"""Gmail Unread - responsive."""
import os, sys, json
sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
from plugins.base import Widget
from palette import FG, INFO, OK, WARN, measure, fit_font, centered_text, is_small, is_wide


class Widget(Widget):
    name = "gmail"
    label = "Gmail Unread"
    description = "Anzahl ungelesener Emails im Posteingang."
    category = "info"

    config_schema = [
        {"key": "oauth_token_json", "label": "OAuth Token (JSON)", "type": "secret",
         "help": "token.json aus einem einmaligen OAuth-Flow."},
    ]
    default_config = {"oauth_token_json": ""}

    def fetch(self):
        tok = self.cfg("oauth_token_json")
        if not tok:
            return {"_error": "OAuth-Token fehlt"}
        try:
            from google.oauth2.credentials import Credentials
            from google.auth.transport.requests import Request
            from googleapiclient.discovery import build
            creds = Credentials.from_authorized_user_info(json.loads(tok))
            if creds.expired and creds.refresh_token:
                creds.refresh(Request())
            service = build("gmail", "v1", credentials=creds, cache_discovery=False)
            label = service.users().labels().get(userId="me", id="INBOX").execute()
            return {"unread": label.get("messagesUnread", 0)}
        except ImportError:
            return {"_error": "google-api-python-client nicht installiert"}
        except Exception as e:
            return {"_error": str(e)}

    def render(self, draw, fonts, x, y, w, h):
        pad = 8
        draw.text((x + pad, y + pad), "GMAIL", font=fonts.get("24", fonts.get("20")), fill=INFO)
        d = self.fetch()
        if "_error" in d:
            font = fit_font(draw, "Konfig fehlt", fonts, w - 2 * pad, h - 80)
            centered_text(draw, "Konfig fehlt", x, y + 60, w, h - 60, font, WARN)
            return
        unread = d["unread"]
        color = OK if unread == 0 else WARN if unread < 10 else FG
        text = str(unread)
        # Big number centered
        if is_small(w, h):
            font = fit_font(draw, text, fonts, w - 2 * pad, h - 50)
            centered_text(draw, text, x, y, w, h - 30, font, color)
        else:
            font = fit_font(draw, text, fonts, w - 2 * pad, int(h * 0.6))
            centered_text(draw, text, x, y, w, int(h * 0.6), font, color)
            font_lbl = fit_font(draw, "Ungelesen", fonts, w - 2 * pad, 24)
            centered_text(draw, "Ungelesen", x, y + int(h * 0.7), w, h // 5, font_lbl, FG)