"use client"

import type { Server } from "@/lib/data"
import { FormField } from "@/components/form-kit"
import { StatusBadge } from "@/components/status-badge"
import { Button } from "@/components/ui/button"
import { Checkbox } from "@/components/ui/checkbox"
import { Input } from "@/components/ui/input"
import {
  Sheet,
  SheetContent,
  SheetHeader,
  SheetTitle,
  SheetDescription,
  SheetFooter,
  SheetClose,
} from "@/components/ui/sheet"
import {
  Stepper,
  StepperContent,
  StepperIndicator,
  StepperItem,
  StepperNav,
  StepperPanel,
  StepperSeparator,
  StepperTitle,
  StepperTrigger,
} from "@/components/reui/stepper"
import { Alert, AlertDescription, AlertTitle } from "@/components/reui/alert"
import { cn } from "@/lib/utils"

export function BackupCreateSheet({
  open,
  onOpenChange,
  step,
  onStepChange,
  servers,
  selected,
  onToggle,
  onSelectAll,
  onClear,
  notes,
  onNotesChange,
  destinationLabel,
  busy,
  onSubmit,
  locked = false,
  terminal = false,
  canObserve = true,
  jobId,
  jobStatus,
  result,
  error,
  onReset,
}: {
  open: boolean
  onOpenChange: (open: boolean) => void
  step: number
  onStepChange: (step: number) => void
  servers: Server[]
  selected: Set<string>
  onToggle: (id: string) => void
  onSelectAll: () => void
  onClear: () => void
  notes: string
  onNotesChange: (value: string) => void
  destinationLabel: string
  busy: boolean
  locked?: boolean
  terminal?: boolean
  canObserve?: boolean
  jobId?: string
  jobStatus?: string
  result?: string
  error?: string | null
  onReset: () => void
  onSubmit: () => void
}) {
  return (
    <Sheet open={open} onOpenChange={(v) => { onOpenChange(v); if (!v) onStepChange(1) }}>
      <SheetContent side="right" className="data-[side=right]:w-full data-[side=right]:sm:max-w-md min-w-0 flex flex-col gap-0 p-0">
        <SheetHeader className="px-6 pt-6 pb-4 border-b shrink-0">
          <SheetTitle>{locked ? "Задача резервного копирования" : "Новый бэкап"}</SheetTitle>
          <SheetDescription>{locked ? "Подтверждённые файлы и ошибки выполнения" : "Снять конфигурацию вручную с выбранных серверов"}</SheetDescription>
        </SheetHeader>

