import os
import gradio as gr
from Plan.AiLLM import llm_recognition
from Plan.pytesseractOCR import ocr_recognition
from Preprocess.preprocessImg import PreprocessImg

# 取得所有語言清單
languages = os.popen('tesseract --list-langs').read().split('\n')[1:-1]


# 預處理圖片
def preprocess_image(image):
    if image is None:
        gr.Warning("尚未上傳圖片！")
        raise ValueError("尚未上傳圖片！")
    preprocessed_images = PreprocessImg(image)
    return (
        preprocessed_images,
        True,
        preprocessed_images[0],
        preprocessed_images[1],
        preprocessed_images[2],
        preprocessed_images[3],
        preprocessed_images[4]
    )


# pytesseract OCR
def Basic_ocr(valid_type, language, preprocessed_images, finish_pre_img):
    if not finish_pre_img:
        gr.Warning("請先完成圖像預處理！")
        raise ValueError("請先完成圖像預處理！")

    # 方案一
    ocr_result_001 = ocr_recognition(preprocessed_images[0], valid_type, language)
    # 方案二
    ocr_result_002 = ocr_recognition(preprocessed_images[1], valid_type, language)
    # 方案三
    ocr_result_003 = ocr_recognition(preprocessed_images[2], valid_type, language)
    # 方案四
    ocr_result_004 = ocr_recognition(preprocessed_images[3], valid_type, language)
    # 方案五
    ocr_result_005 = ocr_recognition(preprocessed_images[4], valid_type, language)

    return ocr_result_001, ocr_result_002, ocr_result_003, ocr_result_004, ocr_result_005


# AI LLM OCR
def AiLLM_ocr(valid_type, language, preprocessed_images, finish_pre_img):
    if not finish_pre_img:
        gr.Warning("請先完成圖像預處理！")
        raise ValueError("請先完成圖像預處理！")

    # 方案一
    llm_result_001 = llm_recognition(preprocessed_images[0], valid_type, language)
    # 方案二
    llm_result_002 = llm_recognition(preprocessed_images[1], valid_type, language)
    # 方案三
    llm_result_003 = llm_recognition(preprocessed_images[2], valid_type, language)
    # 方案四
    llm_result_004 = llm_recognition(preprocessed_images[3], valid_type, language)
    # 方案五
    llm_result_005 = llm_recognition(preprocessed_images[4], valid_type, language)

    return llm_result_001, llm_result_002, llm_result_003, llm_result_004, llm_result_005


# VIEW
with gr.Blocks() as demo:
    with gr.Row():
        image_input = gr.Image(type="pil", label="上傳圖片")
        validation_type = gr.Dropdown(choices=["純文字", "身分證正面", "身分證反面"], label="驗證類別")
        language_dropdown = gr.Dropdown(choices=languages, value="chi_tra", label="語言")

    with gr.Row():
        preImg_button = gr.Button("圖片預先處理")

    with gr.Row():
        with gr.Column():
            ocr_button = gr.Button("使用 Pytesseract OCR 辨識")
            gr.Markdown(
                "<div style='display: flex;justify-content: center;align-items: center;background-color: red;font-weight: bold;text-decoration: underline;font-size: 20px;'>Package: Google Pytesseract</div>")
        with gr.Column():
            llm_button = gr.Button("使用 AI LLM 模型辨識")
            gr.Markdown(
                "<div style='display: flex;justify-content: center;align-items: center;background-color: red;font-weight: bold;text-decoration: underline;font-size: 20px;'>Package：Bert-base-chinese</div>")

    with gr.Row():
        preprocess_output_001 = gr.Image(type="pil", label="預處理後的圖片-方案一")
        ocr_output_001 = gr.JSON(label="OCR-001-解析結果")
        llm_output_001 = gr.JSON(label="AiLLM-001-解析結果")
    with gr.Row():
        preprocess_output_002 = gr.Image(type="pil", label="預處理後的圖片-方案二")
        ocr_output_002 = gr.JSON(label="OCR-002-解析結果")
        llm_output_002 = gr.JSON(label="AiLLM-002-解析結果")

    with gr.Row():
        preprocess_output_003 = gr.Image(type="pil", label="預處理後的圖片-方案三")
        ocr_output_003 = gr.JSON(label="OCR-003-解析結果")
        llm_output_003 = gr.JSON(label="AiLLM-003-解析結果")
    with gr.Row():
        preprocess_output_004 = gr.Image(type="pil", label="預處理後的圖片-方案四")
        ocr_output_004 = gr.JSON(label="OCR-004-解析結果")
        llm_output_004 = gr.JSON(label="AiLLM-004-解析結果")
    with gr.Row():
        preprocess_output_005 = gr.Image(type="pil", label="預處理後的圖片-方案五")
        ocr_output_005 = gr.JSON(label="OCR-005-解析結果")
        llm_output_005 = gr.JSON(label="AiLLM-005-解析結果")

    # 定義狀態
    finish_pre_img_state = gr.State(False)
    preprocessed_images_state = gr.State([])

    # 預先處理圖片 按鈕
    preImg_button.click(preprocess_image, inputs=[image_input],
                        outputs=[preprocessed_images_state, finish_pre_img_state,
                                 preprocess_output_001, preprocess_output_002,
                                 preprocess_output_003, preprocess_output_004,
                                 preprocess_output_005])
    # pytesseract 按鈕
    ocr_button.click(Basic_ocr, inputs=[validation_type, language_dropdown,
                                        preprocessed_images_state, finish_pre_img_state],
                     outputs=[ocr_output_001, ocr_output_002, ocr_output_003, ocr_output_004, ocr_output_005])
    # AI LLM 按鈕
    llm_button.click(AiLLM_ocr, inputs=[validation_type, language_dropdown,
                                        preprocessed_images_state, finish_pre_img_state],
                     outputs=[llm_output_001, llm_output_002, llm_output_003, llm_output_004, llm_output_005])

demo.launch(share=False)