package org.simantics.district.imports.ui;

import java.io.IOException;
import java.nio.file.Path;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.csv.CSVRecord;
import org.simantics.db.Resource;
import org.simantics.district.imports.DistrictImportUtils;
import org.simantics.district.imports.DistrictImportUtils.CSVHeader;

public class CSVImportModel {

    // First page fills these
    private Resource targetDiagram;
    private Path source;
    
    // Second page fills these
    private char delimiter;
    private boolean read;
    private Map<String, Character> delimiters;
    private Path wktFile;
    
    // Vertex import
    private int xCoordIndex = -1;
    private int yCoordIndex = -1;
    private int zCoordIndex = -1;
    
    // Edge import
    private int startXCoordIndex = -1;
    private int startYCoordIndex = -1;
    private int startZCoordIndex = -1;
    private int endXCoordIndex = -1;
    private int endYCoordIndex = -1;
    private int endZCoordIndex = -1;
    
    // common
    private int componentMappingIndex = -1;
    private Map<String, Resource> componentMappings = new HashMap<>();
    private boolean isVertexImport;
    
    // Third page

    public CSVImportModel() {
        delimiters = DistrictImportUtils.getSupportedCSVDelimiterFormats();
    }
    
    public void setSource(Path source) {
        this.source = source;
    }

    public void setDelimiter(char delimiter) {
        this.delimiter = delimiter;
    }

    public void setReadFirstAsHeader(boolean read) {
        this.read = read;
    }

    public Path getSource() {
        return source;
    }

    public List<CSVRecord> getRows(int amount) throws IOException {
        if (source != null)
            return DistrictImportUtils.readRows(source, delimiter, amount);
        else
            return Collections.emptyList();
    }
    
    public Map<CSVHeader, List<String>> getHeaderAndRows(int amount) throws IOException {
        if (source != null)
            return DistrictImportUtils.readCSVHeaderAndRows(source, delimiter, read, amount);
        else
            return Collections.emptyMap();
    }
    
    public Map<String, Integer> getHeader() throws IOException {
        Map<String, Integer> header = null;
        if (source != null)
            header = DistrictImportUtils.readCSVHeader(source, delimiter, read);
        if (header == null)
            header = Collections.emptyMap();
        return header;
    }

    public boolean getReadFirstAsHeader() {
        return read;
    }

    public String[] getDelimiterFormats() {
        return delimiters.keySet().toArray(new String[delimiters.size()]);
    }

    public void setDelimiterByLabel(String item) {
        setDelimiter(delimiters.get(item));
    }

    public List<Map<String, String>> readRows(int amount) throws IOException {
        if (source != null)
            return DistrictImportUtils.readRows(source, delimiter, read, amount);
        else
            return Collections.emptyList();
    }

    public char getDelimiter() {
        return delimiter;
    }

    public Path getWKTFile() {
        return wktFile;
    }

    public int getXCoordIndex() {
        return xCoordIndex;
    }

    public void setXCoordIndex(int xCoordIndex) {
        this.xCoordIndex = xCoordIndex;
    }

    public int getYCoordIndex() {
        return yCoordIndex;
    }

    public void setYCoordIndex(int yCoordIndex) {
        this.yCoordIndex = yCoordIndex;
    }

    public int getZCoordIndex() {
        return zCoordIndex;
    }

    public void setZCoordIndex(int zCoordIndex) {
        this.zCoordIndex = zCoordIndex;
    }

    public int getComponentMappingIndex() {
        return componentMappingIndex;
    }
    
    public void setComponentMappingIndex(int componentMappingIndex) {
        this.componentMappingIndex = componentMappingIndex;
    }

    public void setParentDiagram(Resource diagram) {
        this.targetDiagram = diagram;
    }

    public Resource getParentDiagram() {
        return targetDiagram;
    }

    public void setWKTFile(Path wktFile) {
        this.wktFile = wktFile;
    }

    public void setComponentMappings(String value, Resource resource) {
        componentMappings.put(value, resource);
    }

    public Map<String, Resource> getComponentMappings() {
        return componentMappings;
    }

    public boolean isVertexImport() {
        return isVertexImport;
    }
    
    public void setVertexImport(boolean isVertexImport) {
        this.isVertexImport = isVertexImport;
    }

    public void setStartXCoordIndex(int parseInt) {
        this.startXCoordIndex = parseInt;
    }
    
    public int getStartXCoordIndex() {
        return startXCoordIndex;
    }

    public void setStartYCoordIndex(int parseInt) {
        this.startYCoordIndex = parseInt;
    }
    
    public int getStartYCoordIndex() {
        return startYCoordIndex;
    }

    public void setStartZCoordIndex(int parseInt) {
        this.startZCoordIndex = parseInt;
    }
    
    public int getStartZCoordIndex() {
        return startZCoordIndex;
    }

    public void setEndXCoordIndex(int parseInt) {
        this.endXCoordIndex = parseInt;
    }
    
    public int getEndXCoordIndex() {
        return endXCoordIndex;
    }

    public void setEndYCoordIndex(int parseInt) {
        this.endYCoordIndex = parseInt;
    }
    
    public int getEndYCoordIndex() {
        return endYCoordIndex;
    }

    public void setEndZCoordIndex(int parseInt) {
        this.endZCoordIndex = parseInt;
    }
    
    public int getEndZCoordIndex() {
        return endZCoordIndex;
    }

}