        <div className="min-h-0 flex-1 overflow-y-auto">
        {locked && <div role="status" className="px-6 py-3 text-sm [overflow-wrap:anywhere]"><p>ID: {jobId}</p><p>{jobStatus}</p>{result && <p>{result}</p>}<p className="text-xs text-muted-foreground">Закрытие формы не отменяет задачу. Повторная проверка не создаёт новые копии.</p></div>}
        {error && <div className="px-6 pb-3"><Alert variant="warning" aria-label="Результат задачи"><AlertTitle>{terminal ? "Результат с ограничениями" : "Запрос не подтверждён"}</AlertTitle><AlertDescription className="[overflow-wrap:anywhere]">{error}</AlertDescription></Alert></div>}
        <fieldset disabled={busy || locked} className="flex-1 min-h-0 flex flex-col">
        <Stepper value={step} onValueChange={onStepChange} className="flex-1 flex flex-col min-h-0 px-6 py-5">
          <StepperNav className="mb-5">
            <StepperItem step={1}>
              <StepperTrigger>
                <StepperIndicator>1</StepperIndicator>
                <StepperTitle className="sr-only">Серверы</StepperTitle>
              </StepperTrigger>
              <StepperSeparator />
            </StepperItem>
            <StepperItem step={2}>
              <StepperTrigger>
                <StepperIndicator>2</StepperIndicator>
                <StepperTitle className="sr-only">Заметка</StepperTitle>
              </StepperTrigger>
              <StepperSeparator />
            </StepperItem>
            <StepperItem step={3}>
              <StepperTrigger>
                <StepperIndicator>3</StepperIndicator>
                <StepperTitle className="sr-only">Подтверждение</StepperTitle>
              </StepperTrigger>
            </StepperItem>
          </StepperNav>
          <StepperPanel className="flex-1 overflow-y-auto">
            <StepperContent value={1} className="flex flex-col gap-3">
              <div className="flex items-center justify-between mb-1">
                <p className="text-sm font-medium">Выберите серверы</p>
                <div className="flex items-center gap-2">
                  <button type="button" onClick={onSelectAll} className="text-xs text-primary hover:underline">
                    Все
                  </button>
                  <span className="text-border">·</span>
                  <button
                    type="button"
                    onClick={onClear}
                    className="text-xs text-muted-foreground hover:text-foreground hover:underline"
                  >
                    Сбросить
                  </button>
                </div>
              </div>
              {servers.map((s) => {
                const checked = selected.has(s.id)
                return (
                  <label
                    key={s.id}
                    className={cn(
                      "flex cursor-pointer items-center gap-3 rounded-lg border p-3 text-left transition-colors",
                      checked ? "border-primary/40 bg-primary/5" : "border-border hover:bg-muted/40",
                    )}
                  >
                    <Checkbox
                      checked={checked}
                      onCheckedChange={() => onToggle(s.id)}
                      aria-label={`Выбрать ${s.name}`}
                    />
                    <div className="flex-1 min-w-0">
                      <p className="text-sm font-medium">{s.name}</p>
                      <div className="flex items-center gap-1.5 mt-0.5">
                        <span className="text-xs font-mono text-muted-foreground">{s.host}</span>
                        <StatusBadge status={s.status} />
                      </div>
                    </div>
                    {s.status === "offline" && (
                      <span className="text-xs text-muted-foreground">недоступен</span>
                    )}
                  </label>
                )
              })}
            </StepperContent>
            <StepperContent value={2} className="flex flex-col gap-4">
              <FormField label="Заметка">
                <Input
                  placeholder="Например: перед обновлением BGP"
                  aria-label="Заметка резервной копии"
                  maxLength={500}
                  value={notes}
                  onChange={(e) => onNotesChange(e.target.value)}
                />
              </FormField>
            </StepperContent>
            <StepperContent value={3} className="flex flex-col gap-3 text-sm">
              <p className="text-muted-foreground">
                {locked ? "Запрошены резервные копии для" : "Будет создан бэкап для"} <strong className="text-foreground">{selected.size}</strong> серверов.
              </p>
              {!locked && <p className="text-muted-foreground">
                Куда сохранится: <strong className="text-foreground">{destinationLabel}</strong>
              </p>}
              {notes ? <p className="text-muted-foreground">Заметка: {notes}</p> : null}
            </StepperContent>
          </StepperPanel>
        </Stepper>
        </fieldset>
        </div>

        <SheetFooter className="px-6 py-4 border-t shrink-0 flex-row flex-wrap gap-2">
          <SheetClose render={<Button variant="outline" className="flex-1" />}>Закрыть</SheetClose>
          {!locked && step > 1 && (
            <Button type="button" variant="outline" className="flex-1" onClick={() => onStepChange(step - 1)}>
              Назад
            </Button>
          )}
          {locked ? <><Button type="button" disabled={!canObserve || busy || terminal} onClick={onSubmit}>Проверить задачу</Button>{terminal && <Button type="button" onClick={onReset}>Новая задача</Button>}</> : step < 3 ? (
            <Button
              type="button"
              className="flex-1"
              disabled={step === 1 && selected.size === 0}
              onClick={() => onStepChange(step + 1)}
            >
              Далее
            </Button>
          ) : (
            <Button
              type="button"
              className="flex-1"
              disabled={selected.size === 0 || busy}
              onClick={onSubmit}
            >
              Снять бэкап ({selected.size})
            </Button>
          )}
        </SheetFooter>
      </SheetContent>
    </Sheet>
  )
}