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#include <dchat/MessageComposer.hpp>
#include <vector>
#include <stdio.h>
#include <string.h>

#define REQUIRE(expr) do { if(!(expr)) { fprintf(stderr, "%s:%d: Assert failed: %s\n", __FILE__, __LINE__, #expr); exit(EXIT_FAILURE); } } while(0)
static void requireEqualValues(int a, int b, const char *file, int line)
{
    if(a != b)
    {
        fprintf(stderr, "%s:%d: Assert failed: %d == %d\n", file, line, a, b);
        exit(EXIT_FAILURE);
    }
}
#define REQUIRE_EQUAL(a, b) do { requireEqualValues((a), (b), __FILE__, __LINE__); } while(0)

int main(int argc, char **argv)
{
    std::vector<dchat::MessagePart> expect = 
    {
        dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 0, 4 } },
        dchat::MessagePart { dchat::MessagePart::Type::EMOJI, dchat::Range{ 12, 16 } },
        dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 17, 21 } }
    };

    std::vector<const char*> expectText = 
    {
        "abc ",
        "cool",
        " def"
    };

    int index = 0;
    const char *str = "abc [emoji](cool) def";
    dchat::usize strSize = strlen(str);

    auto compareFunc = [&str, &index, &expect, &expectText](dchat::MessagePart messagePart)
    {
        REQUIRE(index < expect.size());
        REQUIRE_EQUAL((int)messagePart.type, (int)expect[index].type);
        REQUIRE_EQUAL(messagePart.textRange.start, expect[index].textRange.start);
        REQUIRE_EQUAL(messagePart.textRange.end, expect[index].textRange.end);
        int length = messagePart.textRange.end - messagePart.textRange.start;
        if(strncmp(str + messagePart.textRange.start, expectText[index], length) != 0)
        {
            fprintf(stderr, "Assert failed: |%.*s| == |%.*s|\n", length, str + messagePart.textRange.start, length, expectText[index]);
            exit(EXIT_FAILURE);
        }
        ++index;
    };

    dchat::compose(str, strSize, compareFunc);

    {
        expect = 
        {
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 0, 4 } },
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 4, 20 } }
        };

        expectText = 
        {
            "abc ",
            "[emoji](cool def"
        };

        index = 0;
        str = "abc [emoji](cool def";
        strSize = strlen(str);
        dchat::compose(str, strSize, compareFunc);
    }

    {
        expect = 
        {
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 0, 4 } },
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 4, 11 } },
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 11, 22 } }
        };

        expectText = 
        {
            "abc ",
            "[emoji]",
            " (cool def)"
        };

        index = 0;
        str = "abc [emoji] (cool def)";
        strSize = strlen(str);
        dchat::compose(str, strSize, compareFunc);
    }

    {
        expect = 
        {
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 0, 4 } },
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 4, 20 } },
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 20, 24 } }
        };

        expectText = 
        {
            "abc ",
            "[notemoji](cool)",
            " def"
        };

        index = 0;
        str = "abc [notemoji](cool) def";
        strSize = strlen(str);
        dchat::compose(str, strSize, compareFunc);
    }

    {
        expect = 
        {
            dchat::MessagePart { dchat::MessagePart::Type::TEXT, dchat::Range{ 0, 12 } },
            dchat::MessagePart { dchat::MessagePart::Type::EMOJI, dchat::Range{ 20, 71 } }
        };

        expectText = 
        {
            "Hello world ",
            "https://discordemoji.com/assets/emoji/PeepoHide.png"
        };

        index = 0;
        str = "Hello world [emoji](https://discordemoji.com/assets/emoji/PeepoHide.png)";
        strSize = strlen(str);
        dchat::compose(str, strSize, compareFunc);
    }

    return 0;
}