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   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
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       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.hssf.record;

import java.util.Arrays;

import org.apache.poi.hssf.record.cf.ColorGradientFormatting;
import org.apache.poi.hssf.record.cf.ColorGradientThreshold;
import org.apache.poi.hssf.record.cf.DataBarFormatting;
import org.apache.poi.hssf.record.cf.DataBarThreshold;
import org.apache.poi.hssf.record.cf.IconMultiStateFormatting;
import org.apache.poi.hssf.record.cf.IconMultiStateThreshold;
import org.apache.poi.hssf.record.cf.Threshold;
import org.apache.poi.hssf.record.common.ExtendedColor;
import org.apache.poi.hssf.record.common.FtrHeader;
import org.apache.poi.hssf.record.common.FutureRecord;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.ss.formula.Formula;
import org.apache.poi.ss.formula.ptg.Ptg;
import org.apache.poi.ss.usermodel.ConditionalFormattingThreshold.RangeType;
import org.apache.poi.ss.usermodel.IconMultiStateFormatting.IconSet;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.util.HexDump;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.LittleEndianOutput;
import org.apache.poi.util.POILogger;

Conditional Formatting v12 Rule Record (0x087A). 
This is for newer-style Excel conditional formattings,
 from Excel 2007 onwards.
 
CFRuleRecord is used where the condition type is CFRuleBase.CONDITION_TYPE_CELL_VALUE_IS or CFRuleBase.CONDITION_TYPE_FORMULA, this is only used for the other types /**
 * Conditional Formatting v12 Rule Record (0x087A). 
 * 
 * <p>This is for newer-style Excel conditional formattings,
 *  from Excel 2007 onwards.
 *  
 * <p>{@link CFRuleRecord} is used where the condition type is
 *  {@link #CONDITION_TYPE_CELL_VALUE_IS} or {@link #CONDITION_TYPE_FORMULA},
 *  this is only used for the other types
 */
public final class CFRule12Record extends CFRuleBase implements FutureRecord, Cloneable {

    //arbitrarily selected; may need to increase
    private static final int MAX_RECORD_LENGTH = 100_000;

    public static final short sid = 0x087A;

    private FtrHeader futureHeader;
    private int ext_formatting_length;
    private byte[] ext_formatting_data;
    private Formula formula_scale;
    private byte ext_opts;
    private int priority;
    private int template_type;
    private byte template_param_length;
    private byte[] template_params;
    
    private DataBarFormatting data_bar;
    private IconMultiStateFormatting multistate;
    private ColorGradientFormatting color_gradient;
    // TODO Parse this, see #58150
    private byte[] filter_data;

    
Creates new CFRuleRecord /** Creates new CFRuleRecord */
    private CFRule12Record(byte conditionType, byte comparisonOperation) {
        super(conditionType, comparisonOperation);
        setDefaults();
    }

    private CFRule12Record(byte conditionType, byte comparisonOperation, Ptg[] formula1, Ptg[] formula2, Ptg[] formulaScale) {
        super(conditionType, comparisonOperation, formula1, formula2);
        setDefaults();
        this.formula_scale = Formula.create(formulaScale);
    }
    private void setDefaults() {
        futureHeader = new FtrHeader();
        futureHeader.setRecordType(sid);
        
        ext_formatting_length = 0;
        ext_formatting_data = new byte[4];
        
        formula_scale = Formula.create(Ptg.EMPTY_PTG_ARRAY);
        
        ext_opts = 0;
        priority = 0;
        template_type = getConditionType();
        template_param_length = 16;
        template_params = IOUtils.safelyAllocate(template_param_length, MAX_RECORD_LENGTH);
    }

    
Creates a new comparison operation rule
Params:
sheet – the sheet
formulaText – the first formula text
Returns:
a new comparison operation rule/**
     * Creates a new comparison operation rule
     * 
     * @param sheet the sheet
     * @param formulaText the first formula text
     * 
     * @return a new comparison operation rule
     */
    public static CFRule12Record create(HSSFSheet sheet, String formulaText) {
        Ptg[] formula1 = parseFormula(formulaText, sheet);
        return new CFRule12Record(CONDITION_TYPE_FORMULA, ComparisonOperator.NO_COMPARISON,
                formula1, null, null);
    }
    
