// FAT filesystem implementation (FAT12/16 and FAT32)

import { BaseFilesystem } from './base.js';
import { checkDependencies, updateResultItem } from '../utils.js';

export class FATFilesystem extends BaseFilesystem {
    constructor() {
        super('FAT', [
            {
                id: 'fat1216',
                name: 'FAT12/16',
                constants: [
                    { id: 'baseOffset1216', label: 'Basis-Offset', unit: 'Bytes', default: '0x0' },
                    { id: 'sectorSize1216', label: 'Sektorgröße', unit: 'Bytes', default: '0x200' }
                ],
                inputs: [
                    { id: 'reservedSectors1216', label: 'Reservierte Sektoren', unit: 'Anzahl', placeholder: '0x1' },
                    { id: 'numFATs1216', label: 'Anzahl FATs', unit: 'Anzahl', placeholder: '0x2' },
                    { id: 'fatSizeSectors1216', label: 'FAT-Größe', unit: 'Sektoren', placeholder: '0x4000' },
                    { id: 'maxRootEntries1216', label: 'Max. Root-Einträge', unit: 'Anzahl', placeholder: '0x200' },
                    { id: 'partitionSizeInSectors1216', label: 'Partitionsgröße', unit: 'Sektoren', placeholder: '0x4015' },
                    { id: 'clusterSizeSectors1216', label: 'Clustergröße', unit: 'Sektoren', placeholder: '0x2' },
                    { id: 'clusterNumber1216', label: 'Cluster-Nummer', unit: 'Nummer', placeholder: '0x2' }
                ],
                resultGroups: [
                    {
                        name: 'FAT-Struktur',
                        results: [
                            { id: 'fatStart1216', label: 'FAT-Bereich Anfang (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216'], formula: 'reservedSectors × sectorSize + baseOffset' },
                            { id: 'fatStartSector1216', label: 'FAT-Bereich Anfang (Sektor)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216'], formula: 'fatStart ÷ sectorSize' },
                            { id: 'fatSize1216', label: 'FAT-Bereich Größe (Bytes)', dependencies: ['numFATs1216', 'fatSizeSectors1216', 'sectorSize1216'], formula: 'numFATs × fatSizeSectors × sectorSize' },
                            { id: 'fat2Start1216', label: 'FAT2 Anfang (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'fatSizeSectors1216'], formula: 'fatStart + (fatSizeSectors × sectorSize)' },
                            { id: 'fatEnd1216', label: 'FAT-Bereich Ende (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216'], formula: 'fatStart + fatSize' }
                        ]
                    },
                    {
                        name: 'Root-Directory',
                        results: [
                            { id: 'rootDirStart1216', label: 'Root-Directory Anfang (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216'], formula: 'fatEnd' },
                            { id: 'rootDirSize1216', label: 'Root-Directory Größe (Bytes)', dependencies: ['maxRootEntries1216'], formula: 'maxRootEntries × 0x20' }
                        ]
                    },
                    {
                        name: 'Daten-Bereich',
                        results: [
                            { id: 'dataStart1216', label: 'Daten-Bereich Anfang (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216'], formula: 'fatEnd + rootDirSize' },
                            { id: 'dataStartSector1216', label: 'Daten-Bereich Anfang (Sektor)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216'], formula: 'dataStart ÷ sectorSize' },
                            { id: 'dataSize1216', label: 'Daten-Bereich Größe (Bytes)', dependencies: ['partitionSizeInSectors1216', 'sectorSize1216', 'reservedSectors1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216'], formula: '(partitionSizeInSectors × sectorSize) - (dataStart - baseOffset)' },
                            { id: 'clusterSize1216', label: 'Cluster-Größe (Bytes)', dependencies: ['sectorSize1216', 'clusterSizeSectors1216'], formula: 'sectorSize × clusterSizeSectors' },
                            { id: 'numClusters1216', label: 'Anzahl Cluster', dependencies: ['partitionSizeInSectors1216', 'sectorSize1216', 'reservedSectors1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216', 'clusterSizeSectors1216'], formula: 'dataSize ÷ clusterSize' }
