session-android/libsession/src/main/java/org/session/libsession/messaging/utilities/Data.java

package org.session.libsession.messaging.utilities;

import android.os.Parcelable;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import com.fasterxml.jackson.annotation.JsonProperty;

import org.session.libsession.utilities.ParcelableUtil;

import java.util.HashMap;
import java.util.Map;

public class Data {
    @JsonProperty private final Map<String, String>    strings;
    @JsonProperty private final Map<String, String[]>  stringArrays;
    @JsonProperty private final Map<String, Integer>   integers;
    @JsonProperty private final Map<String, int[]>     integerArrays;
    @JsonProperty private final Map<String, Long>      longs;
    @JsonProperty private final Map<String, long[]>    longArrays;
    @JsonProperty private final Map<String, Float>     floats;
    @JsonProperty private final Map<String, float[]>   floatArrays;
    @JsonProperty private final Map<String, Double>    doubles;
    @JsonProperty private final Map<String, double[]>  doubleArrays;
    @JsonProperty private final Map<String, Boolean>   booleans;
    @JsonProperty private final Map<String, boolean[]> booleanArrays;
    @JsonProperty private final Map<String, byte[]>    byteArrays;

    public static final Data EMPTY = new Data.Builder().build();

    public Data(
            @JsonProperty("strings")       @NonNull Map<String, String>    strings,
            @JsonProperty("stringArrays")  @NonNull Map<String, String[]>  stringArrays,
            @JsonProperty("integers")      @NonNull Map<String, Integer>   integers,
            @JsonProperty("integerArrays") @NonNull Map<String, int[]>     integerArrays,
            @JsonProperty("longs")         @NonNull Map<String, Long>      longs,
            @JsonProperty("longArrays")    @NonNull Map<String, long[]>    longArrays,
            @JsonProperty("floats")        @NonNull Map<String, Float>     floats,
            @JsonProperty("floatArrays")   @NonNull Map<String, float[]>   floatArrays,
            @JsonProperty("doubles")       @NonNull Map<String, Double>    doubles,
            @JsonProperty("doubleArrays")  @NonNull Map<String, double[]>  doubleArrays,
            @JsonProperty("booleans")      @NonNull Map<String, Boolean>   booleans,
            @JsonProperty("booleanArrays") @NonNull Map<String, boolean[]> booleanArrays,
            @JsonProperty("byteArrays")    @NonNull Map<String, byte[]>    byteArrays
    ) {
        this.strings       = strings;
        this.stringArrays  = stringArrays;
        this.integers      = integers;
        this.integerArrays = integerArrays;
        this.longs         = longs;
        this.longArrays    = longArrays;
        this.floats        = floats;
        this.floatArrays   = floatArrays;
        this.doubles       = doubles;
        this.doubleArrays  = doubleArrays;
        this.booleans      = booleans;
        this.booleanArrays = booleanArrays;
        this.byteArrays    = byteArrays;
    }

    public boolean hasString(@NonNull String key) {
        return strings.containsKey(key);
    }

    public String getString(@NonNull String key) {
        throwIfAbsent(strings, key);
        return strings.get(key);
    }

    public String getStringOrDefault(@NonNull String key, String defaultValue) {
        if (hasString(key)) return getString(key);
        else                return defaultValue;
    }



    public boolean hasStringArray(@NonNull String key) {
        return stringArrays.containsKey(key);
    }

    public String[] getStringArray(@NonNull String key) {
        throwIfAbsent(stringArrays, key);
        return stringArrays.get(key);
    }


    public boolean hasInt(@NonNull String key) {
        return integers.containsKey(key);
    }

    public int getInt(@NonNull String key) {
        throwIfAbsent(integers, key);
        return integers.get(key);
    }

    public int getIntOrDefault(@NonNull String key, int defaultValue) {
        if (hasInt(key)) return getInt(key);
        else             return defaultValue;
    }



    public boolean hasIntegerArray(@NonNull String key) {
        return integerArrays.containsKey(key);
    }

    public int[] getIntegerArray(@NonNull String key) {
        throwIfAbsent(integerArrays, key);
        return integerArrays.get(key);
    }



    public boolean hasLong(@NonNull String key) {
        return longs.containsKey(key);
    }

    public long getLong(@NonNull String key) {
        throwIfAbsent(longs, key);
        return longs.get(key);
    }

    public long getLongOrDefault(@NonNull String key, long defaultValue) {
        if (hasLong(key)) return getLong(key);
        else              return defaultValue;
    }



    public boolean hasLongArray(@NonNull String key) {
        return longArrays.containsKey(key);
    }

    public long[] getLongArray(@NonNull String key) {
        throwIfAbsent(longArrays, key);
        return longArrays.get(key);
    }



    public boolean hasFloat(@NonNull String key) {
        return floats.containsKey(key);
    }

    public float getFloat(@NonNull String key) {
        throwIfAbsent(floats, key);
        return floats.get(key);
    }

    public float getFloatOrDefault(@NonNull String key, float defaultValue) {
        if (hasFloat(key)) return getFloat(key);
        else               return defaultValue;
    }



    public boolean hasFloatArray(@NonNull String key) {
        return floatArrays.containsKey(key);
    }

    public float[] getFloatArray(@NonNull String key) {
        throwIfAbsent(floatArrays, key);
        return floatArrays.get(key);
    }