    
Creates a new comparison operation rule
Params:
sheet – the sheet
comparisonOperation – the comparison operation
formulaText1 – the first formula text
formulaText2 – the second formula text
Returns:
a new comparison operation rule/**
     * Creates a new comparison operation rule
     * 
     * @param sheet the sheet
     * @param comparisonOperation the comparison operation
     * @param formulaText1 the first formula text
     * @param formulaText2 the second formula text
     * 
     * @return a new comparison operation rule
     */
    public static CFRule12Record create(HSSFSheet sheet, byte comparisonOperation,
            String formulaText1, String formulaText2) {
        Ptg[] formula1 = parseFormula(formulaText1, sheet);
        Ptg[] formula2 = parseFormula(formulaText2, sheet);
        return new CFRule12Record(CONDITION_TYPE_CELL_VALUE_IS, comparisonOperation, 
                formula1, formula2, null);
    }
    
    
Creates a new comparison operation rule
Params:
sheet – the sheet
comparisonOperation – the comparison operation
formulaText1 – the first formula text
formulaText2 – the second formula text
formulaTextScale – the scale to apply for the comparison
Returns:
a new comparison operation rule/**
     * Creates a new comparison operation rule
     * 
     * @param sheet the sheet
     * @param comparisonOperation the comparison operation
     * @param formulaText1 the first formula text
     * @param formulaText2 the second formula text
     * @param formulaTextScale the scale to apply for the comparison
     * 
     * @return a new comparison operation rule
     */
    public static CFRule12Record create(HSSFSheet sheet, byte comparisonOperation,
            String formulaText1, String formulaText2, String formulaTextScale) {
        Ptg[] formula1 = parseFormula(formulaText1, sheet);
        Ptg[] formula2 = parseFormula(formulaText2, sheet);
        Ptg[] formula3 = parseFormula(formulaTextScale, sheet);
        return new CFRule12Record(CONDITION_TYPE_CELL_VALUE_IS, comparisonOperation, 
                formula1, formula2, formula3);
    }
    
    
Creates a new Data Bar formatting
Params:
sheet – the sheet
color – the data bar color
Returns:
a new Data Bar formatting/**
     * Creates a new Data Bar formatting
     * 
     * @param sheet the sheet
     * @param color the data bar color
     * 
     * @return a new Data Bar formatting
     */
    public static CFRule12Record create(HSSFSheet sheet, ExtendedColor color) {
        CFRule12Record r = new CFRule12Record(CONDITION_TYPE_DATA_BAR, 
                                              ComparisonOperator.NO_COMPARISON);
        DataBarFormatting dbf = r.createDataBarFormatting();
        dbf.setColor(color);
        dbf.setPercentMin((byte)0);
        dbf.setPercentMax((byte)100);
        
        DataBarThreshold min = new DataBarThreshold();
        min.setType(RangeType.MIN.id);
        dbf.setThresholdMin(min);
        
        DataBarThreshold max = new DataBarThreshold();
        max.setType(RangeType.MAX.id);
        dbf.setThresholdMax(max);
        
        return r;
    }
    
    
Creates a new Icon Set / Multi-State formatting
Params:
sheet – the sheet
iconSet – the icon set
Returns:
a new Icon Set / Multi-State formatting/**
     * Creates a new Icon Set / Multi-State formatting
     * 
     * @param sheet the sheet
     * @param iconSet the icon set
     * 
     * @return a new Icon Set / Multi-State formatting
     */
    public static CFRule12Record create(HSSFSheet sheet, IconSet iconSet) {
        Threshold[] ts = new Threshold[iconSet.num];
        for (int i=0; i<ts.length; i++) {
            ts[i] = new IconMultiStateThreshold();
        }
        