                        ]
                    },
                    {
                        name: 'Spezifischer Cluster',
                        results: [
                            { id: 'clusterStart1216', label: 'Cluster Anfang (Bytes)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216', 'clusterSizeSectors1216', 'clusterNumber1216'], formula: 'dataStart + (clusterNumber - 0x2) × clusterSize' },
                            { id: 'clusterStartSector1216', label: 'Cluster Anfang (Sektor)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'numFATs1216', 'fatSizeSectors1216', 'maxRootEntries1216', 'clusterSizeSectors1216', 'clusterNumber1216'], formula: 'clusterStart ÷ sectorSize' },
                            { id: 'fatEntryPos1216', label: 'FAT-Eintrag Position (Bytes, nur FAT16)', dependencies: ['reservedSectors1216', 'sectorSize1216', 'baseOffset1216', 'clusterNumber1216'], formula: 'fatStart + (clusterNumber × 2) für FAT16' }
                        ]
                    }
                ],
                formulas: [
                    { name: 'FAT-Bereich Anfang', expression: 'Reservierte Sektoren × Sektorgröße + Basis-Offset' },
                    { name: 'FAT-Bereich Größe', expression: 'Anzahl FATs × FAT-Größe in Sektoren × Sektorgröße' },
                    { name: 'FAT2 Anfang', expression: 'FAT-Bereich Anfang + FAT-Größe in Bytes' },
                    { name: 'FAT-Bereich Ende', expression: 'FAT-Bereich Anfang + FAT-Bereich Größe' },
                    { name: 'Root-Directory Größe', expression: 'Max. Root-Einträge × 0x20' },
                    { name: 'Daten-Bereich Anfang', expression: 'FAT-Bereich Ende + Root-Directory Größe' },
                    { name: 'Daten-Bereich Größe', expression: '(Partitionsgröße × Sektorgröße) - (Daten-Bereich Anfang - Basis-Offset)' },
                    { name: 'Cluster-Größe', expression: 'Sektorgröße × Cluster-Größe in Sektoren' },
                    { name: 'Anzahl Cluster', expression: 'Daten-Bereich Größe ÷ Cluster-Größe' },
                    { name: 'Cluster Anfang', expression: 'Daten-Bereich Anfang + (Cluster-Nummer - 0x2) × Cluster-Größe' },
                    { name: 'FAT-Eintrag Position', expression: 'FAT-Bereich Anfang + (Cluster-Nummer × Eintraggröße)' }
                ]
            },
            {
                id: 'fat32',
                name: 'FAT32',
                constants: [
                    { id: 'baseOffset32', label: 'Basis-Offset', unit: 'Bytes', default: '0x0' },
                    { id: 'sectorSize32', label: 'Sektorgröße', unit: 'Bytes', default: '0x200' }
                ],
                inputs: [
                    { id: 'reservedSectors32', label: 'Reservierte Sektoren', unit: 'Anzahl', placeholder: '0x20' },
                    { id: 'numFATs32', label: 'Anzahl FATs', unit: 'Anzahl', placeholder: '0x2' },
                    { id: 'fatSizeSectors32', label: 'FAT-Größe', unit: 'Sektoren', placeholder: '0x20000' },
                    { id: 'rootDirCluster32', label: 'Root-Directory Cluster', unit: 'Nummer', placeholder: '0x2' },
                    { id: 'partitionSizeInSectors32', label: 'Partitionsgröße', unit: 'Sektoren', placeholder: '0x100000' },
                    { id: 'clusterSizeSectors32', label: 'Clustergröße', unit: 'Sektoren', placeholder: '0x8' },
                    { id: 'clusterNumber32', label: 'Cluster-Nummer', unit: 'Nummer', placeholder: '0x2' }
                ],
                resultGroups: [
                    {
                        name: 'FAT-Struktur',
                        results: [
                            { id: 'fatStart32', label: 'FAT-Bereich Anfang (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32'], formula: 'reservedSectors × sectorSize + baseOffset' },
                            { id: 'fatStartSector32', label: 'FAT-Bereich Anfang (Sektor)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32'], formula: 'fatStart ÷ sectorSize' },
                            { id: 'fatSize32', label: 'FAT-Bereich Größe (Bytes)', dependencies: ['numFATs32', 'fatSizeSectors32', 'sectorSize32'], formula: 'numFATs × fatSizeSectors × sectorSize' },
