"""Shared web helpers: Jinja templates, redirects, Bosnian labels."""

from __future__ import annotations

from pathlib import Path
from urllib.parse import quote

from fastapi.responses import RedirectResponse
from fastapi.templating import Jinja2Templates

templates = Jinja2Templates(directory=str(Path(__file__).parent / "templates"))

STATUS_LABELS = {
    "pending": "na čekanju",
    "resolved_by_owner": "riješeno",
    "confirmed": "potvrđeno",
    "rejected": "odbijeno",
    "expired": "isteklo",
}

OUTCOME_LABELS = {
    "human_answered": "javilo se osoblje",
    "request_created": "zahtjev kreiran",
    "info_only": "informacija",
    "message_taken": "poruka",
    "abandoned": "prekinut",
}

DAY_LABELS = [
    ("mon", "Ponedjeljak"),
    ("tue", "Utorak"),
    ("wed", "Srijeda"),
    ("thu", "Četvrtak"),
    ("fri", "Petak"),
    ("sat", "Subota"),
    ("sun", "Nedjelja"),
]

# Curated TTS voices (§10.5) — final list confirmed by the Phase-0 PoC bake-off.
TTS_VOICES = [
    {"id": "azure:sr-RS-SophieNeural", "label": "Sofija — ženski, topao (Azure)"},
    {"id": "azure:sr-RS-NicholasNeural", "label": "Nikola — muški, smiren (Azure)"},
    {"id": "azure:hr-HR-GabrijelaNeural", "label": "Gabrijela — ženski, vedar (Azure)"},
]


def redirect(url: str, msg: str = "", err: str = "") -> RedirectResponse:
    if msg:
        url += ("&" if "?" in url else "?") + "msg=" + quote(msg)
    if err:
        url += ("&" if "?" in url else "?") + "err=" + quote(err)
    return RedirectResponse(url, status_code=303)


def hours_to_text(working_hours: dict) -> dict[str, str]:
    """{'mon': [['09:00','13:00'],['14:00','18:00']]} → {'mon': '09:00-13:00, 14:00-18:00'}"""
    out = {}
    for key, _label in DAY_LABELS:
        intervals = (working_hours or {}).get(key, [])
        out[key] = ", ".join(f"{a}-{b}" for a, b in intervals)
    return out


def text_to_intervals(text: str) -> list[list[str]]:
    """'09:00-13:00, 14:00-18:00' → [['09:00','13:00'],['14:00','18:00']]; '' → []"""
    import re

    intervals = []
    for part in text.split(","):
        part = part.strip()
        if not part:
            continue
        m = re.match(r"^(\d{1,2})(?::(\d{2}))?\s*[-–]\s*(\d{1,2})(?::(\d{2}))?$", part)
        if not m:
            raise ValueError(f"Neispravan format: '{part}' (očekivano npr. 09:00-18:00)")
        h1, m1, h2, m2 = m.groups()
        a = f"{int(h1):02d}:{m1 or '00'}"
        b = f"{int(h2):02d}:{m2 or '00'}"
        intervals.append([a, b])
    return intervals