import discord

# Tier colors as Discord embed color integers
TIER_COLORS = {
    1: 0x57F287,  # green
    2: 0xF1C40F,  # gold
    3: 0x9B59B6,  # purple
    4: 0x1ABC9C,  # teal
}

MAX_TIER = 4


def tier_up_embed(
    player_name: str, tier: int, tier_name: str, track_name: str
) -> discord.Embed:
    """
    Build a Discord embed for a single evolution tier-up event.

    For tier 4 (fully evolved), uses a distinct title, description, and footer.
    For tiers 1–3, uses the standard tier-up format.
    """
    color = TIER_COLORS.get(tier, 0xFFFFFF)

    if tier == MAX_TIER:
        embed = discord.Embed(
            title="FULLY EVOLVED!",
            description=f"{player_name} has reached maximum evolution on the {track_name} track",
            color=color,
        )
        embed.set_footer(text="Rating boosts coming in a future update!")
    else:
        embed = discord.Embed(
            title="Evolution Tier Up!",
            description=f"{player_name} reached Tier {tier} ({tier_name}) on the {track_name} track",
            color=color,
        )

    return embed


def build_tier_embeds(tier_ups: list) -> list:
    """
    Build a list of Discord embeds for all tier-up events in a game.

    Each item in tier_ups should be a dict with keys:
      player_name (str), tier (int), tier_name (str), track_name (str)

    Returns an empty list if there are no tier-ups.
    """
    return [
        tier_up_embed(
            player_name=t["player_name"],
            tier=t["tier"],
            tier_name=t["tier_name"],
            track_name=t["track_name"],
        )
        for t in tier_ups
    ]