"use client"

import { useEffect, useState } from "react"
import { Button } from "@/components/ui/button"
import {
  Dialog,
  DialogContent,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog"
import { Input } from "@/components/ui/input"
import { Label } from "@/components/ui/label"
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select"
import {
  DOCS_DEFAULT_LINE_HEIGHT,
  DOCS_LINE_HEIGHT_PRESETS,
} from "@/lib/drive/docs-line-spacing"
import type { DocsParagraphSpacingAttrs } from "@/lib/drive/docs-line-spacing"
import {
  DRIVE_BTN_GHOST,
  DRIVE_BTN_PRIMARY,
  DRIVE_DIALOG_BODY,
  DRIVE_DIALOG_CONTENT,
  DRIVE_DIALOG_FOOTER,
  DRIVE_DIALOG_HEADER,
  DRIVE_FIELD_CLASS,
  DRIVE_LABEL_CLASS,
  DRIVE_TEXT_TITLE,
} from "@/lib/drive/drive-dialog-styles"
import { cn } from "@/lib/utils"

export function DocsLineSpacingDialog({
  open,
  onOpenChange,
  initial,
  onApply,
}: {
  open: boolean
  onOpenChange: (open: boolean) => void
  initial: DocsParagraphSpacingAttrs
  onApply: (input: Pick<DocsParagraphSpacingAttrs, "lineHeight" | "spaceBeforePt" | "spaceAfterPt">) => void
}) {
  const [lineHeightPreset, setLineHeightPreset] = useState<string>("1.15")
  const [customLineHeight, setCustomLineHeight] = useState(String(DOCS_DEFAULT_LINE_HEIGHT))
  const [spaceBefore, setSpaceBefore] = useState("0")
  const [spaceAfter, setSpaceAfter] = useState("0")

  useEffect(() => {
    if (!open) return
    const height = initial.lineHeight ?? DOCS_DEFAULT_LINE_HEIGHT
    const preset = DOCS_LINE_HEIGHT_PRESETS.find((item) => Math.abs(item.value - height) < 0.001)
    setLineHeightPreset(preset?.id ?? "custom")
    setCustomLineHeight(String(height))
    setSpaceBefore(String(initial.spaceBeforePt))
    setSpaceAfter(String(initial.spaceAfterPt))
  }, [initial, open])

  const resolvedLineHeight = (): number | null => {
    if (lineHeightPreset === "custom") {
      const value = Number.parseFloat(customLineHeight)
      return Number.isFinite(value) && value > 0 ? value : DOCS_DEFAULT_LINE_HEIGHT
    }
    const preset = DOCS_LINE_HEIGHT_PRESETS.find((item) => item.id === lineHeightPreset)
    return preset?.value ?? DOCS_DEFAULT_LINE_HEIGHT
  }

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className={cn(DRIVE_DIALOG_CONTENT, "max-w-md gap-0 p-0")}>
        <DialogHeader className={DRIVE_DIALOG_HEADER}>
          <DialogTitle className={cn("text-base font-medium", DRIVE_TEXT_TITLE)}>
            Espacement personnalisé
          </DialogTitle>
        </DialogHeader>

        <div className={cn(DRIVE_DIALOG_BODY, "space-y-4")}>
          <div className="space-y-2">
            <Label className={DRIVE_LABEL_CLASS} htmlFor="docs-line-height-preset">
              Interligne
            </Label>
            <Select value={lineHeightPreset} onValueChange={setLineHeightPreset}>
              <SelectTrigger id="docs-line-height-preset" className={DRIVE_FIELD_CLASS}>
                <SelectValue />
              </SelectTrigger>
              <SelectContent>
                {DOCS_LINE_HEIGHT_PRESETS.map((preset) => (
                  <SelectItem key={preset.id} value={preset.id}>
                    {preset.label}
                  </SelectItem>
                ))}
                <SelectItem value="custom">Personnalisé</SelectItem>
              </SelectContent>
            </Select>
            {lineHeightPreset === "custom" ? (
              <Input
                type="number"
                min={0.5}
                max={5}
                step={0.05}
                value={customLineHeight}
                onChange={(event) => setCustomLineHeight(event.target.value)}
                className={DRIVE_FIELD_CLASS}
                aria-label="Interligne personnalisé"
              />
            ) : null}
          </div>

          <div className="grid grid-cols-2 gap-3">
            <div className="space-y-2">
              <Label className={DRIVE_LABEL_CLASS} htmlFor="docs-space-before">
                Avant (pt)
              </Label>
              <Input
                id="docs-space-before"
                type="number"
                min={0}
                max={108}
                step={1}
                value={spaceBefore}
                onChange={(event) => setSpaceBefore(event.target.value)}
                className={DRIVE_FIELD_CLASS}
              />
            </div>
            <div className="space-y-2">
              <Label className={DRIVE_LABEL_CLASS} htmlFor="docs-space-after">
                Après (pt)
              </Label>
              <Input
                id="docs-space-after"
                type="number"
                min={0}
                max={108}
                step={1}
                value={spaceAfter}
                onChange={(event) => setSpaceAfter(event.target.value)}
                className={DRIVE_FIELD_CLASS}
              />
            </div>
          </div>
        </div>

        <DialogFooter className={DRIVE_DIALOG_FOOTER}>
          <Button type="button" variant="ghost" className={DRIVE_BTN_GHOST} onClick={() => onOpenChange(false)}>
            Annuler
          </Button>
          <Button
            type="button"
            className={DRIVE_BTN_PRIMARY}
            onClick={() => {
              onApply({
                lineHeight: resolvedLineHeight(),
                spaceBeforePt: Math.max(0, Number.parseFloat(spaceBefore) || 0),
                spaceAfterPt: Math.max(0, Number.parseFloat(spaceAfter) || 0),
              })
              onOpenChange(false)
            }}
          >
            Appliquer
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  )
}