/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.inputmethod.keyboard.layout;

import com.android.inputmethod.keyboard.layout.customizer.LayoutCustomizer;
import com.android.inputmethod.keyboard.layout.expected.ExpectedKey;
import com.android.inputmethod.keyboard.layout.expected.ExpectedKeyboardBuilder;
import com.android.inputmethod.latin.common.Constants;

import java.util.Locale;

/**
 * The Telugu keyboard.
 */
public final class Telugu extends LayoutBase {
    private static final String LAYOUT_NAME = "telugu";

    public Telugu(final Locale locale) {
        super(new TeluguCustomizer(locale), Symbols.class, SymbolsShifted.class);
    }

    @Override
    public String getName() { return LAYOUT_NAME; }

    private static class TeluguCustomizer extends LayoutCustomizer {
        TeluguCustomizer(final Locale locale) { super(locale); }

        @Override
        public ExpectedKey getAlphabetKey() { return TELUGU_ALPHABET_KEY; }

        @Override
        public ExpectedKey getCurrencyKey() { return CURRENCY_RUPEE; }

        @Override
        public ExpectedKey[] getOtherCurrencyKeys() {
            return SymbolsShifted.CURRENCIES_OTHER_GENERIC;
        }

        @Override
        public ExpectedKey[] getLeftShiftKeys(final boolean isPhone) {
            return EMPTY_KEYS;
        }

        @Override
        public ExpectedKey[] getRightShiftKeys(final boolean isPhone) {
            return isPhone ? EMPTY_KEYS : EXCLAMATION_AND_QUESTION_MARKS;
        }

        @Override
        public ExpectedKey[] getSpaceKeys(final boolean isPhone) {
            return joinKeys(LANGUAGE_SWITCH_KEY, SPACE_KEY, key(ZWNJ_KEY, ZWJ_KEY));
        }

        // U+0C05: "అ" TELUGU LETTER A
        // U+0C06: "ఆ" TELUGU LETTER AA
        // U+0C07: "ఇ" TELUGU LETTER I
        private static final ExpectedKey TELUGU_ALPHABET_KEY = key(
                "\u0C05\u0C06\u0C07", Constants.CODE_SWITCH_ALPHA_SYMBOL);

        // U+20B9: "₹" INDIAN RUPEE SIGN
        private static final ExpectedKey CURRENCY_RUPEE = key("\u20B9",
                Symbols.CURRENCY_GENERIC_MORE_KEYS);
    }

    @Override
    ExpectedKey[][] getCommonAlphabetLayout(boolean isPhone) { return ALPHABET_COMMON; }

    @Override
    ExpectedKey[][] getCommonAlphabetShiftLayout(boolean isPhone, final int elementId) {
        return null;
    }