                            { id: 'fat2Start32', label: 'FAT2 Anfang (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'fatSizeSectors32'], formula: 'fatStart + (fatSizeSectors × sectorSize)' },
                            { id: 'fatEnd32', label: 'FAT-Bereich Ende (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32'], formula: 'fatStart + fatSize' }
                        ]
                    },
                    {
                        name: 'Daten-Bereich',
                        results: [
                            { id: 'dataStart32', label: 'Daten-Bereich Anfang (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32'], formula: 'fatEnd' },
                            { id: 'dataStartSector32', label: 'Daten-Bereich Anfang (Sektor)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32'], formula: 'dataStart ÷ sectorSize' },
                            { id: 'dataSize32', label: 'Daten-Bereich Größe (Bytes)', dependencies: ['partitionSizeInSectors32', 'sectorSize32', 'reservedSectors32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32'], formula: '(partitionSizeInSectors × sectorSize) - (dataStart - baseOffset)' },
                            { id: 'clusterSize32', label: 'Cluster-Größe (Bytes)', dependencies: ['sectorSize32', 'clusterSizeSectors32'], formula: 'sectorSize × clusterSizeSectors' },
                            { id: 'numClusters32', label: 'Anzahl Cluster', dependencies: ['partitionSizeInSectors32', 'sectorSize32', 'reservedSectors32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32', 'clusterSizeSectors32'], formula: 'dataSize ÷ clusterSize' }
                        ]
                    },
                    {
                        name: 'Spezifischer Cluster',
                        results: [
                            { id: 'clusterStart32', label: 'Cluster Anfang (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32', 'clusterSizeSectors32', 'clusterNumber32'], formula: 'dataStart + (clusterNumber - 0x2) × clusterSize' },
                            { id: 'clusterStartSector32', label: 'Cluster Anfang (Sektor)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32', 'clusterSizeSectors32', 'clusterNumber32'], formula: 'clusterStart ÷ sectorSize' },
                            { id: 'fatEntryPos32', label: 'FAT-Eintrag Position (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'clusterNumber32'], formula: 'fatStart + (clusterNumber × 4)' },
                            { id: 'rootDirPos32', label: 'Root-Directory Position (Bytes)', dependencies: ['reservedSectors32', 'sectorSize32', 'baseOffset32', 'numFATs32', 'fatSizeSectors32', 'clusterSizeSectors32', 'rootDirCluster32'], formula: 'dataStart + (rootDirCluster - 0x2) × clusterSize' }
                        ]
                    }
                ],
                formulas: [
                    { name: 'FAT-Bereich Anfang', expression: 'Reservierte Sektoren × Sektorgröße + Basis-Offset' },
                    { name: 'FAT-Bereich Größe', expression: 'Anzahl FATs × FAT-Größe in Sektoren × Sektorgröße' },
                    { name: 'FAT2 Anfang', expression: 'FAT-Bereich Anfang + FAT-Größe in Bytes' },
                    { name: 'FAT-Bereich Ende', expression: 'FAT-Bereich Anfang + FAT-Bereich Größe' },
                    { name: 'Daten-Bereich Anfang', expression: 'FAT-Bereich Ende (kein festes Root Directory)' },
                    { name: 'Daten-Bereich Größe', expression: '(Partitionsgröße × Sektorgröße) - (Daten-Bereich Anfang - Basis-Offset)' },
                    { name: 'Cluster-Größe', expression: 'Sektorgröße × Cluster-Größe in Sektoren' },
                    { name: 'Anzahl Cluster', expression: 'Daten-Bereich Größe ÷ Cluster-Größe' },
                    { name: 'Cluster Anfang', expression: 'Daten-Bereich Anfang + (Cluster-Nummer - 0x2) × Cluster-Größe' },
                    { name: 'FAT-Eintrag Position', expression: 'FAT-Bereich Anfang + (Cluster-Nummer × 4)' },
                    { name: 'Root-Directory Position', expression: 'Daten-Bereich Anfang + (Root-Directory Cluster - 0x2) × Cluster-Größe' }
                ]
            }
        ]);
    }

