from datetime import datetime
import discord

MODALITY_LABELS = {
    "bh_email": "BH Email",
    "personal_email": "Personal Email",
    "bh_text": "BH Text",
    "personal_text": "Personal Text",
    "voice": "Voice",
    "fb_messenger": "FB Messenger",
    "nd_messenger": "ND Messenger",
}


def build_ping_embed(
    *, modality: str, sender_id: str | None, snippet: str, raw_content: str,
    captured_at: datetime,
) -> discord.Embed:
    label = MODALITY_LABELS.get(modality, modality)
    embed = discord.Embed(
        title=f"{label}" + (f" — {sender_id}" if sender_id else ""),
        description=snippet,
    )
    embed.add_field(name="modality", value=modality, inline=True)
    embed.add_field(name="sender_id", value=sender_id or "", inline=True)
    embed.add_field(name="captured_at", value=captured_at.isoformat(), inline=True)
    embed.add_field(name="raw_content", value=raw_content, inline=False)
    return embed


def parse_ping_embed(embed: discord.Embed) -> dict:
    values = {field.name: field.value for field in embed.fields}
    return {
        "modality": values["modality"],
        "sender_id": values.get("sender_id") or None,
        "raw_content": values["raw_content"],
        "captured_at": datetime.fromisoformat(values["captured_at"]),
    }