// routes/api/update/maintenance_request.ts
import { define } from "../../../utils.ts";
import {
  updateRequestPriority,
  updateRequestStatus,
} from "../../../services/maintenanceRequestService.ts";
import { SessionCookie } from "../../auth/callback.ts";

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

      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 = {
          id: formData.get("id")?.toString() || "",
          status: formData.get("status")?.toString() || "",
          priority: formData.get("priority")?.toString() || "",
        };
      }

      const id = data.id;
      const status = data.status;
      const priority = data.priority;

      if (!id) {
        return new Response(
          JSON.stringify({
            error: "Maintenance request ID is required",
          }),
          {
            status: 400,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      let result;

      // Update status if provided
      if (status) {
        if (
          !["open", "in_progress", "completed", "cancelled"].includes(status)
        ) {
          return new Response(
            JSON.stringify({
              error:
                "Status must be 'open', 'in_progress', 'completed', or 'cancelled'",
            }),
            {
              status: 400,
              headers: { "Content-Type": "application/json" },
            },
          );
        }
        result = await updateRequestStatus(
          id,
          status as "open" | "in_progress" | "completed" | "cancelled",
        );
      }

      // Update priority if provided
      if (priority) {
        if (!["low", "medium", "high", "urgent"].includes(priority)) {
          return new Response(
            JSON.stringify({
              error: "Priority must be 'low', 'medium', 'high', or 'urgent'",
            }),
            {
              status: 400,
              headers: { "Content-Type": "application/json" },
            },
          );
        }
        result = await updateRequestPriority(
          id,
          priority as "low" | "medium" | "high" | "urgent",
        );
      }

      if (!result) {
        return new Response(
          JSON.stringify({
            error: "No valid update fields provided",
          }),
          {
            status: 400,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      // Return appropriate response based on request type
      if (isJsonRequest) {
        return new Response(
          JSON.stringify({
            success: true,
            maintenance_request: result[0],
          }),
          {
            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" },
      });
    }
  },
});