    calculate(variantId) {
        const values = this.getInputValues(variantId);
        const results = {};

        if (variantId === 'fat1216') {
            this.calculateFAT1216(values, results);
        } else if (variantId === 'fat32') {
            this.calculateFAT32(values, results);
        }
    }

    calculateFAT1216(values, results) {
        const suffix = '1216';

        // FAT Start
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize${suffix}`, `baseOffset${suffix}`])) {
            results.fatStart = values.reservedSectors1216 * values.sectorSize1216 + values.baseOffset1216;
            results.fatStartSector = Math.floor(results.fatStart / values.sectorSize1216);
            updateResultItem(`fatStart${suffix}`, results.fatStart, true, 
                `0x${values.reservedSectors1216.toString(16)} × 0x${values.sectorSize1216.toString(16)} + 0x${values.baseOffset1216.toString(16)} = 0x${results.fatStart.toString(16)}`);
            updateResultItem(`fatStartSector${suffix}`, results.fatStartSector, true,
                `0x${results.fatStart.toString(16)} ÷ 0x${values.sectorSize1216.toString(16)} = 0x${results.fatStartSector.toString(16)}`);
        } else {
            updateResultItem(`fatStart${suffix}`, 0, false);
            updateResultItem(`fatStartSector${suffix}`, 0, false);
        }

        // FAT Size
        if (checkDependencies([`numFATs${suffix}`, `fatSizeSectors${suffix}`, `sectorSize${suffix}`])) {
            results.fatSize = values.numFATs1216 * values.fatSizeSectors1216 * values.sectorSize1216;
            updateResultItem(`fatSize${suffix}`, results.fatSize, true,
                `0x${values.numFATs1216.toString(16)} × 0x${values.fatSizeSectors1216.toString(16)} × 0x${values.sectorSize1216.toString(16)} = 0x${results.fatSize.toString(16)}`);
        } else {
            updateResultItem(`fatSize${suffix}`, 0, false);
        }

        // FAT2 Start
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize${suffix}`, `baseOffset${suffix}`, `fatSizeSectors${suffix}`]) && results.fatStart !== undefined) {
            results.fat2Start = results.fatStart + (values.fatSizeSectors1216 * values.sectorSize1216);
            updateResultItem(`fat2Start${suffix}`, results.fat2Start, true,
                `0x${results.fatStart.toString(16)} + 0x${(values.fatSizeSectors1216 * values.sectorSize1216).toString(16)} = 0x${results.fat2Start.toString(16)}`);
        } else {
            updateResultItem(`fat2Start${suffix}`, 0, false);
        }

        // FAT End
        if (results.fatStart !== undefined && results.fatSize !== undefined) {
            results.fatEnd = results.fatStart + results.fatSize;
            updateResultItem(`fatEnd${suffix}`, results.fatEnd, true,
                `0x${results.fatStart.toString(16)} + 0x${results.fatSize.toString(16)} = 0x${results.fatEnd.toString(16)}`);
        } else {
            updateResultItem(`fatEnd${suffix}`, 0, false);
        }

        // Root Directory Size
        if (checkDependencies(['maxRootEntries1216'])) {
            results.rootDirSize = values.maxRootEntries1216 * 0x20;
            updateResultItem('rootDirSize1216', results.rootDirSize, true,
                `0x${values.maxRootEntries1216.toString(16)} × 0x20 = 0x${results.rootDirSize.toString(16)}`);
        } else {
            updateResultItem('rootDirSize1216', 0, false);
        }

        // Root Directory Start
        if (results.fatEnd !== undefined) {
            results.rootDirStart = results.fatEnd;
            updateResultItem('rootDirStart1216', results.rootDirStart, true,
                `0x${results.fatEnd.toString(16)}`);
        } else {
            updateResultItem('rootDirStart1216', 0, false);
        }

        // Data Start
        if (results.fatEnd !== undefined && results.rootDirSize !== undefined) {
            results.dataStart = results.fatEnd + results.rootDirSize;
            results.dataStartSector = Math.floor(results.dataStart / values.sectorSize1216);
            updateResultItem('dataStart1216', results.dataStart, true,
                `0x${results.fatEnd.toString(16)} + 0x${results.rootDirSize.toString(16)} = 0x${results.dataStart.toString(16)}`);
            updateResultItem('dataStartSector1216', results.dataStartSector, true,
                `0x${results.dataStart.toString(16)} ÷ 0x${values.sectorSize1216.toString(16)} = 0x${results.dataStartSector.toString(16)}`);
        } else {
            updateResultItem('dataStart1216', 0, false);
            updateResultItem('dataStartSector1216', 0, false);
        }

