'use strict';

const dotty = require("dotty");
const asciiDataTable = require("ascii-data-table");
const defaultValue = require("default-value");
const buffertrim = require("buffertrim");

const renderBytes = require("./bytes");

function formatCreationDate(creationDate) {
    if (creationDate != null) {
        return creationDate.format("llll");
    } else {
        return "";
    }
}

function formatVolumePosition(sequenceNumber, setSize) {
    if (sequenceNumber != null) {
        return `${sequenceNumber}/${setSize}`;
    } else {
        return "";
    }
}

function formatEncodings(encodings) {
    if (encodings != null) {
        return encodings.join(", ");
    } else {
        return "";
    }
}

let headers = [
    "ID",
    "Type",
    "System",
    "Volume",
    "Volume identifier",
    "Encoding",
    "Extent",
    "Creation date"
];

module.exports = function renderVolumeTable(volumeDescriptors) {
    let tableData = volumeDescriptors.map((descriptor, i) => {

        let volumeIndex = descriptor.volumeDescriptorIndex;
        let volumeType = descriptor.type;
        let systemIdentifier = defaultValue(descriptor.data.systemIdentifier, "");
        let volumeIdentifier = defaultValue(descriptor.data.volumeIdentifier, "");
        let extentSector = defaultValue(dotty.get(descriptor, "data.rootDirectory.extentLocation"), "");
        let creationDate = formatCreationDate(descriptor.data.creationDate);
        let volumePosition = formatVolumePosition(descriptor.data.sequenceNumber, descriptor.data.setSize);
        let encodings = formatEncodings(descriptor.data.encodings);

        return [
            volumeIndex,
            volumeType,
            systemIdentifier,
            volumePosition,
            volumeIdentifier,
            encodings,
            extentSector,
            creationDate
        ];
    });

    let tableDataWithHeaders = [headers].concat(tableData);

    return asciiDataTable.default.run(tableDataWithHeaders);
};