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SQL DSL APIs for SQLite on Kotlin Multiplatform
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/*
 * Copyright (C) 2022 Ctrip.com.
 *
 * 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.ctrip.sqllin.dsl.sql.clause

/**
 * Abstract clause that could link conditions, include 'WHERE' and 'HAVING'
 * @author yaqiao
 */

public sealed class ConditionClause(private val selectCondition: SelectCondition) : SelectClause {

    internal abstract val clauseName: String

    final override val clauseStr: String
        get() = " $clauseName ${selectCondition.conditionSQL}"
}

// Less than, <
public infix fun ClauseNumber.LT(number: Number): SelectCondition = lt(number)

// Less than, append to ClauseNumber
public infix fun ClauseNumber.LT(clauseNumber: ClauseNumber): SelectCondition = lt(clauseNumber)

// Less than or equal to, <=
public infix fun ClauseNumber.LTE(number: Number): SelectCondition = lte(number)

// Less than or equal to, append to ClauseNumber
public infix fun ClauseNumber.LTE(clauseNumber: ClauseNumber): SelectCondition = lte(clauseNumber)

// Equals, ==
public infix fun ClauseNumber.EQ(number: Number?): SelectCondition = eq(number)

// Equals, append to ClauseNumber
public infix fun ClauseNumber.EQ(clauseNumber: ClauseNumber): SelectCondition = eq(clauseNumber)

// Not equal to, !=
public infix fun ClauseNumber.NEQ(number: Number?): SelectCondition = neq(number)

// Not equal to, append to ClauseNumber
public infix fun ClauseNumber.NEQ(clauseNumber: ClauseNumber): SelectCondition = neq(clauseNumber)

// Greater than, >
public infix fun ClauseNumber.GT(number: Number): SelectCondition = gt(number)

// Greater than, append to ClauseNumber
public infix fun ClauseNumber.GT(clauseNumber: ClauseNumber): SelectCondition = gt(clauseNumber)

// Greater than or equal to, >=
public infix fun ClauseNumber.GTE(number: Number): SelectCondition = gte(number)

// Greater than or equal to, append to ClauseNumber
public infix fun ClauseNumber.GTE(clauseNumber: ClauseNumber): SelectCondition = gte(clauseNumber)

// If the 'number' in the 'numbers'
public infix fun ClauseNumber.IN(numbers: Iterable): SelectCondition = inIterable(numbers)

// If the 'number' between the 'range'
public infix fun ClauseNumber.BETWEEN(range: LongRange): SelectCondition = between(range)

// Equals, ==
public infix fun ClauseString.EQ(str: String?): SelectCondition = eq(str)

// Equals, append another ClauseString
public infix fun ClauseString.EQ(clauseString: ClauseString): SelectCondition = eq(clauseString)

// Not equals to, !=
public infix fun ClauseString.NEQ(str: String?): SelectCondition = neq(str)

// Not equals to, append another ClauseString
public infix fun ClauseString.NEQ(clauseString: ClauseString): SelectCondition = neq(clauseString)

// SQL LIKE operator
public infix fun ClauseString.LIKE(regex: String): SelectCondition = like(regex)

// SQL GLOB operator
public infix fun ClauseString.GLOB(regex: String): SelectCondition = glob(regex)

// Condition 'OR' operator
public infix fun SelectCondition.OR(prediction: SelectCondition): SelectCondition = or(prediction)

// Condition 'AND' operator
public infix fun SelectCondition.AND(prediction: SelectCondition): SelectCondition = and(prediction)

public infix fun ClauseBoolean.IS(bool: Boolean): SelectCondition = _is(bool)