// routes/tenant/documents/index.tsx
import { define } from "../../../utils.ts";
import { page } from "fresh";
import { getLeasesByTenant } from "../../../services/leaseService.ts";
import {
  createLeaseDocument,
  getDocumentsByLease,
  signDocumentAsTenant,
} from "../../../services/leaseDocumentService.ts";
import { isE2EEnabled } from "../../../services/e2eFixtures.ts";
import { Lease, LeaseDocument } from "../../../db/interfaces.ts";

function formatDate(value?: number | null): string {
  if (!value) return "-";
  return new Date(value).toLocaleDateString();
}

export const handler = define.handlers({
  async GET(ctx) {
    const { user_id } = ctx.state.data;

    if (!user_id) {
      return new Response("", {
        status: 302,
        headers: { Location: "/auth/login" },
      });
    }

    try {
      const leases = await getLeasesByTenant(user_id);
      const documents: Record<string, LeaseDocument[]> = {};

      for (const lease of leases || []) {
        if (!lease.id) continue;
        documents[lease.id] = await getDocumentsByLease(lease.id);
      }

      return page({
        leases,
        documents,
        isE2E: isE2EEnabled(),
      });
    } catch (error) {
      console.error("Error loading tenant documents:", error);
      return page({
        error: "Failed to load documents",
      });
    }
  },

  async POST(ctx) {
    const { user_id } = ctx.state.data;

    if (!user_id) {
      return new Response("", {
        status: 302,
        headers: { Location: "/auth/login" },
      });
    }

    const formData = await ctx.req.formData();
    const action = (formData.get("action") || "").toString();
    const documentId = (formData.get("document_id") || "").toString();
    const leaseId = (formData.get("lease_id") || "").toString();

    if (action === "sign" && documentId) {
      await signDocumentAsTenant(documentId);
    }

    if (action === "add_sample" && leaseId) {
      await createLeaseDocument(
        leaseId,
        "receipt",
        "/static/sample-receipt.pdf",
        "sample-receipt.pdf",
      );
    }

    return new Response("", {
      status: 302,
      headers: { Location: "/tenant/documents" },
    });
  },
});

export default define.page(function TenantDocuments({ data }) {
  const { leases, documents, error, isE2E } = data as {
    leases: Lease[];
    documents: Record<string, LeaseDocument[]>;
    error?: string;
    isE2E?: boolean;
  };

  return (
    <div class="min-h-screen bg-gray-50">
      <div class="bg-white shadow">
        <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
          <div class="flex justify-between items-center py-6">
            <div>
              <h1 class="text-3xl font-bold text-gray-900">Documents</h1>
              <p class="mt-1 text-sm text-gray-500">
                Access your lease agreements, receipts, and notices
              </p>
            </div>
            <div class="flex space-x-3">
              <a
                href="/tenant/dashboard"
                class="inline-flex items-center px-4 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50"
              >
                Back to Dashboard
              </a>
            </div>
          </div>
        </div>
      </div>

      <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
        {error && (
          <div class="mb-6 bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded">
            {error}
          </div>
        )}

        {(leases || []).map((lease) => {
          const leaseDocs = documents?.[lease.id] || [];
          return (
            <div key={lease.id} class="mb-8 bg-white shadow rounded-lg">
              <div class="px-6 py-4 border-b border-gray-200">
                <div class="flex items-center justify-between">
                  <div>
                    <h2 class="text-lg font-semibold text-gray-900">
                      {lease.property_address || "Lease Documents"}
                    </h2>
                    <p class="text-sm text-gray-500">
                      Lease ID: {lease.id}
                    </p>
                  </div>
                  {isE2E && (
                    <form method="POST">
                      <input type="hidden" name="action" value="add_sample" />
                      <input type="hidden" name="lease_id" value={lease.id} />
                      <button
                        type="submit"
                        class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700"
                      >
                        Add Sample Receipt
                      </button>
                    </form>
                  )}
                </div>
              </div>
              <div class="p-6">
                <table class="min-w-full divide-y divide-gray-200">
                  <thead class="bg-gray-50">
                    <tr>
                      <th class="px-4 py-2 text-left text-xs font-medium text-gray-500 uppercase">
                        Type
                      </th>
                      <th class="px-4 py-2 text-left text-xs font-medium text-gray-500 uppercase">
                        File
                      </th>
                      <th class="px-4 py-2 text-left text-xs font-medium text-gray-500 uppercase">
                        Tenant Status
                      </th>
                      <th class="px-4 py-2 text-left text-xs font-medium text-gray-500 uppercase">
                        Landlord Status
                      </th>
                      <th class="px-4 py-2 text-left text-xs font-medium text-gray-500 uppercase">
                        Signed
                      </th>
                      <th class="px-4 py-2"></th>
                    </tr>
                  </thead>
                  <tbody class="divide-y divide-gray-200">
                    {leaseDocs.length > 0
                      ? (
                        leaseDocs.map((doc) => (
                          <tr key={doc.id}>
                            <td class="px-4 py-2 text-sm text-gray-900 capitalize">
                              {doc.document_type || "document"}
                            </td>
                            <td class="px-4 py-2 text-sm text-blue-600">
                              <a href={doc.file_url || "#"}>
                                {doc.file_name || "View"}
                              </a>
                            </td>
                            <td class="px-4 py-2 text-sm text-gray-900">
                              {doc.signed_by_tenant ? "Signed" : "Pending"}
                            </td>
                            <td class="px-4 py-2 text-sm text-gray-900">
                              {doc.signed_by_landlord ? "Signed" : "Pending"}
                            </td>
                            <td class="px-4 py-2 text-sm text-gray-900">
                              {formatDate(doc.signature_date)}
                            </td>
                            <td class="px-4 py-2 text-sm">
                              {!doc.signed_by_tenant && (
                                <form method="POST">
                                  <input
                                    type="hidden"
                                    name="action"
                                    value="sign"
                                  />
                                  <input
                                    type="hidden"
                                    name="document_id"
                                    value={doc.id}
                                  />
                                  <button
                                    type="submit"
                                    class="text-blue-600 hover:text-blue-500"
                                  >
                                    Sign as Tenant
                                  </button>
                                </form>
                              )}
                            </td>
                          </tr>
                        ))
                      )
                      : (
                        <tr>
                          <td
                            colspan={6}
                            class="px-4 py-4 text-center text-sm text-gray-500"
                          >
                            No documents available yet
                          </td>
                        </tr>
                      )}
                  </tbody>
                </table>
              </div>
            </div>
          );
        })}
      </div>
    </div>
  );
});