        // Data Size
        const requiredForDataSize = [`partitionSizeInSectors${suffix}`, `sectorSize1216`, `reservedSectors${suffix}`, `baseOffset1216`, `numFATs${suffix}`, `fatSizeSectors${suffix}`, 'maxRootEntries1216'];
        if (checkDependencies(requiredForDataSize) && results.dataStart !== undefined) {
            const partitionSizeBytes = values.partitionSizeInSectors1216 * values.sectorSize1216;
            results.dataSize = partitionSizeBytes - (results.dataStart - values.baseOffset1216);
            updateResultItem(`dataSize${suffix}`, results.dataSize, true,
                `(0x${values.partitionSizeInSectors1216.toString(16)} × 0x${values.sectorSize1216.toString(16)}) - (0x${results.dataStart.toString(16)} - 0x${values.baseOffset1216.toString(16)}) = 0x${results.dataSize.toString(16)}`);
        } else {
            updateResultItem(`dataSize${suffix}`, 0, false);
        }

        // Cluster Size
        if (checkDependencies([`sectorSize1216`, `clusterSizeSectors${suffix}`])) {
            results.clusterSize = values.sectorSize1216 * values.clusterSizeSectors1216;
            updateResultItem(`clusterSize${suffix}`, results.clusterSize, true,
                `0x${values.sectorSize1216.toString(16)} × 0x${values.clusterSizeSectors1216.toString(16)} = 0x${results.clusterSize.toString(16)}`);
        } else {
            updateResultItem(`clusterSize${suffix}`, 0, false);
        }

        // Number of Clusters
        if (results.dataSize !== undefined && results.clusterSize !== undefined && results.clusterSize > 0) {
            results.numClusters = Math.floor(results.dataSize / results.clusterSize);
            updateResultItem(`numClusters${suffix}`, results.numClusters, true,
                `0x${results.dataSize.toString(16)} ÷ 0x${results.clusterSize.toString(16)} = 0x${results.numClusters.toString(16)}`);
        } else {
            updateResultItem(`numClusters${suffix}`, 0, false);
        }

        // Specific Cluster Start
        const requiredForCluster = [`reservedSectors${suffix}`, `sectorSize1216`, `baseOffset1216`, `numFATs${suffix}`, `fatSizeSectors${suffix}`, 'maxRootEntries1216', `clusterSizeSectors${suffix}`, `clusterNumber${suffix}`];
        if (checkDependencies(requiredForCluster) && results.dataStart !== undefined && results.clusterSize !== undefined) {
            results.clusterStart = results.dataStart + (values.clusterNumber1216 - 0x2) * results.clusterSize;
            results.clusterStartSector = Math.floor(results.clusterStart / values.sectorSize1216);
            updateResultItem(`clusterStart${suffix}`, results.clusterStart, true,
                `0x${results.dataStart.toString(16)} + (0x${values.clusterNumber1216.toString(16)} - 0x2) × 0x${results.clusterSize.toString(16)} = 0x${results.clusterStart.toString(16)}`);
            updateResultItem(`clusterStartSector${suffix}`, results.clusterStartSector, true,
                `0x${results.clusterStart.toString(16)} ÷ 0x${values.sectorSize1216.toString(16)} = 0x${results.clusterStartSector.toString(16)}`);
        } else {
            updateResultItem(`clusterStart${suffix}`, 0, false);
            updateResultItem(`clusterStartSector${suffix}`, 0, false);
        }

        // FAT Entry Position
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize1216`, `baseOffset1216`, `clusterNumber${suffix}`]) && results.fatStart !== undefined) {
            const entrySize = 2; // FAT16 uses 2 bytes per entry
            results.fatEntryPos = results.fatStart + (values.clusterNumber1216 * entrySize);
            updateResultItem(`fatEntryPos${suffix}`, results.fatEntryPos, true,
                `0x${results.fatStart.toString(16)} + (0x${values.clusterNumber1216.toString(16)} × ${entrySize}) = 0x${results.fatEntryPos.toString(16)}`);
        } else {
            updateResultItem(`fatEntryPos${suffix}`, 0, false);
        }
    }

    calculateFAT32(values, results) {
        const suffix = '32';

