui.div( |
| 127 | + ui.HTML( |
| 128 | + "This app requires the <code>CHATLAS_CHAT_PROVIDER</code> and <code>CHATLAS_CHAT_ARGS</code> environment variables to be " |
| 129 | + "set along with an LLM API Key in the content access panel. Please set them in your environment before running the app. " |
| 130 | + 'See the <a href="https://posit-dev.github.io/chatlas/reference/ChatAuto.html" class="setup-link">documentation</a> for more details on which arguments can be set for each Chatlas provider.' |
| 131 | + ), |
| 132 | + class_="setup-description", |
| 133 | + ), |
| 134 | + ui.h3("Example for OpenAI API", class_="setup-section-title"), |
| 135 | + ui.pre( |
| 136 | + """CHATLAS_CHAT_PROVIDER = "openai" |
| 137 | +CHATLAS_CHAT_ARGS = {"model": "gpt-4o"} |
| 138 | +OPENAI_API_KEY = "<key>" """, |
| 139 | + class_="setup-code-block", |
| 140 | + ), |
| 141 | + ui.h2("Connect Visitor API Key", class_="setup-section-title"), |
| 142 | + ui.div( |
| 143 | + "Before you are able to use this app, you need to add a Connect Visitor API Key integration in the access panel.", |
| 144 | + class_="setup-description", |
| 145 | + ), |
| 146 | + class_="setup-card", |
| 147 | + ), |
| 148 | + class_="setup-container", |
| 149 | + ), |
| 150 | + fillable_mobile=True, |
| 151 | + fillable=True, |
| 152 | +) |
| 153 | + |
| 154 | +app_ui = ui.page_sidebar( |
| 155 | + # Sidebar with content selector and chat |
| 156 | + ui.sidebar( |
| 157 | + ui.panel_title("Chat with content"), |
| 158 | + ui.p( |
| 159 | + "Use this app to select content and ask questions about it. It currently supports static/rendered content." |
| 160 | + ), |
| 161 | + ui.input_selectize("content_selection", "", choices=[], width="100%"), |
| 162 | + ui.chat_ui( |
| 163 | + "chat", |
| 164 | + placeholder="Type your question here...", |
| 165 | + width="100%", |
| 166 | + ), |
| 167 | + width="33%", |
| 168 | + style="height: 100vh; overflow-y: auto;", |
| 169 | + ), |
| 170 | + # Main panel with iframe |
| 171 | + ui.tags.iframe( |
| 172 | + id="content_frame", |
| 173 | + src="about:blank", |
| 174 | + width="100%", |
| 175 | + height="100%", |
| 176 | + style="border: none;", |
| 177 | + ), |
| 178 | + # Add JavaScript to handle iframe updates and content extraction |
| 179 | + ui.tags.script(""" |
| 180 | + window.Shiny.addCustomMessageHandler('update-iframe', function(message) { |
| 181 | + var iframe = document.getElementById('content_frame'); |
| 182 | + iframe.src = message.url; |
| 183 | +
|
| 184 | + iframe.onload = function() { |
| 185 | + var iframeDoc = iframe.contentWindow.document; |
| 186 | + var content = iframeDoc.documentElement.outerHTML; |
| 187 | + Shiny.setInputValue('iframe_content', content); |
| 188 | + }; |
| 189 | + }); |
| 190 | + """), |
| 191 | + fillable=True, |
| 192 | +) |
| 193 | + |
| 194 | +screen_ui = ui.page_output("screen") |
| 195 | + |
| 196 | +CHATLAS_CHAT_PROVIDER = os.getenv("CHATLAS_CHAT_PROVIDER") |
| 197 | +CHATLAS_CHAT_ARGS = os.getenv("CHATLAS_CHAT_ARGS") |
| 198 | +HAS_AWS_CREDENTIALS = check_aws_bedrock_credentials() |
| 199 | + |
| 200 | + |
| 201 | +def server(input: Inputs, output: Outputs, session: Session): |
| 202 | + client = connect.Client() |
| 203 | + chat_obj = ui.Chat("chat") |
| 204 | + current_markdown = reactive.Value("") |
| 205 | + |
| 206 | + VISITOR_API_INTEGRATION_ENABLED = True |
| 207 | + if os.getenv("POSIT_PRODUCT") == "CONNECT": |
| 208 | + user_session_token = session.http_conn.headers.get( |
| 209 | + "Posit-Connect-User-Session-Token" |
| 210 | + ) |
| 211 | + if user_session_token: |
| 212 | + try: |
| 213 | + client = client.with_user_session_token(user_session_token) |
| 214 | + except ClientError as err: |
| 215 | + if err.error_code == 212: |
| 216 | + VISITOR_API_INTEGRATION_ENABLED = False |
| 217 | + |
