#!/usr/bin/env python3
"""批量更新 L2 和共用题型 SKILL.md 中的难度对应关系表"""

import os
import re

BASE = "/root/.openclaw/workspace-xiaoyan/business_production/单元挑战/skills/unit_challenge/questions"

# New L2 8-stage difficulty table
L2_NEW_TABLE = """## 难度对应关系（与教研标准对齐）
| 难度等级 | 对应L2阶段（Unit范围） | 对标说明 | 难度描述 |
|------|---------|---------|------|
"""

# Store the A/B/C/D rows with the new mapping - 通用声明式,实际难度描述(最后一列)保留原样
L2_NEW_HEADER = "| 难度等级 | 对应L2阶段（Unit范围） | 对标说明 | 难度描述 |"

# Maps for old->new grade columns
L2_GRADE_MAP = {
    "A级": "| A级 | U1-U12（阶段1-2） | Flyers入门→基础 |",
    "B级": "| B级 | U13-U24（阶段3-4） | Flyers达标→KET入门 |",
    "C级": "| C级 | U25-U36（阶段5-6） | KET基础→强化 |",
    "D级": "| D级 | U37-U48（阶段7-8） | KET高位→达标 |",
}

def update_l2_exclusive(filepath):
    """Update L2专属题型: replace entire difficulty table with 8-stage version"""
    with open(filepath, 'r', encoding='utf-8') as f:
        content = f.read()
    
    original = content
    
    # ---- Part 1: Replace the difficulty table ----
    # Find the section from "## 难度对应关系" to next heading/separator
    pattern = r'(## 难度对应关系.*?\n)\| 难度等级 \|.*?\n\|[-|\s]*\n((?:\| [ABCD]级 \|.*?\n)+)'
    
    def replace_table(match):
        section_title = match.group(1)
        old_rows = match.group(2)
        
        new_rows = []
        for old_row in old_rows.strip().split('\n'):
            # Extract the last column (难度描述) from old row
            parts = old_row.split('|')
            if len(parts) >= 4:
                desc = parts[-2].strip() if len(parts) > 4 else parts[-1].strip()
                # Determine which grade
                for grade, new_prefix in L2_GRADE_MAP.items():
                    if grade in old_row:
                        new_rows.append(f"{new_prefix} {desc} |")
                        break
                else:
                    new_rows.append(old_row)
        
        return section_title + L2_NEW_HEADER + '\n' + '\n'.join(new_rows) + '\n'
    
    content = re.sub(pattern, replace_table, content, flags=re.DOTALL)
    
    # ---- Part 2: Update config field description for 难度等级 ----
    # Pattern: | 难度等级 | ✅ | `A级` / `...` / `...` | ... |
    # Replace with new references
    def replace_config(match):
        full_line = match.group(0)
        # Replace old stage/cambridge refs with new ones
        new_line = re.sub(
            r'`[ABCD]级` / `(?:L[12])(?:第)?[\d-]+阶段` / `(?:Starters|Movers|Flyers)[\s\d-]*`',
            lambda m: m.group(0).replace(
                m.group(0),
                re.sub(
                    r'`([ABCD]级)` / `.*?` / `.*?`',
                    lambda g: {
                        'A级': '`A级` / `U1-U12（阶段1-2）` / `Flyers入门→基础`',
                        'B级': '`B级` / `U13-U24（阶段3-4）` / `Flyers达标→KET入门`',
                        'C级': '`C级` / `U25-U36（阶段5-6）` / `KET基础→强化`',
                        'D级': '`D级` / `U37-U48（阶段7-8）` / `KET高位→达标`',
                    }[g.group(1)],
                    m.group(0)
                )
            ),
            full_line
        )
        # Also update the note column
        new_line = new_line.replace('难度等级或对应阶段', '难度等级（L2用Unit范围）')
        return new_line
    
