"use client";

import { useEffect, useState } from "react";
import { Button } from "@app/components/ui/button";
import { Input } from "@app/components/ui/input";
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue
} from "@app/components/ui/select";
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import { z } from "zod";
import {
    Form,
    FormControl,
    FormDescription,
    FormField,
    FormItem,
    FormLabel,
    FormMessage
} from "@app/components/ui/form";
import {
    Credenza,
    CredenzaBody,
    CredenzaClose,
    CredenzaContent,
    CredenzaDescription,
    CredenzaFooter,
    CredenzaHeader,
    CredenzaTitle
} from "@app/components/Credenza";
import { toast } from "@app/hooks/useToast";
import { useTranslations } from "next-intl";
import { createApiClient, formatAxiosError } from "@app/lib/api";
import { useEnvContext } from "@app/hooks/useEnvContext";
import { ListRolesResponse } from "@server/routers/role";
import { ListUsersResponse } from "@server/routers/user";
import { ListSiteResourceRolesResponse } from "@server/routers/siteResource/listSiteResourceRoles";
import { ListSiteResourceUsersResponse } from "@server/routers/siteResource/listSiteResourceUsers";
import { ListSiteResourceClientsResponse } from "@server/routers/siteResource/listSiteResourceClients";
import { ListClientsResponse } from "@server/routers/client/listClients";
import { Tag, TagInput } from "@app/components/tags/tag-input";
import { AxiosResponse } from "axios";
import { UserType } from "@server/types/UserTypes";

type InternalResourceData = {
    id: number;
    name: string;
    orgId: string;
    siteName: string;
    // mode: "host" | "cidr" | "port";
    mode: "host" | "cidr";
    // protocol: string | null;
    // proxyPort: number | null;
    siteId: number;
    destination: string;
    // destinationPort?: number | null;
    alias?: string | null;
};

type EditInternalResourceDialogProps = {
    open: boolean;
    setOpen: (val: boolean) => void;
    resource: InternalResourceData;
    orgId: string;
    onSuccess?: () => void;
};

export default function EditInternalResourceDialog({
    open,
    setOpen,
    resource,
    orgId,
    onSuccess
}: EditInternalResourceDialogProps) {
    const t = useTranslations();
    const api = createApiClient(useEnvContext());
    const [isSubmitting, setIsSubmitting] = useState(false);

    const formSchema = z.object({
        name: z.string().min(1, t("editInternalResourceDialogNameRequired")).max(255, t("editInternalResourceDialogNameMaxLength")),
        mode: z.enum(["host", "cidr", "port"]),
        // protocol: z.enum(["tcp", "udp"]).nullish(),
        // proxyPort: z.int().positive().min(1, t("editInternalResourceDialogProxyPortMin")).max(65535, t("editInternalResourceDialogProxyPortMax")).nullish(),
        destination: z.string().min(1),
        // destinationPort: z.int().positive().min(1, t("editInternalResourceDialogDestinationPortMin")).max(65535, t("editInternalResourceDialogDestinationPortMax")).nullish(),
        alias: z.string().nullish(),
        roles: z.array(
            z.object({
                id: z.string(),
                text: z.string()
            })
        ).optional(),
        users: z.array(
            z.object({
                id: z.string(),
                text: z.string()
            })
        ).optional(),
        clients: z.array(
            z.object({
                id: z.string(),
                text: z.string()
            })
        ).optional()
    })
    // .refine(
    //     (data) => {
    //         if (data.mode === "port") {
    //             return data.protocol !== undefined && data.protocol !== null;
    //         }
    //         return true;
    //     },
    //     {
    //         message: t("editInternalResourceDialogProtocol") + " is required for port mode",
    //         path: ["protocol"]
    //     }
    // )
    // .refine(
    //     (data) => {
    //         if (data.mode === "port") {
    //             return data.proxyPort !== undefined && data.proxyPort !== null;
    //         }
    //         return true;
    //     },
    //     {
    //         message: t("editInternalResourceDialogSitePort") + " is required for port mode",
    //         path: ["proxyPort"]
    //     }
    // )
    // .refine(
    //     (data) => {
    //         if (data.mode === "port") {
    //             return data.destinationPort !== undefined && data.destinationPort !== null;
    //         }
    //         return true;
    //     },
    //     {
    //         message: t("targetPort") + " is required for port mode",
    //         path: ["destinationPort"]
    //     }
    // );

