import { Book, Brain, Calendar, Cpu, Code2, Database, Rocket, Unplug, Wrench } from "lucide-react"
import type { LucideIcon } from "lucide-react"
import { drupal } from "@/lib/drupal"
import type { DrupalServiceNode } from "@/lib/types"
import { ScrollRevealCard } from "@/components/scroll-reveal-card"

const drupalBaseUrl = process.env.NEXT_PUBLIC_DRUPAL_BASE_URL ?? ""

const ICON_MAP: Record<string, LucideIcon> = {
  coordination: Calendar,
  data_processing: Cpu,
  deployment: Rocket,
  development: Code2,
  documentation: Book,
  interface_api: Unplug,
  interface_and_api: Unplug,
  maintainance: Wrench,
  maintenance: Wrench,
  modelling: Database,
  ai: Brain,
}

function toIconKey(type: string): string {
  return type.toLowerCase().replace(/\s+/g, "_").replace(/-/g, "_")
}

function getIcon(serviceType: string | undefined): LucideIcon {
  if (!serviceType) return Database
  const key = toIconKey(serviceType)
  return ICON_MAP[key] ?? Database
}

function stripHtml(html: string | undefined): string {
  if (!html) return ""
  return html.replace(/<[^>]*>/g, "").trim()
}

async function getServices(): Promise<
  { label: string; body: string; icon: LucideIcon }[]
> {
  if (!drupalBaseUrl) return []

  try {
    let raw: { data?: DrupalServiceNode[] } | null = null
    try {
      raw = await drupal.getResourceCollection<{
        data: DrupalServiceNode[]
      }>("node--service", {
        params: {
          "filter[status]": "1",
          sort: "created",
        },
        deserialize: false,
        next: { revalidate: 60 },
      })
    } catch (firstError) {
      const msg = (firstError as Error).message ?? ""
      if (msg.includes("Unauthorized")) {
        await new Promise((r) => setTimeout(r, 1000))
        raw = await drupal.getResourceCollection<{
          data: DrupalServiceNode[]
        }>("node--service", {
          params: {
            "filter[status]": "1",
            sort: "created",
          },
          deserialize: false,
          next: { revalidate: 60 },
        })
      } else {
        throw firstError
      }
    }

    const nodes = raw?.data ?? []
    if (!nodes.length) return []

    return nodes.map((node) => {
      const bodyObj = node.body
      const bodyText =
        typeof bodyObj === "string"
          ? stripHtml(bodyObj)
          : stripHtml(bodyObj?.value ?? bodyObj?.processed)

      return {
        body: bodyText,
        icon: getIcon(node.field__service__type),
        label: node.title ?? "",
      }
    })
  } catch (error) {
    if ((error as Error).name !== "AbortError") {
      console.warn(
        "[HomeServices] CMS unreachable:",
        (error as Error).message
      )
    }
    return []
  }
}

export async function HomeServices() {
  const services = await getServices()

  return (
    <section className="home-services py-10" aria-labelledby="services-heading">
      <div className="home-services-header mb-6 text-center">
        <h2
          id="services-heading"
          className="home-services-title mb-3 font-bold tracking-tight text-slate-900"
          style={{ fontSize: "var(--fluid-section-title)" }}
        >
          Services
        </h2>
        <p className="home-services-description mx-auto max-w-3xl text-slate-600" style={{ fontSize: "var(--fluid-hero-desc)" }}>
          Data engineering, development, deployment, and ongoing support for
          your projects.
        </p>
      </div>
      <div className="home-services-grid mx-2 flex flex-col gap-5 sm:mx-4 lg:mx-6">
        {services.map(({ label, body, icon: Icon }) => (
          <ScrollRevealCard key={label}>
            <div
              className="home-services-card mx-auto flex max-w-[1000px] min-h-0 w-full flex-col items-center justify-center gap-3 rounded-xl border border-slate-200 bg-slate-50 px-5 py-5 transition-colors hover:border-emerald-200 hover:bg-emerald-50/50 sm:min-h-[7rem] sm:flex-row sm:gap-10 sm:px-10 sm:py-8"
            >
              <Icon
                className="home-services-card-icon size-8 shrink-0 text-emerald-600 sm:size-10 lg:size-12"
                aria-hidden
              />
              <div className="flex min-w-0 flex-1 flex-col items-center justify-center gap-1.5 text-center sm:gap-2">
                <span className="home-services-card-label text-lg font-semibold text-slate-800 sm:text-xl lg:text-2xl">
                  {label}
                </span>
                {body && (
                  <span className="home-services-card-body text-sm leading-snug text-slate-600 sm:text-base lg:text-lg">
                    {body}
                  </span>
                )}
              </div>
            </div>
          </ScrollRevealCard>
        ))}
      </div>
    </section>
  )
}