"use client";

import { GripVertical, Pencil, Plus, Trash2 } from "lucide-react";
import { useState } from "react";
import { addPollQuestion, deletePollQuestion, updatePollQuestion } from "@/actions/polls";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
import { useServerAction } from "@/hooks/use-server-action";

interface Question {
  id: number;
  question: string;
  type: string;
  sortOrder: number;
  options: string;
}

interface Props {
  pollId: number;
  questions: Question[];
}

export function PollQuestionsManager({ pollId, questions }: Props) {
  const { run, isPending } = useServerAction();
  const [showForm, setShowForm] = useState(false);
  const [editingId, setEditingId] = useState<number | null>(null);
  const [form, setForm] = useState({
    question: "",
    type: "single",
    sortOrder: questions.length,
    options: "",
  });

  function resetForm() {
    setForm({ question: "", type: "single", sortOrder: questions.length, options: "" });
    setEditingId(null);
    setShowForm(false);
  }

  function handleEdit(q: Question) {
    setForm({ question: q.question, type: q.type, sortOrder: q.sortOrder, options: q.options });
    setEditingId(q.id);
    setShowForm(true);
  }

  function handleSubmit(e: React.FormEvent) {
    e.preventDefault();
    if (editingId) {
      // biome-ignore lint/suspicious/noExplicitAny: explicitly chosen here, see surrounding code
      run(() => updatePollQuestion({ id: editingId, ...form } as any), {
        successMessage: "Question updated!",
      });
    } else {
      // biome-ignore lint/suspicious/noExplicitAny: explicitly chosen here, see surrounding code
      run(() => addPollQuestion({ pollId, ...form } as any), {
        successMessage: "Question added!",
      });
    }
    resetForm();
  }

  return (
    <Card>
      <CardHeader className="flex flex-row items-center justify-between">
        <CardTitle>Questions ({questions.length})</CardTitle>
        <Button
          size="sm"
          onClick={() => {
            resetForm();
            setShowForm(!showForm);
          }}
        >
          <Plus className="h-4 w-4 mr-1" /> Add Question
        </Button>
      </CardHeader>
      <CardContent className="space-y-4">
        {showForm && (
          <form onSubmit={handleSubmit} className="border rounded-lg p-4 space-y-3">
            <div className="space-y-1">
              <Label>Question</Label>
              <Input
                value={form.question}
                onChange={(e) => setForm({ ...form, question: e.target.value })}
                required
              />
            </div>
            <div className="grid grid-cols-2 gap-3">
              <div className="space-y-1">
                <Label>Type</Label>
                <Select value={form.type} onValueChange={(v) => setForm({ ...form, type: v })}>
                  <SelectTrigger>
                    <SelectValue />
                  </SelectTrigger>
                  <SelectContent>
                    <SelectItem value="single">Single Choice</SelectItem>
                    <SelectItem value="multiple">Multiple Choice</SelectItem>
                    <SelectItem value="text">Free Text</SelectItem>
                  </SelectContent>
                </Select>
              </div>
              <div className="space-y-1">
                <Label>Sort Order</Label>
                <Input
                  type="number"
                  value={form.sortOrder}
                  onChange={(e) => setForm({ ...form, sortOrder: Number(e.target.value) })}
                />
              </div>
            </div>
            <div className="space-y-1">
              <Label>Options (one per line)</Label>
              <textarea
                className="w-full rounded-md border bg-transparent px-3 py-2 text-sm min-h-[80px]"
                value={form.options}
                onChange={(e) => setForm({ ...form, options: e.target.value })}
                placeholder={"Option A\nOption B\nOption C"}
              />
            </div>
            <div className="flex gap-2 justify-end">
              <Button type="button" variant="outline" size="sm" onClick={resetForm}>
                Cancel
              </Button>
              <Button type="submit" size="sm" disabled={isPending}>
                {editingId ? "Update" : "Add"}
              </Button>
            </div>
          </form>
        )}

        {questions.length === 0 && !showForm && (
          <p className="text-sm text-muted-foreground text-center py-4">
            No questions yet. Add your first question above.
          </p>
        )}

        <div className="space-y-2">
          {questions.map((q, i) => (
            <div key={q.id} className="flex items-start gap-3 border rounded-lg px-4 py-3">
              <GripVertical className="h-4 w-4 text-muted-foreground mt-0.5 shrink-0" />
              <div className="flex-1 min-w-0">
                <div className="flex items-center gap-2 mb-1">
                  <span className="text-xs text-muted-foreground">Q{i + 1}</span>
                  <span className="text-xs bg-muted px-1.5 py-0.5 rounded">{q.type}</span>
                </div>
                <p className="text-sm font-medium">{q.question}</p>
                {q.options && (
                  <div className="mt-1 text-xs text-muted-foreground">
                    {q.options
                      .split("\n")
                      .filter(Boolean)
                      .map((opt) => (
                        <span key={opt} className="inline-block mr-2 bg-muted px-1.5 py-0.5 rounded mb-1">
                          {opt}
                        </span>
                      ))}
                  </div>
                )}
              </div>
              <div className="flex gap-1 shrink-0">
                <Button variant="ghost" size="icon" className="h-7 w-7" onClick={() => handleEdit(q)}>
                  <Pencil className="h-3.5 w-3.5" />
                </Button>
                <Button
                  variant="ghost"
                  size="icon"
                  className="h-7 w-7"
                  onClick={() =>
                    run(() => deletePollQuestion({ id: q.id }), {
                      successMessage: "Question deleted",
                    })
                  }
                >
                  <Trash2 className="h-3.5 w-3.5 text-destructive" />
                </Button>
              </div>
            </div>
          ))}
        </div>
      </CardContent>
    </Card>
  );
}