        CFRule12Record r = new CFRule12Record(CONDITION_TYPE_ICON_SET, 
                                              ComparisonOperator.NO_COMPARISON);
        IconMultiStateFormatting imf = r.createMultiStateFormatting();
        imf.setIconSet(iconSet);
        imf.setThresholds(ts);
        return r;
    }
    
    
Creates a new Color Scale / Color Gradient formatting
Params:
sheet – the sheet
Returns:
a new Color Scale / Color Gradient formatting/**
     * Creates a new Color Scale / Color Gradient formatting
     * 
     * @param sheet the sheet
     * 
     * @return a new Color Scale / Color Gradient formatting
     */
    public static CFRule12Record createColorScale(HSSFSheet sheet) {
        int numPoints = 3;
        ExtendedColor[] colors = new ExtendedColor[numPoints];
        ColorGradientThreshold[] ts = new ColorGradientThreshold[numPoints];
        for (int i=0; i<ts.length; i++) {
            ts[i] = new ColorGradientThreshold();
            colors[i] = new ExtendedColor();
        }
        
        CFRule12Record r = new CFRule12Record(CONDITION_TYPE_COLOR_SCALE, 
                                              ComparisonOperator.NO_COMPARISON);
        ColorGradientFormatting cgf = r.createColorGradientFormatting();
        cgf.setNumControlPoints(numPoints);
        cgf.setThresholds(ts);
        cgf.setColors(colors);
        return r;
    }

    public CFRule12Record(RecordInputStream in) {
        futureHeader = new FtrHeader(in);
        setConditionType(in.readByte());
        setComparisonOperation(in.readByte());
        int field_3_formula1_len = in.readUShort();
        int field_4_formula2_len = in.readUShort();
        
        ext_formatting_length = in.readInt();
        ext_formatting_data = new byte[0];
        if (ext_formatting_length == 0) {
            // 2 bytes reserved
            in.readUShort();
        } else {
            int len = readFormatOptions(in);
            if (len < ext_formatting_length) {
                ext_formatting_data = IOUtils.safelyAllocate(ext_formatting_length-len, MAX_RECORD_LENGTH);
                in.readFully(ext_formatting_data);
            }
        }
        
        setFormula1(Formula.read(field_3_formula1_len, in));
        setFormula2(Formula.read(field_4_formula2_len, in));
        
        int formula_scale_len = in.readUShort();
        formula_scale = Formula.read(formula_scale_len, in);
        
        ext_opts = in.readByte();
        priority = in.readUShort();
        template_type = in.readUShort();
        template_param_length = in.readByte();
        if (template_param_length == 0 || template_param_length == 16) {
            template_params = IOUtils.safelyAllocate(template_param_length, MAX_RECORD_LENGTH);
            in.readFully(template_params);
        } else {
            logger.log(POILogger.WARN, "CF Rule v12 template params length should be 0 or 16, found " + template_param_length);
            in.readRemainder();
        }
        
        byte type = getConditionType();
        if (type == CONDITION_TYPE_COLOR_SCALE) {
            color_gradient = new ColorGradientFormatting(in);
        } else if (type == CONDITION_TYPE_DATA_BAR) {
            data_bar = new DataBarFormatting(in);
        } else if (type == CONDITION_TYPE_FILTER) {
            filter_data = in.readRemainder();
        } else if (type == CONDITION_TYPE_ICON_SET) {
            multistate = new IconMultiStateFormatting(in);
        }
    }
    
    public boolean containsDataBarBlock() {
        return (data_bar != null);
    }
    public DataBarFormatting getDataBarFormatting() {
        return data_bar;
    }
    public DataBarFormatting createDataBarFormatting() {
        if (data_bar != null) return data_bar;
        
        // Convert, setup and return
        setConditionType(CONDITION_TYPE_DATA_BAR);
        data_bar = new DataBarFormatting();
        return data_bar;
    }

    public boolean containsMultiStateBlock() {
        return (multistate != null);
    }
    public IconMultiStateFormatting getMultiStateFormatting() {
        return multistate;
    }
    public IconMultiStateFormatting createMultiStateFormatting() {
        if (multistate != null) return multistate;
        