    type FormData = z.infer<typeof formSchema>;

    const [allRoles, setAllRoles] = useState<{ id: string; text: string }[]>([]);
    const [allUsers, setAllUsers] = useState<{ id: string; text: string }[]>([]);
    const [allClients, setAllClients] = useState<{ id: string; text: string }[]>([]);
    const [activeRolesTagIndex, setActiveRolesTagIndex] = useState<number | null>(null);
    const [activeUsersTagIndex, setActiveUsersTagIndex] = useState<number | null>(null);
    const [activeClientsTagIndex, setActiveClientsTagIndex] = useState<number | null>(null);
    const [loadingRolesUsers, setLoadingRolesUsers] = useState(false);
    const [hasMachineClients, setHasMachineClients] = useState(false);

    const form = useForm<FormData>({
        resolver: zodResolver(formSchema),
        defaultValues: {
            name: resource.name,
            mode: resource.mode || "host",
            // protocol: (resource.protocol as "tcp" | "udp" | null | undefined) ?? undefined,
            // proxyPort: resource.proxyPort ?? undefined,
            destination: resource.destination || "",
            // destinationPort: resource.destinationPort ?? undefined,
            alias: resource.alias ?? null,
            roles: [],
            users: [],
            clients: []
        }
    });

    const mode = form.watch("mode");

    const fetchRolesAndUsers = async () => {
        setLoadingRolesUsers(true);
        try {
            const [
                rolesResponse,
                resourceRolesResponse,
                usersResponse,
                resourceUsersResponse,
                clientsResponse
            ] = await Promise.all([
                api.get<AxiosResponse<ListRolesResponse>>(`/org/${orgId}/roles`),
                api.get<AxiosResponse<ListSiteResourceRolesResponse>>(
                    `/site-resource/${resource.id}/roles`
                ),
                api.get<AxiosResponse<ListUsersResponse>>(`/org/${orgId}/users`),
                api.get<AxiosResponse<ListSiteResourceUsersResponse>>(
                    `/site-resource/${resource.id}/users`
                ),
                api.get<AxiosResponse<ListClientsResponse>>(`/org/${orgId}/clients?filter=machine&limit=1000`)
            ]);

            let resourceClientsResponse: AxiosResponse<AxiosResponse<ListSiteResourceClientsResponse>>;
            try {
                resourceClientsResponse = await api.get<AxiosResponse<ListSiteResourceClientsResponse>>(
                    `/site-resource/${resource.id}/clients`
                );
            } catch {
                resourceClientsResponse = {
                    data: {
                        data: {
                            clients: []
                        }
                    },
                    status: 200,
                    statusText: "OK",
                    headers: {} as any,
                    config: {} as any
                } as any;
            }

            setAllRoles(
                rolesResponse.data.data.roles
                    .map((role) => ({
                        id: role.roleId.toString(),
                        text: role.name
                    }))
                    .filter((role) => role.text !== "Admin")
            );

            form.setValue(
                "roles",
                resourceRolesResponse.data.data.roles
                    .map((i) => ({
                        id: i.roleId.toString(),
                        text: i.name
                    }))
                    .filter((role) => role.text !== "Admin")
            );

            setAllUsers(
                usersResponse.data.data.users.map((user) => ({
                    id: user.id.toString(),
                    text: `${user.email || user.username}${user.type !== UserType.Internal ? ` (${user.idpName})` : ""}`
                }))
            );

            form.setValue(
                "users",
                resourceUsersResponse.data.data.users.map((i) => ({
                    id: i.userId.toString(),
                    text: `${i.email || i.username}${i.type !== UserType.Internal ? ` (${i.idpName})` : ""}`
                }))
            );

            const machineClients = clientsResponse.data.data.clients
                .filter((client) => !client.userId)
                .map((client) => ({
                    id: client.clientId.toString(),
                    text: client.name
                }));

            setAllClients(machineClients);
            
            const existingClients = resourceClientsResponse.data.data.clients.map((c: { clientId: number; name: string }) => ({
                id: c.clientId.toString(),
                text: c.name
            }));

            form.setValue("clients", existingClients);

