import string:*
import io:*
import os:*

fun error(message: *char) {
    println("ERROR:")
    println(message)
}

fun main(argc: int, argv: **char): int {
    var kraken_path = string("../kraken")
    var all_results = string()
    var num_passed = 0
    var all_results_interp = string()
    var num_passed_interp = 0
    var name_length = 0
    // first iterate and get the length of the longest line
    for (var i = 1; i < argc; i++;) {
        var name = string(argv[i])
        if (name.length() > name_length)
            name_length = name.length()
    }
    var pad_with_spaces = fun(name: string): string {
        while (name.length() < name_length) name += " "
        return name
    }
    for (var i = 1; i < argc; i++;) {
        var test_name = string(argv[i])
        println(string("Doing test for ") + test_name)
        var results_file_name = test_name + ".results"
        var expected_results_file_name = test_name + ".expected_results"
        if (system(kraken_path + " " + test_name + ".krak > " + results_file_name)) error("could not compile")
        if (system(string("./") + test_name + " >> " + results_file_name)) error("could not run")
        if (file_exists(results_file_name) && file_exists(expected_results_file_name) && read_file(results_file_name) == read_file(expected_results_file_name)) {
            println(test_name + "\tPASSED!")
            all_results += pad_with_spaces(test_name) + "\tPASSED!\n"
            num_passed++
            system(string("rm ./") + results_file_name)
        } else {
            println(test_name + "\tFAILED!")
            all_results += pad_with_spaces(test_name) + "\tFAILED!!!\n"
        }
        results_file_name += ".interp"
        if (system(kraken_path + " -i " + test_name + ".krak > " + results_file_name)) error("could not interpret")
        if (file_exists(results_file_name) && file_exists(expected_results_file_name) && read_file(results_file_name) == read_file(expected_results_file_name)) {
            println(test_name + "interp\tPASSED!")
            all_results_interp += pad_with_spaces(test_name+"_interp") + "\tPASSED!\n"
            num_passed_interp++
            system(string("rm ./") + results_file_name)
        } else {
            println(test_name + "_interp\tFAILED!")
            all_results_interp += pad_with_spaces(test_name + "_interp") + "\tFAILED!!!\n"
        }
        system(string("rm ./") + test_name + ".krak.*")
        system(string("rm ./") + test_name)
    }
    println(string("\n\nTEST RESULTS: ") + num_passed + "/" + (argc-1))
    println(all_results)
    println(string("TEST RESULTS: ") + num_passed + "/" + (argc-1))
    println(string("\n\nTEST RESULTS INERPRETED: ") + num_passed_interp + "/" + (argc-1))
    println(all_results_interp)
    println(string("TEST RESULTS: ") + num_passed_interp + "/" + (argc-1))
    return 0
}