import re
import json
import os

def parse_json(json_str):
    try:
        return json.loads(json_str)
    except Exception as e1:
        # First attempt: Try to extract JSON from markdown code block
        json_match = re.search(r'```json\n(.*?)\n```', json_str, re.DOTALL)
        if json_match:
            json_str = json_match.group(1)
            try:
                return json.loads(json_str)
            except:
                pass
        
        # Second attempt: Remove only problematic control characters but keep valid JSON structure
        # Don't escape newlines/tabs that are part of JSON formatting
        # Only remove control chars that shouldn't be in JSON (0x00-0x08, 0x0B, 0x0C, 0x0E-0x1F)
        cleaned_str = re.sub(r'[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]', '', json_str)
        
        try:
            data = json.loads(cleaned_str)
            return data
        except Exception as e2:
            # If still failing, print debug info
            print(f"DEBUG: Failed to parse JSON. Original error: {e1}")
            print(f"DEBUG: After cleanup error: {e2}")
            print(f"DEBUG: Original JSON string (first 500 chars): {repr(json_str[:500])}")
            print(f"DEBUG: Cleaned JSON string (first 500 chars): {repr(cleaned_str[:500])}")
            raise e2

def most_similar_string(prompt, string_list) -> dict:
    similarities = [Levenshtein.distance(prompt, item["Prompt"]) for item in string_list]
    most_similar_idx = similarities.index(min(similarities))
    return string_list[most_similar_idx]


def check_and_fix_prompt(chosed_prompts, prompt_list) -> dict:
    results_dict={}

    for key, item in chosed_prompts.items():
        thought = item["Thought"]
        sim_item = most_similar_string(item["Prompt"], prompt_list)
        sim_item["Thought"] = thought
        results_dict[key] = sim_item
        
    return results_dict


def format_dimension_as_string(df, dimension_name) -> str:
    df["Dimension"] = df["Dimension"].str.lower().replace(" ", "_") # the lookup key format is subject_consistency
    row = df.loc[df['Dimension'] == dimension_name]
    if row.empty:
        return f"No data found for dimension: {dimension_name}"
    
    formatted_string = (
        f"{row['Dimension'].values[0]}: "
        f"Very High -> {row['Very High'].values[0]}, "
        f"High -> {row['High'].values[0]}, "
        f"Moderate -> {row['Moderate'].values[0]}, "
        f"Low -> {row['Low'].values[0]}, "
        f"Very Low -> {row['Very Low'].values[0]}"
    )
    
    return formatted_string

def extract_between_tags(text, tag) -> str:
    pattern = f'<{tag}>(.*?)</{tag}>'
    match = re.search(pattern, text, re.DOTALL)
    return match.group(1) if match else None


def format_plans(plans_str) -> dict:
    '''
    "<think>The user's query is about the model's ability to generate multiple objects in a single scene. To begin evaluating this capability, I will start with a basic scenario involving two distinct objects. This will help establish whether the model can handle simple multi-object scenes before exploring more complex scenarios. Now I will analyze the Basic generation of two distinct objects in a simple scene sub-aspect dimension.</think><tool>Multiple Objects</tool>"
    '''

    plan = {}
    if '</summary>' in plans_str:
        thought_content, summary_content = extract_between_tags(plans_str, "think"), extract_between_tags(plans_str, "summary")
        plan["thought"], plan["summary"] = thought_content, summary_content
    else:   
        think_content, tool_content = extract_between_tags(plans_str, "think"), extract_between_tags(plans_str, "tool")
        plan["thought"], plan["tool"] = think_content, tool_content
    
    return plan

def save_json(content, file_path):
    with open(file_path, 'w') as json_file:
        json.dump(content, json_file, indent=4)
    print(f"Results are saved to {os.path.abspath(file_path)}")

def tool_existence(tool_name):
    tool_list = ["subject consistency", "background consistency", "motion smoothness", "aesthetic quality", "imaging quality", "appearance style", "temporal style", "overall consistency", "multiple objects", "object class", "dynamic degree", "human action", "color", "spatial relationship", "scene"]
    
    # tool name could be in the format of "Subject Consistency" or "subject consistency" or "subjtect_consistency" or "advanced_subject_consistency"
    tool_name = tool_name.lower().replace("_", " ")
    for tool in tool_list:
        if tool in tool_name:
            return tool.replace(" ", "_")
    return None

def compute_score(pred, gt):
    score = 0.
    answer = parse_answer(pred)

    if answer is None:
        return score
    
    pattern = r"\s*([A-Z])\s*"
    match = re.search(pattern, answer, re.DOTALL)
    try:
        answer = match.group(1)
        if answer.strip().lower() == gt.strip().lower():
            score = 1.
    except:
        pass

    return score