            // Show clients tag input if there are machine clients OR existing client access
            setHasMachineClients(machineClients.length > 0 || existingClients.length > 0);
        } catch (error) {
            console.error("Error fetching roles, users, and clients:", error);
        } finally {
            setLoadingRolesUsers(false);
        }
    };

    useEffect(() => {
        if (open) {
            form.reset({
                name: resource.name,
                mode: resource.mode || "host",
                // protocol: (resource.protocol as "tcp" | "udp" | null | undefined) ?? undefined,
                // proxyPort: resource.proxyPort ?? undefined,
                destination: resource.destination || "",
                // destinationPort: resource.destinationPort ?? undefined,
                alias: resource.alias ?? null,
                roles: [],
                users: [],
                clients: []
            });
            fetchRolesAndUsers();
        }
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [open, resource]);

    const handleSubmit = async (data: FormData) => {
        setIsSubmitting(true);
        try {
            // Update the site resource
            await api.post(`/org/${orgId}/site/${resource.siteId}/resource/${resource.id}`, {
                name: data.name,
                mode: data.mode,
                // protocol: data.mode === "port" ? data.protocol : null,
                // proxyPort: data.mode === "port" ? data.proxyPort : null,
                // destinationPort: data.mode === "port" ? data.destinationPort : null,
                destination: data.destination,
                alias: data.alias && typeof data.alias === "string" && data.alias.trim() ? data.alias : null,
                roleIds: (data.roles || []).map((r) => parseInt(r.id)),
                userIds: (data.users || []).map((u) => u.id),
                clientIds: (data.clients || []).map((c) => parseInt(c.id))
            });

            // Update roles, users, and clients
            // await Promise.all([
            //     api.post(`/site-resource/${resource.id}/roles`, {
            //         roleIds: (data.roles || []).map((r) => parseInt(r.id))
            //     }),
            //     api.post(`/site-resource/${resource.id}/users`, {
            //         userIds: (data.users || []).map((u) => u.id)
            //     }),
            //     api.post(`/site-resource/${resource.id}/clients`, {
            //         clientIds: (data.clients || []).map((c) => parseInt(c.id))
            //     })
            // ]);

            toast({
                title: t("editInternalResourceDialogSuccess"),
                description: t("editInternalResourceDialogInternalResourceUpdatedSuccessfully"),
                variant: "default"
            });

            onSuccess?.();
            setOpen(false);
        } catch (error) {
            console.error("Error updating internal resource:", error);
            toast({
                title: t("editInternalResourceDialogError"),
                description: formatAxiosError(error, t("editInternalResourceDialogFailedToUpdateInternalResource")),
                variant: "destructive"
            });
        } finally {
            setIsSubmitting(false);
        }
    };

    return (
        <Credenza open={open} onOpenChange={setOpen}>
            <CredenzaContent className="max-w-2xl">
                <CredenzaHeader>
                    <CredenzaTitle>{t("editInternalResourceDialogEditClientResource")}</CredenzaTitle>
                    <CredenzaDescription>
                        {t("editInternalResourceDialogUpdateResourceProperties", { resourceName: resource.name })}
                    </CredenzaDescription>
                </CredenzaHeader>
                <CredenzaBody>
                    <Form {...form}>
                        <form onSubmit={form.handleSubmit(handleSubmit)} className="space-y-6" id="edit-internal-resource-form">
                            {/* Resource Properties Form */}
                            <div>
                                <h3 className="text-lg font-semibold mb-4">{t("editInternalResourceDialogResourceProperties")}</h3>
                                <div className="space-y-4">
                                    <FormField
                                        control={form.control}
                                        name="name"
                                        render={({ field }) => (
                                            <FormItem>
                                                <FormLabel>{t("editInternalResourceDialogName")}</FormLabel>
                                                <FormControl>
                                                    <Input {...field} />
                                                </FormControl>
                                                <FormMessage />
                                            </FormItem>
                                        )}
                                    />

                                    <FormField
                                        control={form.control}
                                        name="mode"
                                        render={({ field }) => (
                                            <FormItem>
                                                <FormLabel>{t("editInternalResourceDialogMode")}</FormLabel>
                                                <Select
                                                    onValueChange={field.onChange}
                                                    value={field.value}
                                                >
                                                    <FormControl>
                                                        <SelectTrigger>
                                                            <SelectValue />
                                                        </SelectTrigger>
                                                    </FormControl>
                                                    <SelectContent>
                                                        {/* <SelectItem value="port">{t("editInternalResourceDialogModePort")}</SelectItem> */}
                                                        <SelectItem value="host">{t("editInternalResourceDialogModeHost")}</SelectItem>
                                                        <SelectItem value="cidr">{t("editInternalResourceDialogModeCidr")}</SelectItem>
                                                    </SelectContent>
                                                </Select>
                                                <FormMessage />
                                            </FormItem>
                                        )}
                                    />