    content = re.sub(
        r'\| 难度等级 \| ✅ \|.*?\|.*?\|',
        replace_config,
        content
    )
    
    if content != original:
        with open(filepath, 'w', encoding='utf-8') as f:
            f.write(content)
        return True
    return False


def update_common(filepath):
    """Update L1&L2共用题型: add L2 dimension after L1 table"""
    with open(filepath, 'r', encoding='utf-8') as f:
        content = f.read()
    
    original = content
    
    # Check if already has L2 dimension
    if 'L2 维度' in content or 'L2阶段（Unit范围）' in content:
        return False
    
    # Find end of L1 difficulty table (## 难度对应关系 ... through last D级 row)
    pattern = r'(## 难度对应关系.*?\n(?:\| .*?\n)*)'
    
    def add_l2_dimension(match):
        table_block = match.group(1)
        l2_note = (
            "\n> **L2 难度维度（对标 Flyers/KET，每2阶段为1个难度等级）：**\n"
            "> - A级 = U1-U12（阶段1-2）：Flyers入门→Flyers基础\n"
            "> - B级 = U13-U24（阶段3-4）：Flyers达标→KET入门\n"
            "> - C级 = U25-U36（阶段5-6）：KET基础→KET强化\n"
            "> - D级 = U37-U48（阶段7-8）：KET高位→KET达标\n"
        )
        return table_block + l2_note
    
    content = re.sub(pattern, add_l2_dimension, content, flags=re.DOTALL)
    
    # Also update config row if it references Starters/Movers
    content = re.sub(
        r'\| 难度等级 \| ✅ \|.*?\| 难度等级或对应阶段 \|',
        lambda m: m.group(0).replace('难度等级或对应阶段', '难度等级（L1用Starters/Movers，L2用Unit范围）'),
        content
    )
    
    if content != original:
        with open(filepath, 'w', encoding='utf-8') as f:
            f.write(content)
        return True
    return False


def main():
    L2_FILES = [
        "listening/L2/listening_short_conversation/SKILL.md",
        "listening/L2/listening_long_conversation/SKILL.md",
        "listening/L2/listening_form_fill/SKILL.md",
        "listening/L2/listening-choicePic/SKILL.md",
        "listening/L2/listening_info_match/SKILL.md",
        "reading/reading_info_match/SKILL.md",
        "reading/reading_paragraph_match/SKILL.md",
        "reading/reading_long_passage/SKILL.md",
        "reading/reading_cloze/SKILL.md",
        "reading/reading_open_fill/SKILL.md",
        "writing/writing_email_reply/SKILL.md",
        "writing/writing_picture_writing/SKILL.md",
        "speaking/L2/speaking_topic_discussion/SKILL.md",
    ]
    
    COMMON_FILES = [
        "reading/common/reading_pic_qa/SKILL.md",
        "reading/common/reading_pic_judge/SKILL.md",
        "speaking/common/speaking_daily_qa/SKILL.md",
        "writing/common/writing_pic_qa/SKILL.md",
    ]
    
    updated = 0
    
    print("=== L2 专属题型 ===")
    for rel_path in L2_FILES:
        full = os.path.join(BASE, rel_path)
        if not os.path.exists(full):
            print(f"  [MISS] {rel_path}")
            continue
        if update_l2_exclusive(full):
            print(f"  [OK] {rel_path}")
            updated += 1
        else:
            print(f"  [NO CHANGE] {rel_path}")
    
    print("\n=== L1&L2 共用题型 ===")
    for rel_path in COMMON_FILES:
        full = os.path.join(BASE, rel_path)
        if not os.path.exists(full):
            print(f"  [MISS] {rel_path}")
            continue
        if update_common(full):
            print(f"  [OK] {rel_path}")
            updated += 1
        else:
            print(f"  [NO CHANGE] {rel_path}")
    
    print(f"\n=== Done: {updated} files updated ===")

if __name__ == '__main__':
    main()