from datetime import datetime
from pathlib import Path
from string import Template

from .config import TMPL_DIR, CSS_PATH, PAGES_CSS_DIR, JS_DIR, _state, DbType
from .queries.db import e as _e


def _css() -> str:
    return CSS_PATH.read_text(encoding='utf-8')


def _page_css(name: str) -> str:
    parts = []
    shared = PAGES_CSS_DIR / 'filters.css'
    if shared.exists():
        parts.append(shared.read_text(encoding='utf-8'))
    main = PAGES_CSS_DIR / f'{name}.css'
    if main.exists():
        parts.append(main.read_text(encoding='utf-8'))
    for f in sorted(PAGES_CSS_DIR.glob(f'{name}_*.css')):
        parts.append(f.read_text(encoding='utf-8'))
    return '\n'.join(parts)


def _page_js(name: str) -> str:
    parts = []
    shared = JS_DIR / 'filters.js'
    if shared.exists():
        parts.append(shared.read_text(encoding='utf-8'))
    main = JS_DIR / f'{name}.js'
    if main.exists():
        parts.append(main.read_text(encoding='utf-8'))
    for f in sorted(JS_DIR.glob(f'{name}_*.js')):
        parts.append(f.read_text(encoding='utf-8'))
    return '\n'.join(parts)


def _tmpl(name: str) -> Template:
    return Template((TMPL_DIR / name).read_text(encoding='utf-8'))


def _card(label, value, color='#2563eb') -> str:
    return f'<div class="card"><div class="cv" style="color:{color}">{_e(value)}</div><div class="cl">{_e(label)}</div></div>'


def _base(title: str, content: str, active: str, db_path: str, page_css: str = '', page_js: str = '') -> str:
    now = datetime.now().strftime('%d/%m/%Y %H:%M:%S')
    nav = {'nav_dashboard': '', 'nav_runs': '', 'nav_logs': '', 'nav_report': ''}
    if active in nav:
        nav[active] = 'active'

    db_type = _state.get('db_type', 'unknown')
    h1_title = 'RPA &mdash; Corsi Intraziendali' if db_type == DbType.INTRAZ else 'RPA &mdash; Comunicazioni Regione Lombardia'

    if db_type == DbType.INTRAZ:
        cls = 'active' if active == 'nav_iscrizioni' else ''
        nav_step_link   = f'<a href="/iscrizioni" class="{cls}">Corsi Intraziendali</a>'
        cls_email = 'active' if active == 'nav_email' else ''
        nav_pec_link    = f'<a href="/email" class="{cls_email}">Email</a>'
        nav_report_link = ''
    else:
        cls = 'active' if active == 'nav_documenti' else ''
        nav_step_link = f'<a href="/documenti" class="{cls}">Documenti</a>'
        cls_pec = 'active' if active == 'nav_pec' else ''
        nav_pec_link    = f'<a href="/pec" class="{cls_pec}">PEC</a>'
        cls_rep = nav.get('nav_report', '')
        nav_report_link = f'<a href="/report" class="{cls_rep}">Report</a>'

    return _tmpl('_base.html').substitute(
        css=_css(), page_css=page_css, page_js=page_js, title=title, now=now,
        db_name=_e(Path(db_path).name),
        h1_title=h1_title,
        content=content,
        nav_step_link=nav_step_link,
        nav_pec_link=nav_pec_link,
        nav_report_link=nav_report_link,
        **nav,
    )