// routes/api/lease/request-approval.ts
import { define } from "../../../utils.ts";
import { SessionCookie } from "../../auth/callback.ts";
import { requestLeaseApproval } from "../../../services/leaseService.ts";
import {
  getTenantInviteById,
  updateTenantInvite,
} from "../../../services/tenantInviteService.ts";
import { getPropertyById } from "../../../services/propertyService.ts";
import { getUserById } from "../../../services/userService.ts";
import {
  sendLeaseApprovalRequest,
} from "../../../services/notificationService.ts";

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

      if (!user_id) {
        return new Response(
          JSON.stringify({ error: "Unauthorized" }),
          {
            status: 401,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

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

      if (contentType.includes("application/json")) {
        data = await ctx.req.json();
      } else {
        const formData = await ctx.req.formData();
        for (const [key, value] of formData.entries()) {
          data[key] = typeof value === "string" ? value : String(value);
        }
      }

      const invite_id = (data.invite_id as string) ||
        (data["invite_id"] as string);
      const property_id = (data.property_id as string) ||
        (data["property_id"] as string);

      if (!invite_id || !property_id) {
        return new Response(
          JSON.stringify({
            error: "invite_id and property_id are required",
          }),
          {
            status: 400,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      const invite = await getTenantInviteById(invite_id);
      if (!invite) {
        return new Response(
          JSON.stringify({ error: "Invite not found" }),
          {
            status: 404,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      const property = await getPropertyById(property_id);
      if (!property) {
        return new Response(
          JSON.stringify({ error: "Property not found" }),
          {
            status: 404,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      const leaseResult = await requestLeaseApproval(
        user_id,
        property_id,
        invite_id,
      );

      if (!leaseResult || leaseResult.length === 0) {
        return new Response(
          JSON.stringify({ error: "Failed to create lease request" }),
          {
            status: 500,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      const lease = leaseResult[0];

      await updateTenantInvite(invite_id, { lease_id: lease.id });

      if (invite.landlord_id) {
        const tenant = await getUserById(user_id);
        const landlord = await getUserById(invite.landlord_id);

        await sendLeaseApprovalRequest(invite.landlord_id, {
          lease_id: lease.id,
          property_address: property.address_1
            ? `${property.address_1}, ${property.city}, ${property.state}`
            : property.title || "Property",
          tenant_name: tenant?.name || "Tenant",
          landlord_name: landlord?.name || "Landlord",
          monthly_rent: property.monthly_rent ?? undefined,
        });
      }
        await sendLeaseApprovalRequest(invite.landlord_id, {
          lease_id: lease.id,
          property_address: property.address_1
            ? `${property.address_1}, ${property.city}, ${property.state}`
            : property.title || "Property",
          tenant_name: tenant?.name || "Tenant",
          landlord_name: landlord?.name || "Landlord",
          monthly_rent: property.monthly_rent,
        });
      }

      return new Response(
        JSON.stringify({
          success: true,
          lease,
        }),
        {
          status: 200,
          headers: { "Content-Type": "application/json" },
        },
      );
    } catch (error) {
      console.error("Error requesting lease approval:", error);
      return new Response(
        JSON.stringify({ error: String(error) }),
        {
          status: 500,
          headers: { "Content-Type": "application/json" },
        },
      );
    }
  },
});