"use client"

import { useState, useCallback, useEffect } from "react"
import { Button } from "@/components/ui/button"
import { jobsApi, transformApiJobToFrontend } from "@/lib/api"
import { Job } from "@/lib/types"
import Link from "next/link"
import { ArrowRight, CheckCircle2, ChevronLeft, ChevronRight } from "lucide-react"
import Image from "next/image"
import { motion } from "framer-motion"
import { useTranslation } from "@/lib/i18n"
import { Navbar } from "@/components/navbar"
import { Footer } from "@/components/footer"
import { HomeSearch } from "@/components/home-search"
import { JobCard } from "@/components/job-card"
import useEmblaCarousel from "embla-carousel-react"

export default function Home() {
    const { t } = useTranslation()
    const [jobs, setJobs] = useState<Job[]>([])
    const [loading, setLoading] = useState(true)

    const [emblaRef, emblaApi] = useEmblaCarousel({
        align: "start",
        loop: false,
        skipSnaps: false,
        dragFree: true
    })

    const [moreJobsEmblaRef, moreJobsEmblaApi] = useEmblaCarousel({
        align: "start",
        loop: false,
        skipSnaps: false,
        dragFree: true
    })

    const [prevBtnDisabled, setPrevBtnDisabled] = useState(true)
    const [nextBtnDisabled, setNextBtnDisabled] = useState(true)
    const [moreJobsPrevBtnDisabled, setMoreJobsPrevBtnDisabled] = useState(true)
    const [moreJobsNextBtnDisabled, setMoreJobsNextBtnDisabled] = useState(true)

    useEffect(() => {
        async function fetchJobs() {
            try {
                const res = await jobsApi.list({ limit: 8 })
                if (res.data) {
                    setJobs(res.data.map(transformApiJobToFrontend))
                }
            } catch (error) {
                console.error("Failed to fetch jobs:", error)
            } finally {
                setLoading(false)
            }
        }
        fetchJobs()
    }, [])

    const scrollPrev = useCallback(() => {
        if (emblaApi) emblaApi.scrollPrev()
    }, [emblaApi])

    const scrollNext = useCallback(() => {
        if (emblaApi) emblaApi.scrollNext()
    }, [emblaApi])

    const scrollMoreJobsPrev = useCallback(() => {
        if (moreJobsEmblaApi) moreJobsEmblaApi.scrollPrev()
    }, [moreJobsEmblaApi])

    const scrollMoreJobsNext = useCallback(() => {
        if (moreJobsEmblaApi) moreJobsEmblaApi.scrollNext()
    }, [moreJobsEmblaApi])

    const onSelect = useCallback((emblaApi: any) => {
        setPrevBtnDisabled(!emblaApi.canScrollPrev())
        setNextBtnDisabled(!emblaApi.canScrollNext())
    }, [])

    const onMoreJobsSelect = useCallback((emblaApi: any) => {
        setMoreJobsPrevBtnDisabled(!emblaApi.canScrollPrev())
        setMoreJobsNextBtnDisabled(!emblaApi.canScrollNext())
    }, [])

    useEffect(() => {
        if (!emblaApi) return
        onSelect(emblaApi)
        emblaApi.on("reInit", onSelect)
        emblaApi.on("select", onSelect)
    }, [emblaApi, onSelect])

    useEffect(() => {
        if (!moreJobsEmblaApi) return
        onMoreJobsSelect(moreJobsEmblaApi)
        moreJobsEmblaApi.on("reInit", onMoreJobsSelect)
        moreJobsEmblaApi.on("select", onMoreJobsSelect)
    }, [moreJobsEmblaApi, onMoreJobsSelect])

    return (
        <div className="min-h-screen bg-gray-50 flex flex-col font-sans">
            <Navbar />

            <main className="flex-grow">
                {/* Hero Section */}
                <section className="relative h-[520px] flex items-center justify-center bg-[#1F2F40]">
                    <div className="absolute inset-0 z-0">
                        <Image
                            src="/10.png"
                            alt="Background"
                            fill
                            className="object-cover opacity-55 contrast-125"
                            priority
                        />
                        <div className="absolute inset-0 bg-gradient-to-r from-[#132131]/95 via-[#1F2F40]/90 to-[#1F2F40]/45" />
                    </div>

                    <div className="container mx-auto px-4 sm:px-6 relative z-10 text-center sm:text-left">
                        <div className="max-w-3xl">
                            <motion.h1
                                initial={{ opacity: 0, y: 20 }}
                                animate={{ opacity: 1, y: 0 }}
                                transition={{ duration: 0.5 }}
                                className="text-4xl md:text-5xl lg:text-6xl font-bold text-white mb-6 leading-tight tracking-tight"
                            >
                                {t("home.hero.title")} <br className="hidden sm:block" />
                                {t("home.hero.titleLine2")}
                            </motion.h1>

                            <motion.p
                                initial={{ opacity: 0, y: 20 }}
                                animate={{ opacity: 1, y: 0 }}
                                transition={{ duration: 0.5, delay: 0.1 }}
                                className="text-lg md:text-xl text-gray-300 mb-8 max-w-xl leading-relaxed"
                            >
                                {t("home.hero.subtitle")}
                            </motion.p>

                            <motion.div
                                initial={{ opacity: 0, y: 20 }}
                                animate={{ opacity: 1, y: 0 }}
                                transition={{ duration: 0.5, delay: 0.2 }}
                            >
                                <Link href="/jobs">
                                    <Button className="h-12 px-8 bg-orange-500 hover:bg-orange-600 text-white font-bold text-lg rounded-lg shadow-lg transition-transform hover:scale-105">
                                        {t("home.hero.cta")}
                                    </Button>
                                </Link>
                            </motion.div>
                        </div>
                    </div>
                </section>