        // FAT Start
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize${suffix}`, `baseOffset${suffix}`])) {
            results.fatStart = values.reservedSectors32 * values.sectorSize32 + values.baseOffset32;
            results.fatStartSector = Math.floor(results.fatStart / values.sectorSize32);
            updateResultItem(`fatStart${suffix}`, results.fatStart, true, 
                `0x${values.reservedSectors32.toString(16)} × 0x${values.sectorSize32.toString(16)} + 0x${values.baseOffset32.toString(16)} = 0x${results.fatStart.toString(16)}`);
            updateResultItem(`fatStartSector${suffix}`, results.fatStartSector, true,
                `0x${results.fatStart.toString(16)} ÷ 0x${values.sectorSize32.toString(16)} = 0x${results.fatStartSector.toString(16)}`);
        } else {
            updateResultItem(`fatStart${suffix}`, 0, false);
            updateResultItem(`fatStartSector${suffix}`, 0, false);
        }

        // FAT Size
        if (checkDependencies([`numFATs${suffix}`, `fatSizeSectors${suffix}`, `sectorSize${suffix}`])) {
            results.fatSize = values.numFATs32 * values.fatSizeSectors32 * values.sectorSize32;
            updateResultItem(`fatSize${suffix}`, results.fatSize, true,
                `0x${values.numFATs32.toString(16)} × 0x${values.fatSizeSectors32.toString(16)} × 0x${values.sectorSize32.toString(16)} = 0x${results.fatSize.toString(16)}`);
        } else {
            updateResultItem(`fatSize${suffix}`, 0, false);
        }

        // FAT2 Start
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize${suffix}`, `baseOffset${suffix}`, `fatSizeSectors${suffix}`]) && results.fatStart !== undefined) {
            results.fat2Start = results.fatStart + (values.fatSizeSectors32 * values.sectorSize32);
            updateResultItem(`fat2Start${suffix}`, results.fat2Start, true,
                `0x${results.fatStart.toString(16)} + 0x${(values.fatSizeSectors32 * values.sectorSize32).toString(16)} = 0x${results.fat2Start.toString(16)}`);
        } else {
            updateResultItem(`fat2Start${suffix}`, 0, false);
        }

        // FAT End
        if (results.fatStart !== undefined && results.fatSize !== undefined) {
            results.fatEnd = results.fatStart + results.fatSize;
            updateResultItem(`fatEnd${suffix}`, results.fatEnd, true,
                `0x${results.fatStart.toString(16)} + 0x${results.fatSize.toString(16)} = 0x${results.fatEnd.toString(16)}`);
        } else {
            updateResultItem(`fatEnd${suffix}`, 0, false);
        }

        // Data Start (FAT32 has no fixed root directory)
        if (results.fatEnd !== undefined) {
            results.dataStart = results.fatEnd;
            results.dataStartSector = Math.floor(results.dataStart / values.sectorSize32);
            updateResultItem('dataStart32', results.dataStart, true,
                `0x${results.fatEnd.toString(16)}`);
            updateResultItem('dataStartSector32', results.dataStartSector, true,
                `0x${results.dataStart.toString(16)} ÷ 0x${values.sectorSize32.toString(16)} = 0x${results.dataStartSector.toString(16)}`);
        } else {
            updateResultItem('dataStart32', 0, false);
            updateResultItem('dataStartSector32', 0, false);
        }

        // Data Size
        const requiredForDataSize = [`partitionSizeInSectors${suffix}`, `sectorSize32`, `reservedSectors${suffix}`, `baseOffset32`, `numFATs${suffix}`, `fatSizeSectors${suffix}`];
        if (checkDependencies(requiredForDataSize) && results.dataStart !== undefined) {
            const partitionSizeBytes = values.partitionSizeInSectors32 * values.sectorSize32;
            results.dataSize = partitionSizeBytes - (results.dataStart - values.baseOffset32);
            updateResultItem(`dataSize${suffix}`, results.dataSize, true,
                `(0x${values.partitionSizeInSectors32.toString(16)} × 0x${values.sectorSize32.toString(16)}) - (0x${results.dataStart.toString(16)} - 0x${values.baseOffset32.toString(16)}) = 0x${results.dataSize.toString(16)}`);
        } else {
            updateResultItem(`dataSize${suffix}`, 0, false);
        }

