"use client";

import { useState } from "react";
import { FileDown, Loader2, FileSpreadsheet, FileText } from "lucide-react";
import { useExport } from "@/hooks/useExport";
import { toast } from "react-hot-toast";

export function ExportPanel() {
  const { exportSnapshot, exportAuditTrail, isLoading, error } = useExport();

  const handleExportSnapshot = async (format: "csv" | "xlsx") => {
    try {
      await exportSnapshot(format);
      const formatName = format === "csv" ? "CSV" : "Excel";
      toast.success(`Inventory snapshot exported as ${formatName}`);
    } catch (err) {
      // Error handled by hook
    }
  };

  const handleExportAuditTrail = async (format: "csv" | "xlsx") => {
    try {
      await exportAuditTrail(format);
      const formatName = format === "csv" ? "CSV" : "Excel";
      toast.success(`Audit trail exported as ${formatName}`);
    } catch (err) {
      // Error handled by hook
    }
  };

  return (
    <div data-testid="admin-tab-exports" className="p-4 md:p-6 bg-surface border border-slate-800 rounded-3xl space-y-4 md:space-y-6">
      <header className="flex items-center gap-3">
        <div className="p-2 md:p-3 bg-emerald-500/10 rounded-2xl text-emerald-400 border border-emerald-500/20 shadow-inner">
          <FileDown size={24} className="md:w-7 md:h-7" />
        </div>
        <div>
          <h2 className="text-xl md:text-2xl font-normal text-white">Export & Reports</h2>
          <p className="text-[10px] md:text-xs text-muted font-normal tracking-tight mt-0.5">
            Download inventory snapshots and audit trails
          </p>
        </div>
      </header>

      <div className="grid md:grid-cols-2 gap-4">
        {/* Inventory Snapshot Section */}
        <div className="p-4 bg-slate-800/30 border border-slate-800 rounded-2xl space-y-4">
          <div>
            <h3 className="text-sm font-normal text-secondary">Inventory Snapshot</h3>
            <p className="text-xs text-muted mt-0.5">
              Export current inventory state with all item details
            </p>
          </div>
          
          <div className="grid grid-cols-2 gap-2">
            <button
              onClick={() => handleExportSnapshot("csv")}
              disabled={isLoading}
              className="bg-surface border border-slate-800 hover:bg-slate-800/50 text-white font-normal py-2 px-3 rounded-xl transition-all active:scale-[0.98] disabled:opacity-50 disabled:pointer-events-none flex items-center justify-center gap-2 text-xs focus-visible:ring-2 focus-visible:ring-primary focus-visible:outline-none"
              aria-label="Export inventory snapshot as CSV"
            >
              {isLoading ? (
                <Loader2 size={14} className="animate-spin" />
              ) : (
                <FileText size={14} />
              )}
              CSV
            </button>
            <button
              onClick={() => handleExportSnapshot("xlsx")}
              disabled={isLoading}
              className="bg-surface border border-slate-800 hover:bg-slate-800/50 text-white font-normal py-2 px-3 rounded-xl transition-all active:scale-[0.98] disabled:opacity-50 disabled:pointer-events-none flex items-center justify-center gap-2 text-xs focus-visible:ring-2 focus-visible:ring-primary focus-visible:outline-none"
              aria-label="Export inventory snapshot as Excel"
            >
              {isLoading ? (
                <Loader2 size={14} className="animate-spin" />
              ) : (
                <FileSpreadsheet size={14} />
              )}
              Excel
            </button>
          </div>
        </div>

        {/* Audit Trail Section */}
        <div className="p-4 bg-slate-800/30 border border-slate-800 rounded-2xl space-y-4">
          <div>
            <h3 className="text-sm font-normal text-secondary">Audit Trail</h3>
            <p className="text-xs text-muted mt-0.5">
              Complete log of system actions and changes
            </p>
          </div>
          
          <div className="grid grid-cols-2 gap-2">
            <button
              onClick={() => handleExportAuditTrail("csv")}
              disabled={isLoading}
              className="bg-surface border border-slate-800 hover:bg-slate-800/50 text-white font-normal py-2 px-3 rounded-xl transition-all active:scale-[0.98] disabled:opacity-50 disabled:pointer-events-none flex items-center justify-center gap-2 text-xs focus-visible:ring-2 focus-visible:ring-primary focus-visible:outline-none"
              aria-label="Export audit trail as CSV"
            >
              {isLoading ? (
                <Loader2 size={14} className="animate-spin" />
              ) : (
                <FileText size={14} />
              )}
              CSV
            </button>
            <button
              onClick={() => handleExportAuditTrail("xlsx")}
              disabled={isLoading}
              className="bg-surface border border-slate-800 hover:bg-slate-800/50 text-white font-normal py-2 px-3 rounded-xl transition-all active:scale-[0.98] disabled:opacity-50 disabled:pointer-events-none flex items-center justify-center gap-2 text-xs focus-visible:ring-2 focus-visible:ring-primary focus-visible:outline-none"
              aria-label="Export audit trail as Excel"
            >
              {isLoading ? (
                <Loader2 size={14} className="animate-spin" />
              ) : (
                <FileSpreadsheet size={14} />
              )}
              Excel
            </button>
          </div>
        </div>
      </div>

      {error && (
        <div className="p-3 bg-rose-500/10 border border-rose-500/20 rounded-xl text-rose-500 text-xs flex items-center gap-2">
          <span>Error: {error}</span>
        </div>
      )}
    </div>
  );
}