"""
Find sky-btn NButton tags that still lack <template #icon>.
Writes report to a file to avoid terminal encoding issues.
"""
import re, os, sys

SRC = 'd:/ClaudeCode/frontend/src'
OUT = 'd:/ClaudeCode/frontend/src/sky_btn_report.txt'

def find_sky_btn_gaps(content):
    template_start = content.find('<template>')
    if template_start < 0:
        m = re.search(r'<template\b[^>]*>', content)
        if not m:
            return []
        template_start = m.start()
    template_end = content.rfind('</template>')
    if template_end < 0:
        return []
    template_end += len('</template>')

    template = content[template_start:template_end]
    results = []

    for m in re.finditer(r'<[Nn][-]?[Bb]utton\b', template):
        tag_start = m.start()
        in_dq = False
        in_sq = False
        for i in range(tag_start):
            ch = template[i]
            if ch == '\\':
                continue
            if ch == '"' and not in_sq:
                in_dq = not in_dq
            elif ch == "'" and not in_dq:
                in_sq = not in_sq
        if in_dq or in_sq:
            continue

        pos = m.end()
        in_dq = False
        in_sq = False
        tag_end = -1
        while pos < len(template):
            ch = template[pos]
            if ch == '\\':
                pos += 2
                continue
            if ch == '"' and not in_sq:
                in_dq = not in_dq
            elif ch == "'" and not in_dq:
                in_sq = not in_sq
            elif ch == '>' and not in_dq and not in_sq:
                tag_end = pos + 1
                break
            pos += 1
        if tag_end < 0:
            continue

        tag_text = template[tag_start:tag_end]
        if 'sky-btn' not in tag_text:
            continue

        # Check if already has icon template
        if '/>' in tag_text:
            continue
        rest = template[tag_end:]
        # find matching close
        depth = 0
        p = 0
        while p < len(rest):
            if re.match(r'<[Nn][-]?[Bb]utton\b', rest[p:]):
                depth += 1
                p += 1
                continue
            cm = re.match(r'</[Nn][-]?[Bb]utton\s*>', rest[p:])
            if cm:
                if depth == 0:
                    break
                depth -= 1
                p += cm.end()
                continue
            p += 1
        content_before_close = rest[:p]
        if re.search(r'<template\s+#icon\b', content_before_close):
            continue
        if re.search(r'<template\s+v-slot:icon\b', content_before_close):
            continue

        # text prop
        stripped = re.sub(r'"[^"]*"', '', tag_text)
        stripped = re.sub(r"'[^']*'", '', stripped)
        has_text_prop = False
        for tp in re.finditer(r'\btext\b', stripped):
            pre = stripped[tp.start()-1] if tp.start() > 0 else ' '
            if pre in (' ', '\t', '\n', '\r', '>'):
                has_text_prop = True
                break
        if has_text_prop:
            continue

        if re.search(r'\bsize\s*=\s*"(tiny|mini)"', tag_text):
            continue

        qm = re.search(r'\bquaternary\b', tag_text)
        if qm and (qm.start() == 0 or tag_text[qm.start()-1] != ':'):
            continue

        # Extract text
        if '/>' in tag_text:
            continue
        depth = 0
        p = 0
        while p < len(rest):
            if re.match(r'<[Nn][-]?[Bb]utton\b', rest[p:]):
                depth += 1
                p += 1
                continue
            cm = re.match(r'</[Nn][-]?[Bb]utton\s*>', rest[p:])
            if cm:
                if depth == 0:
                    break
                depth -= 1
                p += cm.end()
                continue
            p += 1
        text = re.sub(r'<[^>]+>', '', rest[:p]).strip()
        if not text:
            continue

        results.append((tag_start, tag_text, text))

    return results


def main():
    lines = []
    total_gaps = 0
    for root, dirs, files in os.walk(SRC):
        for f in sorted(files):
            if not f.endswith('.vue'):
                continue
            filepath = os.path.join(root, f)
            with open(filepath, 'r', encoding='utf-8') as fh:
                content = fh.read()
            if 'sky-btn' not in content:
                continue
            gaps = find_sky_btn_gaps(content)
            if gaps:
                rel = os.path.relpath(filepath, SRC)
                lines.append(f'\n{rel} ({len(gaps)} buttons):')
                total_gaps += len(gaps)
                for _, tag_text, btn_text in gaps:
                    lines.append(f'  btn_text="{btn_text}"')
                    lines.append(f'  tag_text={tag_text[:80]}')
                    lines.append('')

    lines.insert(0, f'Total buttons without icons: {total_gaps}')
    report = '\n'.join(lines)
    with open(OUT, 'w', encoding='utf-8') as f:
        f.write(report)
    print(f'Report written to {OUT}')

if __name__ == '__main__':
    main()