// routes/api/create/message.ts
import { define } from "../../../utils.ts";
import { createMessage } from "../../../services/messageService.ts";
import { SessionCookie } from "../../auth/callback.ts";

export const handler = define.handlers({
  async POST(ctx) {
    try {
      const stateData: SessionCookie = ctx.state.data;
      const { user_id } = stateData;

      const contentType = ctx.req.headers.get("content-type") || "";
      let data: Record<string, string> = {};
      let sender: string | null = null;
      let isJsonRequest = false;

      // Handle both JSON and form data
      if (contentType.includes("application/json")) {
        isJsonRequest = true;
        const jsonData = await ctx.req.json();
        data = jsonData;
      } else {
        const formData = await ctx.req.formData();
        sender = formData.get("sender")?.toString() || null;

        data = {
          lease_id: formData.get("lease_id")?.toString() || "",
          recipient_id: formData.get("recipient_id")?.toString() || "",
          message_type: formData.get("message_type")?.toString() || "",
          subject: formData.get("subject")?.toString() || "",
          content: formData.get("content")?.toString() || "",
        };
      }

      const lease_id = data.lease_id || null;
      const recipient_id = data.recipient_id;
      const message_type = data.message_type;
      const subject = data.subject;
      const content = data.content;

      if (!recipient_id || !message_type || !subject || !content) {
        return new Response(
          JSON.stringify({
            error:
              "Recipient ID, message type, subject, and encrypted content are required",
          }),
          {
            status: 400,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      const [created] = await createMessage(
        lease_id,
        user_id, // sender_id
        recipient_id,
        message_type,
        subject,
        content,
      );

      // Return appropriate response based on request type
      if (isJsonRequest) {
        return new Response(
          JSON.stringify({
            success: true,
            message: created ?? null,
          }),
          {
            status: 200,
            headers: { "Content-Type": "application/json" },
          },
        );
      } else {
        // Redirect back to the sender URL
        const senderPath = sender?.toString() || "/";
        let redirectUrl = senderPath;
        try {
          if (senderPath.startsWith("/")) {
            const url = new URL(ctx.req.url);
            redirectUrl = url.origin + senderPath;
          }
        } catch (_) {
          // fallback: just use senderPath
        }
        return Response.redirect(redirectUrl, 303);
      }
    } catch (e) {
      return new Response(JSON.stringify({ error: e }), {
        status: 500,
        headers: { "Content-Type": "application/json" },
      });
    }
  },
});