import React, { useState, useEffect, Suspense, lazy } from "react";
import { toast } from 'react-toastify';
import { DataTable } from "primereact/datatable";
import { Column } from "primereact/column";
import { Dropdown } from "primereact/dropdown";
import { Button } from "@mui/joy";
import { Dialog } from "primereact/dialog";
import { confirmDialog, ConfirmDialog } from "primereact/confirmdialog";
import BreadcrumbNav from "./BreadcrumbNav";


const STATUS_OPTIONS = ["Pending", "Completed", "Failed"];
const TYPE_OPTIONS = ["Artist", "Album", "Track"];

const initialRequests = [
  {
    id: 1,
    type: "Artist",
    artist: "Bring Me The Horizon",
    album: "",
    track: "",
    status: "Pending",
    details: {
      requestedBy: "codey",
      timestamp: "2025-07-01T12:00:00Z",
      comments: "",
    },
  },
  {
    id: 2,
    type: "Track",
    artist: "We Butter The Bread With Butter",
    album: "Das Album",
    track: "20 km/h",
    status: "Failed",
    details: {
      requestedBy: "codey",
      timestamp: "2025-06-11T09:00:00Z",
      comments: "Track not found in external database.",
    },
  },
  {
    id: 3,
    type: "Track",
    artist: "We Butter The Bread With Butter",
    album: "Das Album",
    track: "20 km/h",
    status: "Completed",
    details: {
      requestedBy: "codey",
      timestamp: "2025-06-11T09:00:00Z",
      comments: "Track retrieved successfully.",
    },
  },
];


export default function RequestManagement() {
  const [requests, setRequests] = useState(initialRequests);
  const [filterType, setFilterType] = useState(null);
  const [filterStatus, setFilterStatus] = useState(null);
  const [filteredRequests, setFilteredRequests] = useState(initialRequests);
  const [selectedRequest, setSelectedRequest] = useState(null);
  const [isDialogVisible, setIsDialogVisible] = useState(false);


  useEffect(() => {
    let filtered = [...requests];
    if (filterType) {
      filtered = filtered.filter((r) => r.type === filterType);
    }
    if (filterStatus) {
      filtered = filtered.filter((r) => r.status === filterStatus);
    }
    setFilteredRequests(filtered);
  }, [filterType, filterStatus, requests]);

  const getStatusTextColor = (status) => {
    switch (status) {
      case "Pending":
        return "text-yellow-500";
      case "Completed":
        return "text-green-500";
      case "Failed":
        return "text-red-500";
      default:
        return "text-neutral-500";
    }
  };


  const confirmDelete = (requestId) => {
    confirmDialog({
      message: "Are you sure you want to delete this request?",
      header: "Confirm Delete",
      icon: "pi pi-exclamation-triangle",
      accept: () => deleteRequest(requestId),
    });
  };

  const deleteRequest = (requestId) => {
    setRequests((prev) => prev.filter((r) => r.id !== requestId));
    toast.success("Request deleted");
  };

  const statusBodyTemplate = (rowData) => {
    let colorClass = "";

    switch (rowData.status) {
      case "Pending":
        colorClass = "bg-yellow-300 text-yellow-900";
        break;
      case "Completed":
        colorClass = "bg-green-300 text-green-900";
        break;
      case "Failed":
        colorClass = "bg-red-300 text-red-900";
        break;
      default:
        colorClass = "bg-gray-300 text-gray-900";
    }

    return (
      <span
        className={`inline-block px-3 py-1 rounded-full font-semibold text-sm ${colorClass}`}
        aria-label={`Status: ${rowData.status}`}
      >
        {rowData.status}
      </span>
    );
  };

  const actionBodyTemplate = (rowData) => {
    return (
      <Button
        color="danger"
        size="sm"
        onClick={() => confirmDelete(rowData.id)}
        variant="outlined"
      >
        Delete
      </Button>
    );
  };

  return (
    <div
      className="bg-white dark:bg-neutral-900 dark:text-neutral-100 rounded-xl shadow-md border border-neutral-200 dark:border-neutral-700 p-6 space-y-6"
      style={{ display: "inline-block" }}
    >
      <style>{`
  .p-datatable {
    background-color: white;
    color: #1a1a1a;
    border-color: #ccc;
  }
  .p-datatable-header {
    background-color: #f9f9f9;
    color: #333;
    border-bottom: 1px solid #ccc;
  }
  .p-datatable-thead > tr > th {
    background-color: #f0f0f0;
    color: #222;
    border-bottom: 1px solid #ccc;
  }
  .p-datatable-tbody > tr > td {
    border-bottom: 1px solid #eee;
  }