    private static final ExpectedKey[][] ALPHABET_COMMON = new ExpectedKeyboardBuilder()
            .setKeysOfRow(1,
                    // U+0C4C: "ౌ" TELUGU VOWEL SIGN AU
                    // U+0C14: "ఔ" TELUGU LETTER AU
                    key("\u0C4C", joinMoreKeys("\u0C14", "1")),
                    // U+0C48: "ై" TELUGU VOWEL SIGN AI
                    // U+0C10: "ఐ" TELUGU LETTER AI
                    key("\u0C48", joinMoreKeys("\u0C10", "2")),
                    // U+0C3E: "ా" TELUGU VOWEL SIGN AA
                    // U+0C06: "ఆ" TELUGU LETTER AA
                    key("\u0C3E", joinMoreKeys("\u0C06", "3")),
                    // U+0C40: "ీ" TELUGU VOWEL SIGN II
                    // U+0C08: "ఈ" TELUGU LETTER II
                    key("\u0C40", joinMoreKeys("\u0C08", "4")),
                    // U+0C42: "ూ" TELUGU VOWEL SIGN UU
                    // U+0C0A: "ఊ" TELUGU LETTER UU
                    key("\u0C42", joinMoreKeys("\u0C0A", "5")),
                    // U+0C2C: "బ" TELUGU LETTER BA
                    // U+0C2D: "భ" TELUGU LETTER BHA
                    key("\u0C2C", joinMoreKeys("\u0C2D", "6")),
                    // U+0C39: "హ" TELUGU LETTER HA
                    // U+0C03: "ః" TELUGU SIGN VISARGA
                    key("\u0C39", joinMoreKeys("\u0C03", "7")),
                    // U+0C17: "గ" TELUGU LETTER GA
                    // U+0C18: "ఘ" TELUGU LETTER GHA
                    key("\u0C17", joinMoreKeys("\u0C18", "8")),
                    // U+0C26: "ద" TELUGU LETTER DA
                    // U+0C27: "ధ" TELUGU LETTER DHA
                    key("\u0C26", joinMoreKeys("\u0C27", "9")),
                    // U+0C1C: "జ" TELUGU LETTER JA
                    // U+0C1D: "ఝ" TELUGU LETTER JHA
                    key("\u0C1C", joinMoreKeys("\u0C1D", "0")),
                    // U+0C21: "డ" TELUGU LETTER DDA
                    // U+0C22: "ఢ" TELUGU LETTER DDHA
                    key("\u0C21", moreKey("\u0C22")))
            .setKeysOfRow(2,
                    // U+0C4B: "ో" TELUGU VOWEL SIGN OO
                    // U+0C13: "ఓ" TELUGU LETTER OO
                    key("\u0C4B", moreKey("\u0C13")),
                    // U+0C47: "ే" TELUGU VOWEL SIGN EE
                    // U+0C0F: "ఏ" TELUGU LETTER EE
                    key("\u0C47", moreKey("\u0C0F")),
                    // U+0C4D: "్" TELUGU SIGN VIRAMA
                    // U+0C05: "అ" TELUGU LETTER A
                    key("\u0C4D", moreKey("\u0C05")),
                    // U+0C3F: "ి" TELUGU VOWEL SIGN I
                    // U+0C07: "ఇ" TELUGU LETTER I
                    key("\u0C3F", moreKey("\u0C07")),
                    // U+0C41: "ు" TELUGU VOWEL SIGN U
                    // U+0C09: "ఉ" TELUGU LETTER U
                    key("\u0C41", moreKey("\u0C09")),
                    // U+0C2A: "ప" TELUGU LETTER PA
                    // U+0C2B: "ఫ" TELUGU LETTER PHA
                    key("\u0C2A", moreKey("\u0C2B")),
                    // U+0C30: "ర" TELUGU LETTER RA
                    // U+0C31: "ఱ" TELUGU LETTER RRA
                    // U+0C4D/U+0C30: "్ర" TELUGU SIGN VIRAMA/TELUGU LETTER RA
                    key("\u0C30", joinMoreKeys("\u0C31", "\u0C4D\u0C30")),
                    // U+0C15: "క" TELUGU LETTER KA
                    // U+0C16: "ఖ" TELUGU LETTER KHA
                    key("\u0C15", moreKey("\u0C16")),
                    // U+0C24: "త" TELUGU LETTER TA
                    // U+0C25: "థ" TELUGU LETTER THA
                    key("\u0C24", moreKey("\u0C25")),
                    // U+0C1A: "చ" TELUGU LETTER CA
                    // U+0C1B: "ఛ" TELUGU LETTER CHA
                    key("\u0C1A", moreKey("\u0C1B")),
                    // U+0C1F: "ట" TELUGU LETTER TTA
                    // U+0C20: "ఠ" TELUGU LETTER TTHA
                    key("\u0C1F", moreKey("\u0C20")))
            .setKeysOfRow(3,
                    // U+0C4A: "ొ" TELUGU VOWEL SIGN O
                    // U+0C12: "ఒ" TELUGU LETTER O
                    key("\u0C4A", moreKey("\u0C12")),
                    // U+0C46: "ె" TELUGU VOWEL SIGN E
                    // U+0C0E: "ఎ" TELUGU LETTER E
                    key("\u0C46", moreKey("\u0C0E")),
                    // U+0C2E: "మ" TELUGU LETTER MA
                    // U+0C02: "ం" TELUGU SIGN ANUSVARA
                    // U+0C01: "ఁ" TELUGU SIGN CANDRABINDU
                    key("\u0C2E", joinMoreKeys("\u0C02", "\u0C01")),
                    // U+0C28: "న" TELUGU LETTER NA
                    // U+0C23: "ణ" TELUGU LETTER NNA
                    // U+0C19: "ఙ" TELUGU LETTER NGA
                    // U+0C1E: "ఞ" TELUGU LETTER NYA
                    key("\u0C28", joinMoreKeys("\u0C23", "\u0C19", "\u0C1E")),
                    // U+0C35: "వ" TELUGU LETTER VA
                    "\u0C35",
                    // U+0C32: "ల" TELUGU LETTER LA
                    // U+0C33: "ళ" TELUGU LETTER LLA
                    key("\u0C32", moreKey("\u0C33")),
                    // U+0C38: "స" TELUGU LETTER SA
                    // U+0C36: "శ" TELUGU LETTER SHA
                    key("\u0C38", moreKey("\u0C36")),
                    // U+0C0B: "ఋ" TELUGU LETTER VOCALIC R
                    // U+0C43: "ృ" TELUGU VOWEL SIGN VOCALIC R
                    key("\u0C0B", moreKey("\u0C43")),
                    // U+0C37: "ష" TELUGU LETTER SSA
                    // U+0C15/U+0C4D/U+0C37:
                    //     "క్ష" TELUGU LETTER KA/TELUGU SIGN VIRAMA/TELUGU LETTER SSA
                    key("\u0C37", moreKey("\u0C15\u0C4D\u0C37")),
                    // U+0C2F: "య" TELUGU LETTER YA
                    // U+0C1C/U+0C4D/U+0C1E:
                    //     "జ్ఞ" TELUGU LETTER JA/TELUGU SIGN VIRAMA/TELUGU LETTER NYA
                    key("\u0C2F", moreKey("\u0C1C\u0C4D\u0C1E")))
            .build();
}