import { useState, useCallback, useContext } from "react";
import { Button, Box, Stack, Typography } from "@mui/material";
import { ConfigBox } from "../../../Pages/Uptime/styled";
import { useTheme } from "@emotion/react";
import TabPanel from "@mui/lab/TabPanel";
import { publicPageGeneralSettingsValidation } from "../../../Validation/validation";
import { buildErrors } from "../../../Validation/error";
import Card from "./Card";
import update from "immutability-helper";
import Checkbox from "../../Inputs/Checkbox";
import { StatusFormContext } from "../../../Pages/Status/CreateStatusContext";

const ContentPanel = () => {
	const theme = useTheme();
	const { form, setForm, errors, setErrors  } = useContext(StatusFormContext);
	const [cards, setCards] = useState(form.monitors);

	const moveCard = useCallback(
		(dragIndex, hoverIndex) => {
			const dragCard = cards[dragIndex];
			setCards(
				update(cards, {
					$splice: [
						[dragIndex, 1],
						[hoverIndex, 0, dragCard],
					],
				})
			);
		},
		[cards]
	);

	const handleChange = (event) => {
		event.preventDefault();
		const { value, id } = event.target;
		setForm((prev) => ({
			...prev,
			[id]: value,
		}));
	};

	const handleCardChange = (event) => {
		event.preventDefault();
		const { value, id } = event.target;
		let idx = cards.findIndex((a) => a.id == id);
		if (idx >= 0) {
			let x = JSON.parse(JSON.stringify(cards[idx]));
			x.url = value;
			setCards(update(cards, { $splice: [[idx, 1, x]] }));
		} else setCards(update(cards, { $push: [{ id: id, url: value }] }));
	}
	const handleAddNew = () => {
		setCards([...cards, { id: "" + Math.random() }]);
	};
	const removeCard = (id) => {
		setCards(cards.filter((c) => c?.id != id));
	};
	const handleBlur = (event) => {
		event.preventDefault();
		const { value, id } = event.target;
		const { error } = publicPageGeneralSettingsValidation.validate(
			{ [id]: value },
			{
				abortEarly: false,
			}
		);

		setErrors((prev) => {
			return buildErrors(prev, id, error);
		});
	};

	return (
		<TabPanel
			value="Contents"
			sx={{
				"& h1, & p, & input": {
					color: theme.palette.text.tertiary,
				},
			}}
		>
			<Stack
				component="form"
				className="status-contents-form"
				noValidate
				spellCheck="false"
				gap={theme.spacing(12)}
				mt={theme.spacing(6)}
			>
				<ConfigBox>
					<Box>
						<Stack gap={theme.spacing(6)}>
							<Typography component="h2">Status page servers</Typography>
							<Typography component="p">
								You can add any number of servers that you monitor to your status page.
								You can also reorder them for the best viewing experience.
							</Typography>
						</Stack>
					</Box>
					<Box
						className="status-contents-server-list"
						sx={{
							margin: theme.spacing(20),
							//padding: theme.spacing(20),
							border: "solid",
							borderRadius: theme.shape.borderRadius,
							borderColor: theme.palette.border.light,
							borderWidth: "1px",
							transition: "0.2s",
							"&:hover": {
								borderColor: theme.palette.primary.main,
								backgroundColor: "hsl(215, 87%, 51%, 0.05)",
							},
						}}
					>
						<Box>
							<Stack
								direction="row"
								justifyContent="space-around"
							>
								<Typography
									component="p"
									alignSelf={"center"}
								>
									{" "}
									Servers list{" "}
								</Typography>
								<Button onClick={handleAddNew}>Add New</Button>
							</Stack>
							{cards.length > 0 && (
								<Stack
									direction="column"
									alignItems="center"
									gap={theme.spacing(6)}
									sx={{
										ml: theme.spacing(4),
										mr: theme.spacing(8),
										mb: theme.spacing(8),
									}}
								>
									{cards.map((card, idx) => (
										<Card
											key={idx}
											index={idx}
											id={card?.id ?? "" + Math.random()}
											text={"" + idx}
											moveCard={moveCard}
											removeCard={removeCard}
											value={card?.url??""}
											onChange = {handleCardChange}
										/>
									))}
								</Stack>
							)}
						</Box>
					</Box>
				</ConfigBox>
				<ConfigBox>
					<Box>
						<Stack gap={theme.spacing(6)}>
							<Typography component="h2">Features</Typography>
							<Typography component="p">Show more details on the status page</Typography>
						</Stack>
					</Box>
					<Stack	sx={{margin: theme.spacing(20)}}
					>
						<Checkbox
							id="show-barcode"
							label={`Show Barcode`}
							isChecked={form.showBarcode}
							onChange={handleChange}
							onBlur={handleBlur}
						/>
						<Checkbox
							id="show-uptime-percentage"
							label={`Show Uptime Percentage`}
							isChecked={form.showUptimePercentage}
							onChange={handleChange}
							onBlur={handleBlur}
						/>						
					</Stack>
				</ConfigBox>
			</Stack>
		</TabPanel>
	);
};

export default ContentPanel;