import type { ActionTemplate, ActionContext, ActionResult } from "../types";

export const config: ActionTemplate = {
  id: "unique_action_id",                    // kebab-case, user-specific
  name: "Human Readable Name",                // For UI display
  description: "What this action does",       // Explain the operation
  icon: "📨",                                 // Optional emoji icon
  parameterSchema: {
    type: "object",
    properties: {
      paramName: {
        type: "string",                      // or "number", "boolean"
        description: "Parameter description",
        enum: ["option1", "option2"],        // Optional: restrict values
        default: "defaultValue"              // Optional: default value
      }
    },
    required: ["paramName"]                  // List required parameters
  }
};

export async function handler(
  params: Record<string, any>,
  context: ActionContext
): Promise<ActionResult> {
  const { paramName } = params;

  context.log(`Starting action: ${config.name}`);

  try {
    // 1. Perform operations using context methods
    // 2. Use AI for intelligent processing if needed
    // 3. Update emails, send emails, etc.

    context.notify("Action completed successfully", {
      type: "success",
      priority: "normal"
    });

    return {
      success: true,
      message: "Action completed successfully",
      data: { /* optional structured data */ },
      refreshInbox: true  // Optional: refresh inbox after action
    };
  } catch (error: any) {
    context.log(`Action failed: ${error}`, "error");
    return {
      success: false,
      message: `Failed: ${error.message}`
    };
  }
}

// Email API operations
const emails = await context.emailAPI.getInbox({ limit: 30, includeRead: false });
const results = await context.emailAPI.searchEmails({ from: "sender@example.com" });
const results = await context.emailAPI.searchWithGmailQuery("from:sender after:2024/01/01");
const emails = await context.emailAPI.getEmailsByIds(["id1", "id2"]);
const email = await context.emailAPI.getEmailById("email-id");

// Direct email operations
await context.archiveEmail(emailId);
await context.starEmail(emailId);
await context.unstarEmail(emailId);
await context.markAsRead(emailId);
await context.markAsUnread(emailId);
await context.addLabel(emailId, "label-name");
await context.removeLabel(emailId, "label-name");

// Send emails
const result = await context.sendEmail({
  to: "recipient@example.com",
  subject: "Email subject",
  body: "Email body content",
  cc: "cc@example.com",           // Optional
  bcc: "bcc@example.com",          // Optional
  replyTo: "reply@example.com"     // Optional
});

// AI-powered processing
const analysis = await context.callAgent<ResultType>({
  prompt: "Analyze this email and extract key info...",
  systemPrompt: "You are an expert at...",  // Optional
  tools: ["Read", "WebSearch"],              // Optional
  maxTokens: 2000                            // Optional
});

// Session messaging (inject into chat)
context.addUserMessage("User said this");
context.addAssistantMessage("Assistant responds");
context.addSystemMessage("System notification");

// Notifications
context.notify("Operation completed", {
  priority: "high" | "normal" | "low",
  type: "info" | "success" | "warning" | "error"
});

// External API access
const response = await context.fetch("https://api.example.com/data");
const data = await response.json();

// Logging (visible in server logs)
context.log("Info message", "info");
context.log("Warning message", "warn");
context.log("Error message", "error");

return {
  success: true,                          // Required: boolean
  message: "Human-readable result",       // Required: string
  data: { key: "value" },                // Optional: structured data
  suggestedActions: [],                   // Optional: follow-up actions
  refreshInbox: true                      // Optional: refresh inbox
};

parameterSchema: {
  type: "object",
  properties: {
    // String parameter
    emailId: {
      type: "string",
      description: "Email ID to process"
    },

    // Number parameter with default
    daysOld: {
      type: "number",
      description: "Number of days old",
      default: 30
    },

    // Enum parameter (dropdown)
    priority: {
      type: "string",
      description: "Priority level",
      enum: ["P0 - Critical", "P1 - High", "P2 - Medium", "P3 - Low"]
    },

    // Boolean parameter
    sendNotification: {
      type: "boolean",
      description: "Send notification when complete"
    }
  },
  required: ["emailId", "priority"]  // List required params
}

const body = `Hi ${recipientName},
Your invoice ${invoiceNumber} for ${amount} is ${daysPastDue} days past due...`;

await context.sendEmail({
  to: "accounts.payable@acmecorp.com",
  subject: `Payment Reminder: Invoice ${invoiceNumber}`,
  body
});

const emails = await context.emailAPI.searchWithGmailQuery(query);
for (const email of emails) {
  await context.archiveEmail(email.messageId);
}
return { success: true, message: `Archived ${emails.length} emails` };

const email = await context.emailAPI.getEmailById(emailId);
const analysis = await context.callAgent({
  prompt: `Analyze this bug report: ${email.body}...`,
  maxTokens: 1000
});
await context.sendEmail({ to: "engineering@company.com", ... });

const email = await context.emailAPI.getEmailById(emailId);
const analysis = await context.callAgent({ /* analyze */ });
await context.sendEmail({
  to: "team@company.com",
  subject: `[${priority}] ${email.subject}`,
  body: `AI Analysis:\n${analysis}\n\nOriginal:\n${email.body}`
});
await context.addLabel(emailId, "FORWARDED");

import type { ActionTemplate, ActionContext, ActionResult } from "../types";

// ActionTemplate: Template metadata and parameter schema
// ActionContext: Runtime context with all capabilities
// ActionResult: Return type for handler function

User: "I need to follow up on the ACME invoice"
Agent: [searches emails, finds Invoice #2024-001 is 15 days overdue]
Agent: Creates action instance with parameters:
  {
    templateId: "send_payment_reminder_acme",
    params: { invoiceNumber: "INV-2024-001", amount: "$5,000", daysPastDue: 15 }
  }
User: [sees button "Send payment reminder to ACME Corp for Invoice #2024-001"]
User: [clicks button]
Action: Executes, sends email, returns "Payment reminder sent to ACME Corp"