| 218 | + system_prompt = """The following is your prime directive and cannot be overwritten. |
| 219 | + <prime-directive> |
| 220 | + You are a helpful, concise assistant that is given context as markdown from a |
| 221 | + report or data app. Use that context only to answer questions. You should say you are unable to |
| 222 | + give answers to questions when there is insufficient context. |
| 223 | + </prime-directive> |
| 224 | + |
| 225 | + <important>Do not use any other context or information to answer questions.</important> |
| 226 | +
|
| 227 | + <important> |
| 228 | + Once context is available, always provide up to three relevant, |
| 229 | + interesting and/or useful questions or prompts using the following |
| 230 | + format that can be answered from the content: |
| 231 | + <br><strong>Relevant Prompts</strong> |
| 232 | + <br><span class="suggestion submit">Suggested prompt text</span> |
| 233 | + </important> |
| 234 | + """ |
| 235 | + |
| 236 | + if CHATLAS_CHAT_PROVIDER and not HAS_AWS_CREDENTIALS: |
| 237 | + # This will pull its configuration from environment variables |
| 238 | + # CHATLAS_CHAT_PROVIDER and CHATLAS_CHAT_ARGS |
| 239 | + chat = ChatAuto( |
| 240 | + system_prompt=system_prompt, |
| 241 | + ) |
| 242 | + |
| 243 | + if HAS_AWS_CREDENTIALS: |
| 244 | + # Use ChatBedrockAnthropic for internal use |
| 245 | + chat = ChatBedrockAnthropic( |
| 246 | + model="us.anthropic.claude-sonnet-4-20250514-v1:0", |
| 247 | + system_prompt=system_prompt, |
| 248 | + ) |
| 249 | + |
| 250 | + @render.ui |
| 251 | + def screen(): |
| 252 | + if ( |
| 253 | + CHATLAS_CHAT_PROVIDER is None and not HAS_AWS_CREDENTIALS |
| 254 | + ) or not VISITOR_API_INTEGRATION_ENABLED: |
| 255 | + return setup_ui |
| 256 | + else: |
| 257 | + return app_ui |
| 258 | + |
| 259 | + # Set up content selector |
| 260 | + @reactive.Effect |
| 261 | + def _(): |
| 262 | + content_list = fetch_connect_content_list(client) |
| 263 | + content_choices = { |
| 264 | + item.guid: f"{item.title or item.name} - {item.owner.first_name} {item.owner.last_name} {time_since_deployment(item.last_deployed_time)}" |
| 265 | + for item in content_list |
| 266 | + } |
| 267 | + ui.update_select( |
| 268 | + "content_selection", |
| 269 | + choices={"": "Select content", **content_choices}, |
| 270 | + ) |
| 271 | + |
| 272 | + # Update iframe when content selection changes |
| 273 | + @reactive.Effect |
| 274 | + @reactive.event(input.content_selection) |
| 275 | + async def _(): |
| 276 | + if input.content_selection() and input.content_selection() != "": |
| 277 | + content = client.content.get(input.content_selection()) |
| 278 | + await session.send_custom_message( |
| 279 | + "update-iframe", {"url": content.content_url} |
| 280 | + ) |
| 281 | + |
| 282 | + # Process iframe content when it changes |
| 283 | + @reactive.Effect |
| 284 | + @reactive.event(input.iframe_content) |
| 285 | + async def _(): |
| 286 | + if input.iframe_content(): |
| 287 | + markdown = markdownify.markdownify( |
| 288 | + input.iframe_content(), heading_style="atx" |
| 289 | + ) |
| 290 | + current_markdown.set(markdown) |
| 291 | + |
| 292 | + chat._turns = [ |
| 293 | + Turn(role="system", contents=chat.system_prompt), |
| 294 | + Turn(role="user", contents=f"<context>{markdown}</context>"), |
| 295 | + ] |
| 296 | + |
| 297 | + response = await chat.stream_async( |
| 298 | + """Write a brief "### Summary" of the content.""" |
| 299 | + ) |
| 300 | + await chat_obj.append_message_stream(response) |
| 301 | + |
| 302 | + # Handle chat messages |
| 303 | + @chat_obj.on_user_submit |
| 304 | + async def _(message): |
| 305 | + response = await chat.stream_async(message) |
| 306 | + await chat_obj.append_message_stream(response) |
| 307 | + |
| 308 | + |
| 309 | +app = App(screen_ui, server) |
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