  /* Dark mode improvements with brighter text */
  [data-theme="dark"] .p-datatable {
    background-color: #121212;
    color: #f0f0f0; /* brighter text */
    border-color: #333;
  }
  [data-theme="dark"] .p-datatable-header {
    background-color: #1f1f1f;
    color: #f5f5f5; /* brighter */
    border-bottom: 1px solid #444;
  }
  [data-theme="dark"] .p-datatable-thead > tr > th {
    background-color: #222222;
    color: #f5f5f5; /* brighter */
    border-bottom: 1px solid #555;
  }
  [data-theme="dark"] .p-datatable-tbody > tr {
    background-color: #1a1a1a;
    border-bottom: 1px solid #333;
    transition: background-color 0.2s ease;
    color: #f0f0f0; /* brighter text */
  }
  /* Zebra stripes */
  [data-theme="dark"] .p-datatable-tbody > tr:nth-child(odd) {
    background-color: #181818;
    color: #f0f0f0;
  }
  /* Hover effect */
  [data-theme="dark"] .p-datatable-tbody > tr:hover {
    background-color: #333333;
    cursor: pointer;
    color: #fff; /* brightest on hover */
  }

  /* Dropdown inside dark mode */
  [data-theme="dark"] .p-dropdown,
  [data-theme="dark"] .p-dropdown-label,
  [data-theme="dark"] .p-dropdown-panel,
  [data-theme="dark"] .p-dropdown-item {
    background-color: #2a2a2a !important;
    color: #f0f0f0 !important; /* brighter */
  }

  /* Buttons */
  [data-theme="dark"] .p-button {
    background-color: transparent !important;
    color: #f0f0f0 !important; /* brighter */
    border-color: #555 !important;
    transition: background-color 0.2s ease;
  }
  [data-theme="dark"] .p-button:hover {
    background-color: #555 !important;
    color: #fff !important;
  }
  [data-theme="dark"] .p-button.p-button-danger {
    border-color: #ff4d4f !important;
    color: #ff4d4f !important;
  }
  [data-theme="dark"] .p-button.p-button-danger:hover {
    background-color: #ff4d4f !important;
    color: #fff !important;
  }
  /* ===== PrimeReact Paginator Light Mode ===== */
  .p-paginator {
    background-color: #fff;
    color: #1a1a1a;
    border-top: 1px solid #ddd;
  }
  .p-paginator .p-paginator-page,
  .p-paginator .p-paginator-next,
  .p-paginator .p-paginator-prev {
    color: #1a1a1a;
    border: none;
    background: transparent;
  }
  .p-paginator .p-highlight {
    background-color: #007bff;
    color: white;
    border-radius: 6px;
  }

  /* ===== PrimeReact Paginator Dark Mode ===== */
  [data-theme="dark"] .p-paginator {
    background-color: #121212;
    color: #f0f0f0;
    border-top: 1px solid #333;
  }
  [data-theme="dark"] .p-paginator .p-paginator-page,
  [data-theme="dark"] .p-paginator .p-paginator-next,
  [data-theme="dark"] .p-paginator .p-paginator-prev {
    color: #ccc;
    border: none;
    background: transparent;
  }
  [data-theme="dark"] .p-paginator .p-paginator-page:hover,
  [data-theme="dark"] .p-paginator .p-paginator-next:hover,
  [data-theme="dark"] .p-paginator .p-paginator-prev:hover {
    background-color: #333;
    color: #fff;
    border-radius: 6px;
  }
  [data-theme="dark"] .p-paginator .p-highlight {
    background-color: #3b82f6; /* Tailwind blue-500 */
    color: white;
    border-radius: 6px;
  }
  .p-paginator .p-paginator-first,
  .p-paginator .p-paginator-last {
    color: #1a1a1a;
    background: transparent;
    border: none;
  }
  .p-paginator .p-paginator-first:hover,
  .p-paginator .p-paginator-last:hover {
    background-color: #f0f0f0;
    border-radius: 6px;
  }

  /* Dark Mode: First/Last page buttons */
  [data-theme="dark"] .p-paginator .p-paginator-first,
  [data-theme="dark"] .p-paginator .p-paginator-last {
    color: #ccc;
    background: transparent;
    border: none;
  }
  [data-theme="dark"] .p-paginator .p-paginator-first:hover,
  [data-theme="dark"] .p-paginator .p-paginator-last:hover {
    background-color: #333;
    color: #fff;
    border-radius: 6px;
  }
    /* ConfirmDialog - Light Theme */
.p-confirm-dialog {
  background-color: #ffffff;
  color: #1a1a1a;
  border: 1px solid #ccc;
}
.p-confirm-dialog .p-dialog-header {
  background-color: #f5f5f5;
  color: #222;
}
.p-confirm-dialog .p-dialog-content {
  background-color: #ffffff;
  color: #333;
}
.p-confirm-dialog .p-dialog-footer {
  background-color: #fafafa;
  border-top: 1px solid #ddd;
}
.p-confirm-dialog .p-button {
  border-radius: 0.5rem;
}