        // Convert, setup and return
        setConditionType(CONDITION_TYPE_ICON_SET);
        multistate = new IconMultiStateFormatting();
        return multistate;
    }

    public boolean containsColorGradientBlock() {
        return (color_gradient != null);
    }
    public ColorGradientFormatting getColorGradientFormatting() {
        return color_gradient;
    }
    public ColorGradientFormatting createColorGradientFormatting() {
        if (color_gradient != null) return color_gradient;
        
        // Convert, setup and return
        setConditionType(CONDITION_TYPE_COLOR_SCALE);
        color_gradient = new ColorGradientFormatting();
        return color_gradient;
    }

    
get the stack of the scale expression as a list
Returns:
list of tokens (casts stack to a list and returns it!)
this method can return null is we are unable to create Ptgs from
 existing excel file
callers should check for null!/**
     * get the stack of the scale expression as a list
     *
     * @return list of tokens (casts stack to a list and returns it!)
     * this method can return null is we are unable to create Ptgs from
     *	 existing excel file
     * callers should check for null!
     */
    public Ptg[] getParsedExpressionScale() {
        return formula_scale.getTokens();
    }
    public void setParsedExpressionScale(Ptg[] ptgs) {
        formula_scale = Formula.create(ptgs);
    }

    public int getPriority() {
        return priority;
    }
    public void setPriority(int priority) {
        this.priority = priority;
    }

    public short getSid() {
        return sid;
    }

    
called by the class that is responsible for writing this sucker.
Subclasses should implement this so that their data is passed back in a
byte array.
Params:
out – the stream to write to/**
     * called by the class that is responsible for writing this sucker.
     * Subclasses should implement this so that their data is passed back in a
     * byte array.
     *
     * @param out the stream to write to
     */
    public void serialize(LittleEndianOutput out) {
        futureHeader.serialize(out);
        
        int formula1Len=getFormulaSize(getFormula1());
        int formula2Len=getFormulaSize(getFormula2());

        out.writeByte(getConditionType());
        out.writeByte(getComparisonOperation());
        out.writeShort(formula1Len);
        out.writeShort(formula2Len);
        
        // TODO Update ext_formatting_length
        if (ext_formatting_length == 0) {
            out.writeInt(0);
            out.writeShort(0);
        } else {
            out.writeInt(ext_formatting_length);
            serializeFormattingBlock(out);
            out.write(ext_formatting_data);
        }
        
        getFormula1().serializeTokens(out);
        getFormula2().serializeTokens(out);
        out.writeShort(getFormulaSize(formula_scale));
        formula_scale.serializeTokens(out);
        
        out.writeByte(ext_opts);
        out.writeShort(priority);
        out.writeShort(template_type);
        out.writeByte(template_param_length);
        out.write(template_params);
        
        byte type = getConditionType();
        if (type == CONDITION_TYPE_COLOR_SCALE) {
            color_gradient.serialize(out);
        } else if (type == CONDITION_TYPE_DATA_BAR) {
            data_bar.serialize(out);
        } else if (type == CONDITION_TYPE_FILTER) {
            out.write(filter_data);
        } else if (type == CONDITION_TYPE_ICON_SET) {
            multistate.serialize(out);
        }
    }

    protected int getDataSize() {
        int len = FtrHeader.getDataSize() + 6;
        if (ext_formatting_length == 0) {
            len += 6;
        } else {
            len += 4 + getFormattingBlockSize() + ext_formatting_data.length;
        }
        len += getFormulaSize(getFormula1());
        len += getFormulaSize(getFormula2());
        len += 2 + getFormulaSize(formula_scale);
        len += 6 + template_params.length;
        
        byte type = getConditionType();
        if (type == CONDITION_TYPE_COLOR_SCALE) {
            len += color_gradient.getDataLength();
        } else if (type == CONDITION_TYPE_DATA_BAR) {
            len += data_bar.getDataLength();
        } else if (type == CONDITION_TYPE_FILTER) {
            len += filter_data.length;
        } else if (type == CONDITION_TYPE_ICON_SET) {
            len += multistate.getDataLength();
        }
        return len;
    }