    public boolean hasDouble(@NonNull String key) {
        return doubles.containsKey(key);
    }

    public double getDouble(@NonNull String key) {
        throwIfAbsent(doubles, key);
        return doubles.get(key);
    }

    public double getDoubleOrDefault(@NonNull String key, double defaultValue) {
        if (hasDouble(key)) return getDouble(key);
        else                return defaultValue;
    }



    public boolean hasDoubleArray(@NonNull String key) {
        return floatArrays.containsKey(key);
    }

    public double[] getDoubleArray(@NonNull String key) {
        throwIfAbsent(doubleArrays, key);
        return doubleArrays.get(key);
    }



    public boolean hasBoolean(@NonNull String key) {
        return booleans.containsKey(key);
    }

    public boolean getBoolean(@NonNull String key) {
        throwIfAbsent(booleans, key);
        return booleans.get(key);
    }

    public boolean getBooleanOrDefault(@NonNull String key, boolean defaultValue) {
        if (hasBoolean(key)) return getBoolean(key);
        else                 return defaultValue;
    }



    public boolean hasBooleanArray(@NonNull String key) {
        return booleanArrays.containsKey(key);
    }

    public boolean[] getBooleanArray(@NonNull String key) {
        throwIfAbsent(booleanArrays, key);
        return booleanArrays.get(key);
    }



    public boolean hasByteArray(@NonNull String key) {
        return byteArrays.containsKey(key);
    }

    public byte[] getByteArray(@NonNull String key) {
        throwIfAbsent(byteArrays, key);
        return byteArrays.get(key);
    }



    public boolean hasParcelable(@NonNull String key) {
        return byteArrays.containsKey(key);
    }

    public <T extends Parcelable> T getParcelable(@NonNull String key, @NonNull Parcelable.Creator<T> creator) {
        throwIfAbsent(byteArrays, key);
        byte[] bytes = byteArrays.get(key);
        return ParcelableUtil.unmarshall(bytes, creator);
    }



    private void throwIfAbsent(@NonNull Map map, @NonNull String key) {
        if (!map.containsKey(key)) {
            throw new IllegalStateException("Tried to retrieve a value with key '" + key + "', but it wasn't present.");
        }
    }


    public static class Builder {
        private final Map<String, String>    strings       = new HashMap<>();
        private final Map<String, String[]>  stringArrays  = new HashMap<>();
        private final Map<String, Integer>   integers      = new HashMap<>();
        private final Map<String, int[]>     integerArrays = new HashMap<>();
        private final Map<String, Long>      longs         = new HashMap<>();
        private final Map<String, long[]>    longArrays    = new HashMap<>();
        private final Map<String, Float>     floats        = new HashMap<>();
        private final Map<String, float[]>   floatArrays   = new HashMap<>();
        private final Map<String, Double>    doubles       = new HashMap<>();
        private final Map<String, double[]>  doubleArrays  = new HashMap<>();
        private final Map<String, Boolean>   booleans      = new HashMap<>();
        private final Map<String, boolean[]> booleanArrays = new HashMap<>();
        private final Map<String, byte[]>    byteArrays    = new HashMap<>();

        public Builder putString(@NonNull String key, @Nullable String value) {
            strings.put(key, value);
            return this;
        }

        public Builder putStringArray(@NonNull String key, @NonNull String[] value) {
            stringArrays.put(key, value);
            return this;
        }

        public Builder putInt(@NonNull String key, int value) {
            integers.put(key, value);
            return this;
        }

        public Builder putIntArray(@NonNull String key, @NonNull int[] value) {
            integerArrays.put(key, value);
            return this;
        }

        public Builder putLong(@NonNull String key, long value) {
            longs.put(key, value);
            return this;
        }

        public Builder putLongArray(@NonNull String key, @NonNull long[] value) {
            longArrays.put(key, value);
            return this;
        }

        public Builder putFloat(@NonNull String key, float value) {
            floats.put(key, value);
            return this;
        }

        public Builder putFloatArray(@NonNull String key, @NonNull float[] value) {
            floatArrays.put(key, value);
            return this;
        }

        public Builder putDouble(@NonNull String key, double value) {
            doubles.put(key, value);
            return this;
        }

        public Builder putDoubleArray(@NonNull String key, @NonNull double[] value) {
            doubleArrays.put(key, value);
            return this;
        }

        public Builder putBoolean(@NonNull String key, boolean value) {
            booleans.put(key, value);
            return this;
        }

        public Builder putBooleanArray(@NonNull String key, @NonNull boolean[] value) {
            booleanArrays.put(key, value);
            return this;
        }

        public Builder putByteArray(@NonNull String key, @NonNull byte[] value) {
            byteArrays.put(key, value);
            return this;
        }

        public Builder putParcelable(@NonNull String key, @NonNull Parcelable value) {
            byte[] bytes = ParcelableUtil.marshall(value);
            byteArrays.put(key, bytes);
            return this;
        }

        public Data build() {
            return new Data(
                strings,
                stringArrays,
                integers,
                integerArrays,
                longs,
                longArrays,
                floats,
                floatArrays,
                doubles,
                doubleArrays,
                booleans,
                booleanArrays,
                byteArrays
            );
        }
    }

    public interface Serializer {
        @NonNull String serialize(@NonNull Data data);
        @NonNull Data deserialize(@NonNull String serialized);
    }
}