/*
Copyright (c) 2025 WuJingrun（吴京润）

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 f_regex

import std.unittest.*
import std.unittest.testmacro.*
import std.time.DateTime
import std.sync.{AtomicInt64, SyncCounter}

@Test
public class Regex_test {
    @TestCase
    public func test(): Unit {
        var reg = Regex.builder().start.lsquare.notIn.whitespace.digit.rsquare.oneOrMore.end.build()
        println(reg.string())
        @Assert(reg.string(), #"^[^ \d]+$"#)
        reg = Regex.builder().start.lparan.notDigit.or.notBlank.or.notAlpha.rparan.zeroOrMore.end.build()
        println(reg.string())
        @Assert(reg.string(), #"^(\D|\S|[^a-zA-Z])*$"#)
    }
    @TestCase
    public func test2(): Unit {
        var current = DateTime.now()
        let reg1 = #"^\d+$"#.regex(solid: true)
        println(Duration.since(current))
        current = DateTime.now()
        let reg2 = #"^\d+$"#.regex(solid: true)
        println(Duration.since(current))
        current = DateTime.now()
        let reg3 = Regex(#"^\d+$"#)
        println(Duration.since(current))
    }
    @TestCase
    public func test3(): Unit {
        let consumed = AtomicInt64(0)
        let latch = SyncCounter(20)
        var i = 0
        while (i < 20) {
            spawn {
                var reg1 = Regex("^$")
                var j = 0
                while (j < 1000) {
                    var current = DateTime.now()
                    reg1 = #"^\d+$"#.regex()
                    consumed.fetchAdd(Duration.since(current).toNanoseconds())
                    j++
                }
                println(reg1.string())
                latch.dec()
            }
            i++
        }
        latch.waitUntilZero()
        println(consumed.load())
        consumed.store(0)
        let latch2 = SyncCounter(20)
        i = 0
        while (i < 20) {
            spawn {
                var reg1 = Regex("^$")
                var j = 0
                while (j < 1000) {
                    var current = DateTime.now()
                    reg1 = Regex(#"^\d+$"#)
                    consumed.fetchAdd(Duration.since(current).toNanoseconds())
                    j++
                }
                println(reg1.string())
                latch2.dec()
            }
            i++
        }
        latch2.waitUntilZero()
        println(consumed.load())
    }
}