"""
Read screen.png as UTF-16 LE text and save decoded text to file.
"""
import sys

path = r"D:\Yuzu-GCA\screen.png"
out_path = r"D:\Yuzu-GCA\screen_decoded.txt"

# Read raw bytes
with open(path, 'rb') as f:
    raw = f.read()

print(f"File size: {len(raw)} bytes")

# Decode as UTF-16 LE (skip BOM)
text = raw.decode('utf-16-le')
print(f"Decoded text length: {len(text)} characters")

# Write full decoded text to file
with open(out_path, 'w', encoding='utf-8') as f:
    f.write(text)
print(f"Full decoded text written to: {out_path}")

# Print first 3000 chars (replace non-printable)
safe_text = text[:3000].encode('ascii', errors='replace').decode('ascii')
print("\n=== First 3000 characters (non-ASCII replaced) ===")
print(safe_text)

# Search for specific keywords
keywords = ['manifest', 'download', 'SHA256', 'verify', 'install', 'OTA', 'version', 'error', 'fail', 'success', 'pass', 'update', '下载', '校验', '安装', '版本']
print("\n=== Keyword search ===")
for kw in keywords:
    count = text.count(kw)
    if count > 0:
        print(f"'{kw}' found {count} times")