import { useSession } from "next-auth/react"
import Layout from "../components/layout"
import AvCalendar from '../components/calendar/avcalendar';
import { getSession } from "next-auth/react";
import common from '../src/helpers/common';
import { Availability } from "@prisma/client";
import ProtectedRoute, { serverSideAuth } from "../components/protectedRoute";
import { UserRole } from "@prisma/client";
import React, { useState, useEffect } from 'react';
import axiosInstance from '../src/axiosSecure';

import { authOptions } from './api/auth/[...nextauth]'
import { getServerSession } from "next-auth/next"

import PublisherSearchBox from '../components/publisher/PublisherSearchBox';
import PublisherInlineForm from '../components/publisher/PublisherInlineForm';


interface IProps {
    initialItems: Availability[];
    initialUserId: string;
}
export default function IndexPage({ initialItems, initialUserId }: IProps) {
    const { data: session } = useSession();
    const [userName, setUserName] = useState(session?.user?.name);
    const [userId, setUserId] = useState(initialUserId);
    const [events, setEvents] = useState(initialItems?.map(item => ({
        ...item,
        title: item.name,
        date: new Date(item.startTime),
        startTime: new Date(item.startTime),
        endTime: new Date(item.endTime),
        publisherId: item.publisherId,
    })));

    useEffect(() => {
        if (session) {
            setUserName(session.user.name);
            setUserId(session.user.id);
            //handleUserSelection({ id: session.user.id, firstName: session.user.name, lastName: '' });
        }
    }, [session]);

    const handleUserSelection = async (publisher) => {
        if (!publisher || publisher.id === undefined) return;
        console.log("selecting publisher", publisher.id);
        setUserName(publisher.firstName + " " + publisher.lastName);
        setUserId(publisher.id);

        try {
            let events = await axiosInstance.get(`/api/?action=getCalendarEvents&publisherId=${publisher.id}`);
            setEvents(events.data);
        } catch (error) {
            console.error("Error fetching publisher info:", error);
            // Handle the error appropriately
        }
    };

    return (
        <Layout>
            <ProtectedRoute deniedMessage="">
                <h1 className="pt-2 pb-1 text-xl font-bold text-center">Графика на {userName}</h1>
                <ProtectedRoute allowedRoles={[UserRole.ADMIN]} deniedMessage="">
                    <PublisherSearchBox selectedId={userId} infoText="" onChange={handleUserSelection} />
                </ProtectedRoute>
                <div className="flex flex-row md:flex-row mt-4 space-y-4 md:space-y-0 md:space-x-4 h-[calc(100vh-10rem)]">
                    <div className="flex-1">
                        <div className="text-center font-bold pb-3">
                            <PublisherInlineForm publisherId={userId} />
                        </div>
                        <AvCalendar publisherId={userId} events={events} selectedDate={new Date()} />
                    </div>
                </div>
            </ProtectedRoute>
        </Layout>
    );
}


async function getAvailabilities(userId) {
    const prismaClient = common.getPrismaClient();
    const items = await prismaClient.availability.findMany({
        where: {
            publisherId: userId,
        },
        select: {
            id: true,
            name: true,
            isActive: true,
            isFromPreviousAssignment: true,
            isFromPreviousMonth: true,
            dayofweek: true,
            dayOfMonth: true,
            startTime: true,
            endTime: true,
            repeatWeekly: true,
            endDate: true,
            publisher: {
                select: {
                    firstName: true,
                    lastName: true,
                    id: true,
                },
            },
        },
    });
    // Convert Date objects to ISO strings
    const serializableItems = items.map(item => ({
        ...item,
        startTime: item.startTime.toISOString(),
        endTime: item.endTime.toISOString(),
        name: common.getTimeFomatted(item.startTime) + "-" + common.getTimeFomatted(item.endTime),
        //endDate can be null
        endDate: item.endDate ? item.endDate.toISOString() : null,
        type: 'availability',
        // Convert other Date fields similarly if they exist
    }));

    /*model Assignment {
  id              Int       @id @default(autoincrement())
  shift           Shift     @relation(fields: [shiftId], references: [id], onDelete: Cascade)
  shiftId         Int
  publisher       Publisher @relation(fields: [publisherId], references: [id], onDelete: Cascade)
  publisherId     String
  isActive        Boolean   @default(true)
  isConfirmed     Boolean   @default(false)
  isWithTransport Boolean   @default(false)
  Report          Report[]
}*/
    //get assignments for this user
    const assignments = await prismaClient.assignment.findMany({
        where: {
            publisherId: userId,
        },
        select: {
            id: true,
            isBySystem: true,
            isConfirmed: true,
            isWithTransport: true,
            shift: {
                select: {
                    id: true,
                    name: true,
                    startTime: true,
                    endTime: true,
                    //select all assigned publishers names as name - comma separated
                    assignments: {
                        select: {
                            publisher: {
                                select: {
                                    firstName: true,
                                    lastName: true,
                                }
                            }
                        }
                    }
                }
            }
        }
    });

    const serializableAssignments = assignments.map(item => ({
        ...item,
        startTime: item.shift.startTime.toISOString(),
        endTime: item.shift.endTime.toISOString(),
        // name: item.shift.publishers.map(p => p.firstName + " " + p.lastName).join(", "),
        //name: item.shift.assignments.map(a => a.publisher.firstName[0] + " " + a.publisher.lastName).join(", "),
        name: common.getTimeFomatted(new Date(item.shift.startTime)) + "-" + common.getTimeFomatted(new Date(item.shift.endTime)),
        type: 'assignment',
        //delete shift object
        shift: null,
        publisher: { id: userId }
    }));

    serializableItems.push(...serializableAssignments);

    return serializableItems;

}
export const getServerSideProps = async (context) => {
    const auth = await serverSideAuth({
        req: context.req,
        allowedRoles: [/* ...allowed roles... */]
    });
    const session = await getSession(context);
    const sessionServer = await getServerSession(context.req, context.res, authOptions)

    if (!session) { return { props: {} } }
    const role = session?.user.role;
    console.log("server role: " + role);
    const userId = session?.user.id;

    var items = await getAvailabilities(session.user.id);

    return {
        props: {
            initialItems: items,
            userId: session?.user.id,
        },
    };
}