/* ConfirmDialog - Dark Theme */
[data-theme='dark'] .p-confirm-dialog {
  background-color: #2a2a2a;
  color: #e5e5e5;
  border: 1px solid #444;
}
[data-theme='dark'] .p-confirm-dialog .p-dialog-header {
  background-color: #1f1f1f;
  color: #ddd;
}
[data-theme='dark'] .p-confirm-dialog .p-dialog-content {
  background-color: #2a2a2a;
  color: #ccc;
}
[data-theme='dark'] .p-confirm-dialog .p-dialog-footer {
  background-color: #242424;
  border-top: 1px solid #333;
}
[data-theme='dark'] .p-confirm-dialog .p-button {
  background-color: transparent !important;
  color: #ddd !important;
  border-color: #555 !important;
}
[data-theme='dark'] .p-confirm-dialog .p-button.p-button-danger {
  color: #ff4d4f !important;
  border-color: #ff4d4f !important;
}
[data-theme='dark'] .p-dialog-title {
  color: #eee;
}
[data-theme='dark'] .p-dialog-header-icon {
  color: #ccc;
}
  /* PrimeReact Dialog Theming */
.p-dialog {
  background-color: #ffffff;
  color: #000000;
}

[data-theme="dark"] .p-dialog {
  background-color: #1e1e1e;
  color: #ffffff;
}

[data-theme="dark"] .p-dialog .p-dialog-header {
  background-color: #1e1e1e;
  border-bottom: 1px solid #444;
}

[data-theme="dark"] .p-dialog .p-dialog-content {
  background-color: #2a2a2a;
  color: #ffffff;
}

[data-theme="dark"] .p-dialog .p-dialog-footer {
  background-color: #1e1e1e;
  border-top: 1px solid #444;
}

  
  `}</style>
      <BreadcrumbNav currentPage="management" />
      <h2 className="text-3xl font-semibold" style={{ marginTop: 0 }}>
        Media Request Management
      </h2>

      <div className="flex flex-wrap gap-6 mb-6">
        <Dropdown
          value={filterType}
          options={[
            { label: "All Types", value: null },
            ...TYPE_OPTIONS.map((t) => ({ label: t, value: t })),
          ]}
          onChange={(e) => setFilterType(e.value)}
          placeholder="Filter by Type"
          className="min-w-[180px]"
        />
        <Dropdown
          value={filterStatus}
          options={[
            { label: "All Statuses", value: null },
            ...STATUS_OPTIONS.map((s) => ({ label: s, value: s })),
          ]}
          onChange={(e) => setFilterStatus(e.value)}
          placeholder="Filter by Status"
          className="min-w-[180px]"
        />
      </div>

      <DataTable
        value={filteredRequests}
        paginator
        rows={10}
        removableSort
        sortMode="multiple"
        emptyMessage="No requests found."
        rowClassName="!py-4"
        className="min-w-full bg-white dark:bg-neutral-900 text-neutral-900 dark:text-neutral-100"
        onRowClick={(e) => {
          setSelectedRequest(e.data);
          setIsDialogVisible(true);
        }}
      >
        <Column field="id" header="ID" sortable style={{ width: "5rem" }} />
        <Column field="type" header="Type" sortable />
        <Column field="artist" header="Artist" sortable />
        <Column field="album" header="Album" sortable />
        <Column field="track" header="Track" sortable />
        <Column
          field="status"
          header="Status"
          body={statusBodyTemplate}
          style={{ width: "10rem", textAlign: "center" }}
          sortable
        />
        <Column
          body={actionBodyTemplate}
          header="Actions"
          style={{ width: "9rem", textAlign: "center" }}
        />
      </DataTable>
      <ConfirmDialog />
      <Dialog
        header="Request Details"
        visible={isDialogVisible}
        style={{ width: "500px" }}
        onHide={() => setIsDialogVisible(false)}
        breakpoints={{ '960px': '95vw' }}
        modal
        dismissableMask
      >
        {selectedRequest && (
          <div className="space-y-4 text-sm">
            <p><strong>ID:</strong> {selectedRequest.id}</p>
            <p><strong>Type:</strong> {selectedRequest.type}</p>
            <p><strong>Artist:</strong> {selectedRequest.artist}</p>
            {selectedRequest.album && <p><strong>Album:</strong> {selectedRequest.album}</p>}
            {selectedRequest.track && <p><strong>Track:</strong> {selectedRequest.track}</p>}
            <p className="text-sm flex items-center gap-2">
              <span className="font-semibold">Status:</span>
              <span
                className={`px-2 py-0.5 rounded-full text-xs font-bold ${selectedRequest.status === "Pending"
                  ? "bg-yellow-100 text-yellow-800 dark:bg-yellow-800 dark:text-yellow-100"
                  : selectedRequest.status === "Completed"
                    ? "bg-green-100 text-green-800 dark:bg-green-800 dark:text-green-100"
                    : "bg-red-100 text-red-800 dark:bg-red-800 dark:text-red-100"
                  }`}
              >
                {selectedRequest.status}
              </span>
            </p>


            {selectedRequest.details && (
              <>
                <p><strong>Requested By:</strong> {selectedRequest.details.requestedBy}</p>
                <p><strong>Timestamp:</strong> {new Date(selectedRequest.details.timestamp).toLocaleString()}</p>
                {selectedRequest.details.comments && (
                  <p><strong>Comments:</strong> {selectedRequest.details.comments}</p>
                )}
              </>
            )}
          </div>
        )}
      </Dialog>


    </div>
  );
}