                                    {/* {mode === "port" && (
                                        <div className="grid grid-cols-2 gap-4">
                                            <FormField
                                                control={form.control}
                                                name="protocol"
                                                render={({ field }) => (
                                                    <FormItem>
                                                        <FormLabel>{t("editInternalResourceDialogProtocol")}</FormLabel>
                                                        <Select
                                                            onValueChange={field.onChange}
                                                            value={field.value ?? undefined}
                                                        >
                                                            <FormControl>
                                                                <SelectTrigger>
                                                                    <SelectValue />
                                                                </SelectTrigger>
                                                            </FormControl>
                                                            <SelectContent>
                                                                <SelectItem value="tcp">TCP</SelectItem>
                                                                <SelectItem value="udp">UDP</SelectItem>
                                                            </SelectContent>
                                                        </Select>
                                                        <FormMessage />
                                                    </FormItem>
                                                )}
                                            />

                                            <FormField
                                                control={form.control}
                                                name="proxyPort"
                                                render={({ field }) => (
                                                    <FormItem>
                                                        <FormLabel>{t("editInternalResourceDialogSitePort")}</FormLabel>
                                                        <FormControl>
                                                            <Input
                                                                type="number"
                                                                value={field.value || ""}
                                                                onChange={(e) => field.onChange(e.target.value === "" ? undefined : parseInt(e.target.value) || 0)}
                                                            />
                                                        </FormControl>
                                                        <FormMessage />
                                                    </FormItem>
                                                )}
                                            />
                                        </div>
                                    )} */}
                                </div>
                            </div>

                            {/* Target Configuration Form */}
                            <div>
                                <h3 className="text-lg font-semibold mb-4">{t("editInternalResourceDialogTargetConfiguration")}</h3>
                                <div className="space-y-4">
                                    <FormField
                                        control={form.control}
                                        name="destination"
                                        render={({ field }) => (
                                            <FormItem>
                                                <FormLabel>{t("editInternalResourceDialogDestination")}</FormLabel>
                                                <FormControl>
                                                    <Input {...field} />
                                                </FormControl>
                                                <FormDescription>
                                                    {mode === "host" && t("editInternalResourceDialogDestinationHostDescription")}
                                                    {mode === "cidr" && t("editInternalResourceDialogDestinationCidrDescription")}
                                                    {/* {mode === "port" && t("editInternalResourceDialogDestinationIPDescription")} */}
                                                </FormDescription>
                                                <FormMessage />
                                            </FormItem>
                                        )}
                                    />

                                    {/* {mode === "port" && (
                                        <FormField
                                            control={form.control}
                                            name="destinationPort"
                                            render={({ field }) => (
                                                <FormItem>
                                                    <FormLabel>{t("targetPort")}</FormLabel>
                                                    <FormControl>
                                                        <Input
                                                            type="number"
                                                            value={field.value || ""}
                                                            onChange={(e) => field.onChange(e.target.value === "" ? undefined : parseInt(e.target.value) || 0)}
                                                        />
                                                    </FormControl>
                                                    <FormMessage />
                                                </FormItem>
                                            )}
                                        />
                                    )} */}
                                </div>
                            </div>

                            {/* Alias */}
                            {mode !== "cidr" && (
                                <div>
                                    <FormField
                                        control={form.control}
                                        name="alias"
                                        render={({ field }) => (
                                            <FormItem>
                                                <FormLabel>{t("editInternalResourceDialogAlias")}</FormLabel>
                                                <FormControl>
                                                    <Input {...field} value={field.value ?? ""} />
                                                </FormControl>
                                                <FormDescription>
                                                    {t("editInternalResourceDialogAliasDescription")}
                                                </FormDescription>
                                                <FormMessage />
                                            </FormItem>
                                        )}
                                    />
                                </div>
                            )}

