import { Plus, Trash2 } from "lucide-react";
import type { Analysis } from "@/services/orchestrationApi";
import { EmptyState, LoadingState } from "./AnalysisStates";
import { cx, formatDateTime } from "./utils";

interface AnalysisSidebarProps {
  analyses: Analysis[];
  activeId?: string;
  loading: boolean;
  onNew: () => void;
  onSelect: (analysis: Analysis) => void;
  onDelete: (analysis: Analysis) => void;
}

export function AnalysisSidebar({ analyses, activeId, loading, onNew, onSelect, onDelete }: AnalysisSidebarProps) {
  return (
    <aside className="flex h-full w-full flex-col border-r border-slate-200 bg-white lg:w-72">
      <div className="border-b border-slate-200 p-4">
        <button
          type="button"
          aria-label="Create new analysis"
          onClick={onNew}
          className="flex w-full items-center justify-center gap-2 rounded-md bg-emerald-600 px-3 py-2 text-sm font-medium text-white hover:bg-emerald-700"
        >
          <Plus className="h-4 w-4" />
          New Analysis
        </button>
      </div>

      <div className="min-h-0 flex-1 overflow-y-auto p-3">
        {loading ? (
          <LoadingState label="Loading analyses" />
        ) : analyses.length === 0 ? (
          <EmptyState title="No analyses yet" description="Create one after your knowledge sources are ready." />
        ) : (
          <div className="space-y-2">
            {analyses.map((analysis) => (
              <button
                key={analysis.id}
                type="button"
                onClick={() => onSelect(analysis)}
                className={cx(
                  "group flex w-full flex-col rounded-lg border p-3 text-left transition",
                  activeId === analysis.id ? "border-emerald-200 bg-emerald-50" : "border-slate-200 bg-white hover:bg-slate-50"
                )}
              >
                <span className="flex items-start justify-between gap-2">
                  <span className="min-w-0 flex-1 truncate text-sm font-medium text-slate-900">{analysis.analysis_title}</span>
                  <span
                    role="button"
                    tabIndex={0}
                    aria-label="Delete analysis"
                    onClick={(event) => {
                      event.stopPropagation();
                      onDelete(analysis);
                    }}
                    className="rounded p-1 text-slate-400 opacity-0 hover:bg-red-50 hover:text-red-600 group-hover:opacity-100"
                  >
                    <Trash2 className="h-3.5 w-3.5" />
                  </span>
                </span>
                <span className="mt-1 line-clamp-2 text-xs leading-5 text-slate-500">{analysis.objective}</span>
                <span className="mt-2 text-[11px] text-slate-400">{formatDateTime(analysis.updated_at || analysis.created_at)}</span>
              </button>
            ))}
          </div>
        )}
      </div>
    </aside>
  );
}