    public String toString() {
        StringBuilder buffer = new StringBuilder();
        buffer.append("[CFRULE12]\n");
        buffer.append("    .condition_type=").append(getConditionType()).append("\n");
        buffer.append("    .dxfn12_length =0x").append(Integer.toHexString(ext_formatting_length)).append("\n");
        buffer.append("    .option_flags  =0x").append(Integer.toHexString(getOptions())).append("\n");
        if (containsFontFormattingBlock()) {
            buffer.append(_fontFormatting).append("\n");
        }
        if (containsBorderFormattingBlock()) {
            buffer.append(_borderFormatting).append("\n");
        }
        if (containsPatternFormattingBlock()) {
            buffer.append(_patternFormatting).append("\n");
        }
        buffer.append("    .dxfn12_ext=").append(HexDump.toHex(ext_formatting_data)).append("\n");
        buffer.append("    .formula_1 =").append(Arrays.toString(getFormula1().getTokens())).append("\n");
        buffer.append("    .formula_2 =").append(Arrays.toString(getFormula2().getTokens())).append("\n");
        buffer.append("    .formula_S =").append(Arrays.toString(formula_scale.getTokens())).append("\n");
        buffer.append("    .ext_opts  =").append(ext_opts).append("\n");
        buffer.append("    .priority  =").append(priority).append("\n");
        buffer.append("    .template_type  =").append(template_type).append("\n");
        buffer.append("    .template_params=").append(HexDump.toHex(template_params)).append("\n");
        buffer.append("    .filter_data    =").append(HexDump.toHex(filter_data)).append("\n");
        if (color_gradient != null) {
            buffer.append(color_gradient);
        }
        if (multistate != null) {
            buffer.append(multistate);
        }
        if (data_bar != null) {
            buffer.append(data_bar);
        }
        buffer.append("[/CFRULE12]\n");
        return buffer.toString();
    }

    @Override
    public CFRule12Record clone() {
        CFRule12Record rec = new CFRule12Record(getConditionType(), getComparisonOperation());
        rec.futureHeader.setAssociatedRange(futureHeader.getAssociatedRange().copy());
        
        super.copyTo(rec);

        // use min() to gracefully handle cases where the length-property and the array-length do not match
        // we saw some such files in circulation
        rec.ext_formatting_length = Math.min(ext_formatting_length, ext_formatting_data.length);
        rec.ext_formatting_data = IOUtils.safelyAllocate(ext_formatting_length, MAX_RECORD_LENGTH);
        System.arraycopy(ext_formatting_data, 0, rec.ext_formatting_data, 0, rec.ext_formatting_length);
        
        rec.formula_scale = formula_scale.copy();
        
        rec.ext_opts = ext_opts;
        rec.priority = priority;
        rec.template_type = template_type;
        rec.template_param_length = template_param_length;
        rec.template_params = IOUtils.safelyAllocate(template_param_length, MAX_RECORD_LENGTH);
        System.arraycopy(template_params, 0, rec.template_params, 0, template_param_length);

        if (color_gradient != null) {
            rec.color_gradient = (ColorGradientFormatting)color_gradient.clone();
        }
        if (multistate != null) {
            rec.multistate = (IconMultiStateFormatting)multistate.clone();
        }
        if (data_bar != null) {
            rec.data_bar = (DataBarFormatting)data_bar.clone();
        }
        if (filter_data != null) {
            rec.filter_data = IOUtils.safelyAllocate(filter_data.length, MAX_RECORD_LENGTH);
            System.arraycopy(filter_data, 0, rec.filter_data, 0, filter_data.length);
        }
        
        return rec;
    }
    
    public short getFutureRecordType() {
        return futureHeader.getRecordType();
    }
    public FtrHeader getFutureHeader() {
        return futureHeader;
    }
    public CellRangeAddress getAssociatedRange() {
        return futureHeader.getAssociatedRange();
    }
}