                            {/* Access Control Section */}
                            <div>
                                <h3 className="text-lg font-semibold mb-4">
                                    {t("resourceUsersRoles")}
                                </h3>
                                {loadingRolesUsers ? (
                                    <div className="text-sm text-muted-foreground">
                                        {t("loading")}
                                    </div>
                                ) : (
                                    <div className="space-y-4">
                                        <FormField
                                            control={form.control}
                                            name="roles"
                                            render={({ field }) => (
                                                <FormItem className="flex flex-col items-start">
                                                    <FormLabel>{t("roles")}</FormLabel>
                                                    <FormControl>
                                                        <TagInput
                                                            {...field}
                                                            activeTagIndex={activeRolesTagIndex}
                                                            setActiveTagIndex={setActiveRolesTagIndex}
                                                            placeholder={t("accessRoleSelect2")}
                                                            size="sm"
                                                            tags={form.getValues().roles || []}
                                                            setTags={(newRoles) => {
                                                                form.setValue(
                                                                    "roles",
                                                                    newRoles as [Tag, ...Tag[]]
                                                                );
                                                            }}
                                                            enableAutocomplete={true}
                                                            autocompleteOptions={allRoles}
                                                            allowDuplicates={false}
                                                            restrictTagsToAutocompleteOptions={true}
                                                            sortTags={true}
                                                        />
                                                    </FormControl>
                                                    <FormMessage />
                                                    <FormDescription>
                                                        {t("resourceRoleDescription")}
                                                    </FormDescription>
                                                </FormItem>
                                            )}
                                        />
                                        <FormField
                                            control={form.control}
                                            name="users"
                                            render={({ field }) => (
                                                <FormItem className="flex flex-col items-start">
                                                    <FormLabel>{t("users")}</FormLabel>
                                                    <FormControl>
                                                        <TagInput
                                                            {...field}
                                                            activeTagIndex={activeUsersTagIndex}
                                                            setActiveTagIndex={setActiveUsersTagIndex}
                                                            placeholder={t("accessUserSelect")}
                                                            tags={form.getValues().users || []}
                                                            size="sm"
                                                            setTags={(newUsers) => {
                                                                form.setValue(
                                                                    "users",
                                                                    newUsers as [Tag, ...Tag[]]
                                                                );
                                                            }}
                                                            enableAutocomplete={true}
                                                            autocompleteOptions={allUsers}
                                                            allowDuplicates={false}
                                                            restrictTagsToAutocompleteOptions={true}
                                                            sortTags={true}
                                                        />
                                                    </FormControl>
                                                    <FormMessage />
                                                </FormItem>
                                            )}
                                        />
                                    {hasMachineClients && (
                                        <FormField
                                            control={form.control}
                                            name="clients"
                                            render={({ field }) => (
                                                <FormItem className="flex flex-col items-start">
                                                    <FormLabel>{t("clients")}</FormLabel>
                                                    <FormControl>
                                                        <TagInput
                                                            {...field}
                                                            activeTagIndex={activeClientsTagIndex}
                                                            setActiveTagIndex={setActiveClientsTagIndex}
                                                            placeholder={t("accessClientSelect") || "Select machine clients"}
                                                            size="sm"
                                                            tags={form.getValues().clients || []}
                                                            setTags={(newClients) => {
                                                                form.setValue(
                                                                    "clients",
                                                                    newClients as [Tag, ...Tag[]]
                                                                );
                                                            }}
                                                            enableAutocomplete={true}
                                                            autocompleteOptions={allClients}
                                                            allowDuplicates={false}
                                                            restrictTagsToAutocompleteOptions={true}
                                                            sortTags={true}
                                                        />
                                                    </FormControl>
                                                    <FormMessage />
                                                    <FormDescription>
                                                        {t("resourceClientDescription") || "Machine clients that can access this resource"}
                                                    </FormDescription>
                                                </FormItem>
                                            )}
                                        />
                                    )}
                                    </div>
                                )}
                            </div>
                        </form>
                    </Form>
                </CredenzaBody>
                <CredenzaFooter>
                    <Button
                        variant="outline"
                        onClick={() => setOpen(false)}
                        disabled={isSubmitting}
                    >
                        {t("editInternalResourceDialogCancel")}
                    </Button>
                    <Button
                        type="submit"
                        form="edit-internal-resource-form"
                        disabled={isSubmitting}
                        loading={isSubmitting}
                    >
                         {t("editInternalResourceDialogSaveResource")}
                    </Button>
                </CredenzaFooter>
            </CredenzaContent>
        </Credenza>
    );
}