"use client"

import { useEffect, useState } from "react"
import type { DocumentShareType } from "@garage/api"
import { Button } from "@/shared/components/ui/button"
import {
    Dialog,
    DialogContent,
    DialogFooter,
    DialogHeader,
    DialogTitle,
} from "@/shared/components/ui/dialog"
import { Input } from "@/shared/components/ui/input"
import { Label } from "@/shared/components/ui/label"
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/shared/components/ui/tabs"
import { Textarea } from "@/shared/components/ui/textarea"
import { useDocumentShare } from "@/shared/hooks/use-document-share"

interface ShareDocumentDialogProps {
    type: DocumentShareType
    id: string | number
    open: boolean
    onOpenChange: (open: boolean) => void
}

const DEFAULT_MESSAGES: Record<string, { email: string; whatsapp: string }> = {
    estimate: {
        email: "Hello, please find your estimate at the link below. Kindly review the details and let us know if you'd like to proceed.",
        whatsapp: "Hello, here is your estimate. Please review and let us know if you'd like to proceed.",
    },
    invoice: {
        email: "Hello, please find your invoice at the link below. Let us know once payment has been arranged.",
        whatsapp: "Hello, here is your invoice. Let us know once payment is arranged.",
    },
    job_card: {
        email: "Hello, please find the job card for your vehicle at the link below.",
        whatsapp: "Hello, here is the job card for your vehicle.",
    },
    inspection: {
        email: "Hello, please find your vehicle inspection report at the link below.",
        whatsapp: "Hello, here is your vehicle inspection report.",
    },
    payment_received: {
        email: "Hello, please find your payment receipt at the link below. Thank you.",
        whatsapp: "Hello, here is your payment receipt. Thank you.",
    },
    purchase_order: {
        email: "Hello, please find our purchase order at the link below. Kindly confirm receipt.",
        whatsapp: "Hello, here is our purchase order. Kindly confirm receipt.",
    },
    bill: {
        email: "Hello, please find the bill at the link below for your reference.",
        whatsapp: "Hello, here is the bill for your reference.",
    },
    expense: {
        email: "Hello, please find the expense document at the link below.",
        whatsapp: "Hello, here is the expense document.",
    },
    payment_made: {
        email: "Hello, please find the payment confirmation at the link below.",
        whatsapp: "Hello, here is the payment confirmation.",
    },
}

function getDefaultMessage(type: DocumentShareType, channel: "email" | "whatsapp"): string {
    return DEFAULT_MESSAGES[type as string]?.[channel] ?? ""
}

export function ShareDocumentDialog({ type, id, open, onOpenChange }: ShareDocumentDialogProps) {
    const { shareEmail, shareWhatsapp, isSharing } = useDocumentShare(type, id)
    const [email, setEmail] = useState("")
    const [phone, setPhone] = useState("")
    const [emailMessage, setEmailMessage] = useState("")
    const [whatsappMessage, setWhatsappMessage] = useState("")

    useEffect(() => {
        if (open) {
            setEmailMessage(getDefaultMessage(type, "email"))
            setWhatsappMessage(getDefaultMessage(type, "whatsapp"))
        }
    }, [open, type])

    const close = () => {
        onOpenChange(false)
        setEmail("")
        setPhone("")
        setEmailMessage("")
        setWhatsappMessage("")
    }

    const handleEmail = async () => {
        if (!email) return
        await shareEmail({ email, message: emailMessage || undefined })
        close()
    }

    const handleWhatsapp = async () => {
        await shareWhatsapp({ phone: phone || undefined, message: whatsappMessage || undefined })
        close()
    }

    return (
        <Dialog open={open} onOpenChange={onOpenChange}>
            <DialogContent className="sm:max-w-md">
                <DialogHeader>
                    <DialogTitle>Share document</DialogTitle>
                </DialogHeader>
                <Tabs defaultValue="email" className="w-full">
                    <TabsList className="grid w-full grid-cols-2">
                        <TabsTrigger value="email">Email</TabsTrigger>
                        <TabsTrigger value="whatsapp">WhatsApp</TabsTrigger>
                    </TabsList>
                    <TabsContent value="email" className="space-y-3 py-2">
                        <div className="space-y-1.5">
                            <Label htmlFor="share-email">Recipient email</Label>
                            <Input
                                id="share-email"
                                type="email"
                                value={email}
                                onChange={(e) => setEmail(e.target.value)}
                                placeholder="customer@example.com"
                            />
                        </div>
                        <div className="space-y-1.5">
                            <Label htmlFor="share-email-message">Message</Label>
                            <Textarea
                                id="share-email-message"
                                value={emailMessage}
                                onChange={(e) => setEmailMessage(e.target.value)}
                                rows={4}
                            />
                        </div>
                        <DialogFooter className="pt-2">
                            <Button variant="outline" type="button" onClick={close}>
                                Cancel
                            </Button>
                            <Button type="button" onClick={handleEmail} disabled={!email || isSharing}>
                                {isSharing ? "Sending..." : "Send email"}
                            </Button>
                        </DialogFooter>
                    </TabsContent>
                    <TabsContent value="whatsapp" className="space-y-3 py-2">
                        <div className="space-y-1.5">
                            <Label htmlFor="share-phone">Phone with country code (optional)</Label>
                            <Input
                                id="share-phone"
                                type="tel"
                                value={phone}
                                onChange={(e) => setPhone(e.target.value)}
                                placeholder="+971501234567"
                            />
                            <p className="text-xs text-muted-foreground">
                                Leave empty to pick recipient inside WhatsApp.
                            </p>
                        </div>
                        <div className="space-y-1.5">
                            <Label htmlFor="share-wa-message">Message</Label>
                            <Textarea
                                id="share-wa-message"
                                value={whatsappMessage}
                                onChange={(e) => setWhatsappMessage(e.target.value)}
                                rows={4}
                            />
                        </div>
                        <DialogFooter className="pt-2">
                            <Button variant="outline" type="button" onClick={close}>
                                Cancel
                            </Button>
                            <Button type="button" onClick={handleWhatsapp} disabled={isSharing}>
                                {isSharing ? "Opening..." : "Open WhatsApp"}
                            </Button>
                        </DialogFooter>
                    </TabsContent>
                </Tabs>
                <p className="text-xs text-muted-foreground text-center">
                    Share link expires 24 hours after creation.
                </p>
            </DialogContent>
        </Dialog>
    )
}