diagram.d2

direction: down

WhatsAppUser: "WhatsApp User" {
  WhatsAppApp: "WhatsApp"
}

CLIUser: "CLI User" {
  CLI: "curl"
}

TwilioAPI: "Twilio API"
FastAPI: "FastAPI Application" {
  Endpoint1: "/"
  Endpoint2: "/summarize"
  Endpoint3: "/webhook"
}
Summarizer: "Summarizer Component"
WebBaseLoader: "WebBaseLoader (LangChain)"
CohereAPI: "Cohere API"
WebPage: "Web Page"

WhatsAppUser -> WhatsAppApp: "Sends message with URL"
WhatsAppApp -> TwilioAPI: "Message received"
TwilioAPI -> FastAPI: "Webhook triggered (/webhook)"

CLIUser -> FastAPI: "Sends URL to /summarize"

FastAPI -> Summarizer: "Extracts URL and processes"
Summarizer -> WebBaseLoader: "Loads content"
WebBaseLoader -> Summarizer: "Returns page content"
WebBaseLoader -> WebPage: "Fetches page content"
Summarizer -> CohereAPI: "Sends content for summarization"
CohereAPI -> Summarizer: "Returns summary"
Summarizer -> FastAPI: "Provides summary"
FastAPI -> TwilioAPI: "Sends summary"
TwilioAPI -> WhatsAppApp: "Message sent"
WhatsAppApp -> WhatsAppUser: "Delivers summary"
FastAPI -> CLIUser: "Returns summary"