import { useItemStore } from "../providers/ItemsProvider"
import { useState } from "react"
import useAsyncEffect from "use-async-effect"
import styled from "styled-components"
import { Mutex } from "async-mutex"

type OrderItemTableProps = {
    orderId: number
}


const OrderItemTableStyle = styled.table`
    width: 100%
        `
const OrderItemTableHead = styled.thead`
    background-color: #34067eff
`
const OrderItemTableItem = styled.td`
    align: center
`

const OrderItemTH = styled.th`
    align: center
`

const OrderItemTableBody = styled.tbody`
    > :nth-child(even) {
        background-color: #410041ff;
    }
    > :hover {
        background-color: #707070ff;
    }
`

const OrderItemTableRow = styled.tr`

`

const orderItemMutex = new Mutex()

export const OrderItemTable = ({orderId}: OrderItemTableProps) => {

    const itemStore = useItemStore((state) => state)

    const [orderItems, setOrderItems] = useState(itemStore.orderItems.filter((oi) => oi.OrderId === orderId))

    const [itemName, setItemName] = useState("")
    const [itemQuantity, setItemQuantity] = useState(0)
    const [shouldPostData, setShouldPostData] = useState(false)
    useAsyncEffect(async () => {
        if (orderItems.length === 0) {
            const release = await orderItemMutex.acquire()
            setOrderItems(await itemStore.getOrderItems(orderId))
            await release()
        }
        if (itemStore.items.length === 0) {
            const release = await orderItemMutex.acquire()
            await itemStore.sync()
            await release()
        }
    }, [])

    useAsyncEffect(async () => {
        if(shouldPostData) {
            const items = itemStore.items.filter((i) => i.ItemName.toUpperCase().includes(itemName.toUpperCase()))

            if(items.length > 0) {
                const release = await orderItemMutex.acquire()
                setOrderItems( [...orderItems, await itemStore.addItemToOrder(items[0].ItemId, orderId, itemQuantity)])
                await release()
            }
            setShouldPostData(false)
        }
    }, [shouldPostData])
    return (
        <>
            <OrderItemTableStyle>
                <OrderItemTableHead>
                    <tr>
                        <OrderItemTH>
                            item
                        </OrderItemTH>
                        <OrderItemTH>
                            needed
                        </OrderItemTH>
                        <OrderItemTH>
                            made
                        </OrderItemTH>
                        <OrderItemTH>
                            total
                        </OrderItemTH>
                        <OrderItemTH>
                            unit
                        </OrderItemTH>
                    </tr>
                </OrderItemTableHead>
                <OrderItemTableBody>
                    {orderItems.map((oi) => (
                        <OrderItemTableRow key = {oi.ItemId}>
                            <OrderItemTableItem>
                                {oi.ItemName}
                            </OrderItemTableItem>
                            <OrderItemTableItem>
                                <input className="w-10" defaultValue={oi.Quantity} onChange={async (e) => {
                                    if(!Number.isNaN(parseInt(e.currentTarget.value))) {
                                        await itemStore.setItemQuantity(oi.OrderId, oi.ItemId, parseInt(e.currentTarget.value))
                                    }
                                }} />
                            </OrderItemTableItem>
                            <OrderItemTableItem>
                                <input className="w-10" defaultValue={oi.Made} onChange={async (e) => {
                                    if(!Number.isNaN(parseInt(e.currentTarget.value))) {
                                        await itemStore.setItemMade(oi.OrderId, oi.ItemId, parseInt(e.currentTarget.value))
                                    }
                                    
                                }} />
                            </OrderItemTableItem>
                            <OrderItemTableItem>
                                ${Math.trunc(oi.TotalPrice * 100) / 100}
                            </OrderItemTableItem>
                            <OrderItemTableItem>
                                ${Math.trunc(oi.UnitPrice * 100) / 100}
                            </OrderItemTableItem>
                        </OrderItemTableRow>
                    ))}
                </OrderItemTableBody>
            </OrderItemTableStyle>
            <h1 className="text-xl font-bold">Add Item To Order</h1>
            <div className="inline-block">
            <input className="inline-block w-40" onChange={(e) => {
                setItemName(e.currentTarget.value)
            }} placeholder="item name"/>
            <input className="inline-block w-40" onChange={(e) => {
                setItemQuantity(parseInt(e.currentTarget.value))
            }} placeholder="needed" />
            </div>
            <br />
            <button className="border border-white p-1 mt-3" onClick={() => {
                setShouldPostData(true)
            }}>Add Item</button>
        </>
    )
}