        // Cluster Size
        if (checkDependencies([`sectorSize32`, `clusterSizeSectors${suffix}`])) {
            results.clusterSize = values.sectorSize32 * values.clusterSizeSectors32;
            updateResultItem(`clusterSize${suffix}`, results.clusterSize, true,
                `0x${values.sectorSize32.toString(16)} × 0x${values.clusterSizeSectors32.toString(16)} = 0x${results.clusterSize.toString(16)}`);
        } else {
            updateResultItem(`clusterSize${suffix}`, 0, false);
        }

        // Number of Clusters
        if (results.dataSize !== undefined && results.clusterSize !== undefined && results.clusterSize > 0) {
            results.numClusters = Math.floor(results.dataSize / results.clusterSize);
            updateResultItem(`numClusters${suffix}`, results.numClusters, true,
                `0x${results.dataSize.toString(16)} ÷ 0x${results.clusterSize.toString(16)} = 0x${results.numClusters.toString(16)}`);
        } else {
            updateResultItem(`numClusters${suffix}`, 0, false);
        }

        // Specific Cluster Start
        const requiredForCluster = [`reservedSectors${suffix}`, `sectorSize32`, `baseOffset32`, `numFATs${suffix}`, `fatSizeSectors${suffix}`, `clusterSizeSectors${suffix}`, `clusterNumber${suffix}`];
        if (checkDependencies(requiredForCluster) && results.dataStart !== undefined && results.clusterSize !== undefined) {
            results.clusterStart = results.dataStart + (values.clusterNumber32 - 0x2) * results.clusterSize;
            results.clusterStartSector = Math.floor(results.clusterStart / values.sectorSize32);
            updateResultItem(`clusterStart${suffix}`, results.clusterStart, true,
                `0x${results.dataStart.toString(16)} + (0x${values.clusterNumber32.toString(16)} - 0x2) × 0x${results.clusterSize.toString(16)} = 0x${results.clusterStart.toString(16)}`);
            updateResultItem(`clusterStartSector${suffix}`, results.clusterStartSector, true,
                `0x${results.clusterStart.toString(16)} ÷ 0x${values.sectorSize32.toString(16)} = 0x${results.clusterStartSector.toString(16)}`);
        } else {
            updateResultItem(`clusterStart${suffix}`, 0, false);
            updateResultItem(`clusterStartSector${suffix}`, 0, false);
        }

        // FAT Entry Position
        if (checkDependencies([`reservedSectors${suffix}`, `sectorSize32`, `baseOffset32`, `clusterNumber${suffix}`]) && results.fatStart !== undefined) {
            const entrySize = 4; // FAT32 uses 4 bytes per entry
            results.fatEntryPos = results.fatStart + (values.clusterNumber32 * entrySize);
            updateResultItem(`fatEntryPos${suffix}`, results.fatEntryPos, true,
                `0x${results.fatStart.toString(16)} + (0x${values.clusterNumber32.toString(16)} × ${entrySize}) = 0x${results.fatEntryPos.toString(16)}`);
        } else {
            updateResultItem(`fatEntryPos${suffix}`, 0, false);
        }

        // Root Directory Position (FAT32 specific)
        const requiredForRootPos = [`reservedSectors${suffix}`, `sectorSize32`, `baseOffset32`, `numFATs${suffix}`, `fatSizeSectors${suffix}`, `clusterSizeSectors${suffix}`, `rootDirCluster32`];
        if (checkDependencies(requiredForRootPos) && results.dataStart !== undefined && results.clusterSize !== undefined) {
            results.rootDirPos = results.dataStart + (values.rootDirCluster32 - 0x2) * results.clusterSize;
            updateResultItem('rootDirPos32', results.rootDirPos, true,
                `0x${results.dataStart.toString(16)} + (0x${values.rootDirCluster32.toString(16)} - 0x2) × 0x${results.clusterSize.toString(16)} = 0x${results.rootDirPos.toString(16)}`);
        } else {
            updateResultItem('rootDirPos32', 0, false);
        }
    }
}