                {/* Search Section */}
                <section className="px-4 sm:px-6 mb-16">
                    <div className="container mx-auto">
                        <HomeSearch />
                    </div>
                </section>

                {/* Latest Jobs Section */}
                <section className="py-12 bg-gray-50">
                    <div className="container mx-auto px-4 sm:px-6">
                        <div className="flex items-center justify-between mb-8">
                            <h2 className="text-2xl md:text-3xl font-bold text-gray-900">
                                {t("home.featuredJobs.title")}
                            </h2>
                            <div className="flex items-center gap-2">
                                <Button
                                    variant="outline"
                                    size="icon"
                                    className="rounded-full border-gray-300 hover:border-orange-500 hover:text-orange-500 transition-all w-10 h-10"
                                    onClick={scrollPrev}
                                    disabled={prevBtnDisabled}
                                >
                                    <ChevronLeft className="w-5 h-5" />
                                </Button>
                                <Button
                                    variant="outline"
                                    size="icon"
                                    className="rounded-full border-gray-300 hover:border-orange-500 hover:text-orange-500 transition-all w-10 h-10"
                                    onClick={scrollNext}
                                    disabled={nextBtnDisabled}
                                >
                                    <ChevronRight className="w-5 h-5" />
                                </Button>
                            </div>
                        </div>

                        <div className="overflow-hidden" ref={emblaRef}>
                            <div className="flex gap-6">
                                {loading ? (
                                    <div className="flex-[0_0_100%] text-center py-8">Carregando vagas...</div>
                                ) : jobs.slice(0, 8).map((job, index) => (
                                    <div key={`latest-${job.id}-${index}`} className="flex-[0_0_100%] sm:flex-[0_0_50%] lg:flex-[0_0_50%] xl:flex-[0_0_33.333%] 2xl:flex-[0_0_25%] min-w-0 pb-1">
                                        <JobCard job={job} />
                                    </div>
                                ))}
                            </div>
                        </div>
                    </div>
                </section>

                {/* More Jobs Section */}
                <section className="py-12 bg-white">
                    <div className="container mx-auto px-4 sm:px-6">
                        <div className="flex items-center justify-between mb-8">
                            <h2 className="text-2xl md:text-3xl font-bold text-gray-900">
                                {t("home.moreJobs.title")}
                            </h2>
                            <div className="flex items-center gap-3">
                                <Button
                                    variant="outline"
                                    size="icon"
                                    className="rounded-full border-gray-300 hover:border-orange-500 hover:text-orange-500 transition-all w-10 h-10"
                                    onClick={scrollMoreJobsPrev}
                                    disabled={moreJobsPrevBtnDisabled}
                                >
                                    <ChevronLeft className="w-5 h-5" />
                                </Button>
                                <Button
                                    variant="outline"
                                    size="icon"
                                    className="rounded-full border-gray-300 hover:border-orange-500 hover:text-orange-500 transition-all w-10 h-10"
                                    onClick={scrollMoreJobsNext}
                                    disabled={moreJobsNextBtnDisabled}
                                >
                                    <ChevronRight className="w-5 h-5" />
                                </Button>
                                <Link href="/jobs">
                                    <Button className="bg-orange-500 hover:bg-orange-600 text-white font-bold rounded-lg">
                                        {t("home.moreJobs.viewAll")}
                                    </Button>
                                </Link>
                            </div>
                        </div>

                        <div className="overflow-hidden" ref={moreJobsEmblaRef}>
                            <div className="flex gap-6">
                                {loading ? (
                                    <div className="flex-[0_0_100%] text-center py-8">Carregando vagas...</div>
                                ) : jobs.slice(0, 8).map((job, index) => (
                                    <div key={`more-${job.id}-${index}`} className="flex-[0_0_100%] sm:flex-[0_0_50%] lg:flex-[0_0_50%] xl:flex-[0_0_33.333%] 2xl:flex-[0_0_25%] min-w-0 pb-1">
                                        <JobCard job={job} />
                                    </div>
                                ))}
                            </div>
                        </div>
                    </div>
                </section>

                {/* Bottom CTA Section */}
                <section className="py-16 bg-white">
                    <div className="container mx-auto px-4 sm:px-6">
                        <div className="bg-[#1F2F40] rounded-[2rem] p-8 md:p-16 relative overflow-hidden text-center md:text-left flex flex-col md:flex-row items-center justify-between min-h-[400px]">
                            <div className="relative z-10 max-w-xl">
                                <h2 className="text-3xl md:text-4xl font-bold text-white mb-4 leading-tight">
                                    {t("home.cta.title")}
                                </h2>
                                <p className="text-base text-gray-300 mb-8">
                                    {t("home.cta.subtitle")}
                                </p>
                                <Link href="/register/user">
                                    <Button className="h-12 px-8 bg-white text-gray-900 hover:bg-gray-100 font-bold text-lg rounded-lg">
                                        {t("home.cta.button")}
                                    </Button>
                                </Link>
                            </div>

                            <div className="absolute inset-0 z-0">
                                <div className="absolute right-0 top-0 h-full w-full md:w-2/3 lg:w-1/2">
                                    <Image
                                        src="/muie.jpeg"
                                        alt="Professional"
                                        fill
                                        className="object-cover object-center md:object-right opacity-40 md:opacity-100"
                                    />
                                    <div className="absolute inset-0 bg-gradient-to-t md:bg-gradient-to-r from-[#1F2F40] via-[#1F2F40]/30 to-transparent" />
                                </div>
                            </div>
                        </div>
                    </div>
                </section>
            </main>

            <Footer />
        </div>
    )
}