# coding=utf-8
# author: xusong
# time: 2022/8/23 16:06

"""
## TODO:
- i18 国际化  https://blog.csdn.net/qq_26212731/article/details/78457198   request.header中也有language
- iter_vocab 的 warmup
- 开关
  - add_special_token 开关
  - theme 开关 light/dark
  - token_id/tokens/bytes 开关
  - 中文字词统计，是否要包括 _ G 等字符
- 评测
  - OOV评测
- 通过 javascript 添加 hover_text
- 英文 utf-8编码
- 词典支持下载，借用image下载的标签，
- baichuan的单字数量怎么两万多个？
- qwen:  ValueError: Unclosed image token
- 路径修改为全path  meta-llama/Llama-2-13b-hf

plots

table

## related demo
- [](http://text-processing.com/demo/tokenize/)
- [gpt-tokenizer](https://gpt-tokenizer.dev/)
- [llama-tokenizer-js](https://belladoreai.github.io/llama-tokenizer-js/example-demo/build/)
- [](https://huggingface.co/spaces/Xenova/the-tokenizer-playground)

## 可视化

[ The, 2, QUICK, Brown, Foxes, jumped, over, the, lazy, dog's, bone ]
"""

import gradio as gr
from vocab import all_tokenizers
from util import *
from examples import example_fn

get_window_url_params = """
    function(url_params) {
        const params = new URLSearchParams(window.location.search);
        url_params = JSON.stringify(Object.fromEntries(params));
        return url_params;
        }
    """

with gr.Blocks(css="css/style.css", title="Tokenizer Arena") as demo:
    gr.HTML("""<h1 align="center">Tokenizer Arena ⚔️</h1>""")
    # links: https://www.coderstool.com/utf8-encoding-decoding
    # 功能：输入文本，进行分词
    # 分词器：常见的分词器有集中，
    # 背景：方便分词、看词粒度、对比

    with gr.Row():
        gr.Markdown("## Input Text")
        dropdown_examples = gr.Dropdown(
            # ["空格测试", "标点测试", "符号测试", "数字测试"],
            ["spaces", "punctuations", "symbols", "digits"],
            value="Examples",
            type="index",
            show_label=False,
            container=False,
            scale=0,
            elem_classes="example-style"
        )
    user_input = gr.Textbox(
        # value=default_user_input,
        label="Input Text",
        lines=5,
        show_label=False,
    )
    gr.Markdown("## Tokenization")
    with gr.Row():
        with gr.Column(scale=6):
            with gr.Group():
                tokenizer_type_1 = gr.Dropdown(
                    all_tokenizers,
                    label="Tokenizer 1",
                )
                with gr.Group():
                    """
                    <div class="stat"><div class="stat-value">69</div><div class="stat-label">Characters</div></div>
                    """
                    with gr.Row():
                        stats_vocab_size_1 = gr.TextArea(
                            label="VocabSize",
                            lines=1,
                            elem_classes="statistics"
                        )
                        stats_zh_token_size_1 = gr.TextArea(
                            label="ZH char/word",
                            lines=1,
                            elem_classes="statistics"
                        )
                        stats_overlap_token_size_1 = gr.TextArea(
                            # value=default_stats_overlap_token_size,
                            label="Overlap Tokens",
                            lines=1,
                            elem_classes="statistics"
                        )
                        # stats_3 = gr.TextArea(
                        #     label="Compress Rate",
                        #     lines=1,
                        #     elem_classes="statistics"
                        # )
        # https://www.onlinewebfonts.com/icon/418591
        gr.Image("images/VS.svg", scale=1, show_label=False,
                 show_download_button=False, container=False,
                 show_share_button=False)
        with gr.Column(scale=6):
            with gr.Group():
                tokenizer_type_2 = gr.Dropdown(
                    all_tokenizers,
                    label="Tokenizer 2",
                )
                with gr.Group():
                    with gr.Row():
                        stats_vocab_size_2 = gr.TextArea(
                            label="VocabSize",
                            lines=1,
                            elem_classes="statistics"
                        )
                        stats_zh_token_size_2 = gr.TextArea(
                            label="ZH char/word",  # 中文字/词
                            lines=1,
                            elem_classes="statistics"
                        )
                        # stats_6 = gr.TextArea(
                        #     label="Compress Rate",
                        #     lines=1,
                        #     elem_classes="statistics"
                        # )
                        stats_overlap_token_size_2 = gr.TextArea(
                            label="Overlap Tokens",
                            lines=1,
                            elem_classes="statistics"
                        )

    # TODO: 图 表 压缩率
    with gr.Row():
        with gr.Column():
            output_text_1 = gr.Highlightedtext(
                show_legend=True,
                elem_classes="space-show"
            )
        with gr.Column():
            output_text_2 = gr.Highlightedtext(
                show_legend=True,
                elem_classes="space-show"
            )

    with gr.Row():
        output_table_1 = gr.Dataframe()
        output_table_2 = gr.Dataframe()

    tokenizer_type_1.change(tokenize, [user_input, tokenizer_type_1],
                            [output_text_1, output_table_1])
    tokenizer_type_1.change(basic_count, [tokenizer_type_1], [stats_vocab_size_1, stats_zh_token_size_1])
    tokenizer_type_1.change(get_overlap_token_size, [tokenizer_type_1, tokenizer_type_2],
                            [stats_overlap_token_size_1, stats_overlap_token_size_2])

    user_input.change(tokenize_pair,
                      [user_input, tokenizer_type_1, tokenizer_type_2],
                      [output_text_1, output_table_1, output_text_2, output_table_2])  # , pass_request=1

    tokenizer_type_2.change(tokenize, [user_input, tokenizer_type_2],
                            [output_text_2, output_table_2])
    tokenizer_type_2.change(basic_count, [tokenizer_type_2], [stats_vocab_size_2, stats_zh_token_size_2])
    tokenizer_type_2.change(get_overlap_token_size, [tokenizer_type_1, tokenizer_type_2],
                            [stats_overlap_token_size_1, stats_overlap_token_size_2])

    dropdown_examples.change(
        example_fn,
        dropdown_examples,
        [user_input, tokenizer_type_1, tokenizer_type_2]
    )

    demo.load(_js=open("js/onload.js", "r", encoding="utf-8").read())
    demo.load(
        fn=on_load,
        inputs=[user_input],  # 这里只需要传个空object即可。
        outputs=[user_input, tokenizer_type_1, tokenizer_type_2],
        _js=get_window_url_params
    )


if __name__ == "__main__":
    # demo.queue(max_size=20).launch()
    demo.launch()