"use client"

import React from "react"
import { Plus, Trash2 } from "lucide-react"

export interface Testimonial {
  name: string
  treatment: string
  videoLink: string
 
}

export interface TestimonialsSectionData {
  title: string
  subtitle: string
  testimonials: Testimonial[]
  buttonText: string
  buttonLink: string
}

interface Props {
  value: TestimonialsSectionData
  onChange: (value: TestimonialsSectionData) => void
  showValidation?: boolean
}

function fieldClass(invalid = false) {
  return `w-full bg-card border rounded-xl px-3 py-2.5 text-sm text-foreground font-sans placeholder:text-muted-foreground outline-none transition-colors focus:ring-2 ${
    invalid
      ? "border-red-400 focus:ring-red-200/70 focus:border-red-500"
      : "border-border focus:ring-[#2BB673]/30 focus:border-[#2BB673]"
  }`
}

function Label({ children }: { children: React.ReactNode }) {
  return (
    <label className="text-xs font-bold text-foreground font-sans uppercase tracking-wider">
      {children}
    </label>
  )
}

export function TestimonialsSection({ value, onChange, showValidation = false }: Props) {
  function set<K extends keyof TestimonialsSectionData>(key: K, val: TestimonialsSectionData[K]) {
    onChange({ ...value, [key]: val })
  }

  function addTestimonial() {
    set("testimonials", [...value.testimonials, { name: "", treatment: "", videoLink: "", }])
  }

  function removeTestimonial(i: number) {
    set("testimonials", value.testimonials.filter((_, idx) => idx !== i))
  }

  function updateTestimonial(i: number, field: keyof Testimonial, val: string) {
    set("testimonials", value.testimonials.map((t, idx) => (idx === i ? { ...t, [field]: val } : t)))
  }

  return (
    <div className="flex flex-col gap-5">
      <div className="grid grid-cols-2 gap-4">
        <div className="flex flex-col gap-1.5">
          <Label>Title</Label>
          <input type="text" value={value.title} onChange={(e) => set("title", e.target.value)} placeholder="e.g. Patient Stories" className={fieldClass(showValidation && !value.title.trim())} />
        </div>
        <div className="flex flex-col gap-1.5">
          <Label>Subtitle</Label>
          <input type="text" value={value.subtitle} onChange={(e) => set("subtitle", e.target.value)} placeholder="e.g. Real results from real patients" className={fieldClass(showValidation && !value.subtitle.trim())} />
        </div>
      </div>

      <div className={`flex flex-col gap-3 rounded-xl ${showValidation && value.testimonials.length === 0 ? "border border-red-300 p-3 bg-red-50/40" : ""}`}>
        <div className="flex items-center justify-between">
          <Label>Testimonials</Label>
          <button
            type="button"
            onClick={addTestimonial}
            className="flex cursor-pointer items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-semibold font-sans transition-all hover:brightness-105 active:scale-[0.98]"
            style={{ background: "rgba(43,182,115,0.10)", color: "var(--brand-green)" }}
          >
            <Plus className="w-3.5 h-3.5" aria-hidden="true" />
            Add Testimonial
          </button>
        </div>

        {value.testimonials.length === 0 ? (
          <div className="flex flex-col items-center justify-center gap-2 py-8 rounded-xl border border-dashed border-border">
            <p className="text-xs text-muted-foreground font-sans">No testimonials yet.</p>
            <button type="button" onClick={addTestimonial} className="text-xs cursor-pointer font-semibold font-sans" style={{ color: "var(--brand-green)" }}>
              Add your first testimonial
            </button>
          </div>
        ) : (
          <div className="flex flex-col gap-3">
            {value.testimonials.map((t, i) => (
              <div key={i} className="flex flex-col gap-3 p-4 rounded-xl border border-border bg-muted/40">
                <div className="flex items-center justify-between">
                  <span className="text-xs font-bold font-sans px-2 py-0.5 rounded-md" style={{ background: "rgba(29,45,104,0.08)", color: "var(--brand-navy)" }}>
                    Testimonial {i + 1}
                  </span>
                  <button type="button" onClick={() => removeTestimonial(i)} className="p-1.5 cursor-pointer rounded-lg text-muted-foreground hover:text-red-500 hover:bg-red-50 transition-colors" aria-label={`Remove testimonial ${i + 1}`}>
                    <Trash2 className="w-3.5 h-3.5" aria-hidden="true" />
                  </button>
                </div>
                <div className="grid grid-cols-2 gap-3">
                  <div className="flex flex-col gap-1.5">
                    <label className="text-xs font-semibold text-muted-foreground font-sans">Name</label>
                    <input type="text" value={t.name} onChange={(e) => updateTestimonial(i, "name", e.target.value)} placeholder="Patient name..." className={fieldClass(showValidation && !t.name.trim())} />
                  </div>
                  <div className="flex flex-col gap-1.5">
                    <label className="text-xs font-semibold text-muted-foreground font-sans">Treatment</label>
                    <input type="text" value={t.treatment} onChange={(e) => updateTestimonial(i, "treatment", e.target.value)} placeholder="e.g. Hair Transplant" className={fieldClass(showValidation && !t.treatment.trim())} />
                  </div>
                </div>
                <div className="flex flex-col gap-1.5">
                  <label className="text-xs font-semibold text-muted-foreground font-sans">Video Link</label>
                  <input type="text" value={t.videoLink} onChange={(e) => updateTestimonial(i, "videoLink", e.target.value)} placeholder="https://youtube.com/..." className={fieldClass(showValidation && !t.videoLink.trim())} />
                </div>
                
              </div>
            ))}
          </div>
        )}
      </div>

      <div className="grid grid-cols-2 gap-4">
        <div className="flex flex-col gap-1.5">
          <Label>Button Text</Label>
          <input type="text" value={value.buttonText} onChange={(e) => set("buttonText", e.target.value)} placeholder="e.g. Watch More Stories" className={fieldClass(showValidation && !value.buttonText.trim())} />
        </div>
        <div className="flex flex-col gap-1.5">
          <Label>Button Link</Label>
          <input type="text" value={value.buttonLink} onChange={(e) => set("buttonLink", e.target.value)} placeholder="e.g. /testimonials" className={fieldClass(showValidation && !value.buttonLink.trim())} />
        </div>
      </div>
    </div>
  )
}