import pandas as pd
from datasets import load_dataset
import gradio as gr
import hashlib
from typing import Iterable, Union
from constants import RESULTS_REPO, ASSAY_RENAME, LEADERBOARD_RESULTS_COLUMNS

pd.set_option("display.max_columns", None)


def show_output_box(message):
    return gr.update(value=message, visible=True)


def anonymize_user(username: str) -> str:
    # Anonymize using a hash of the username
    return hashlib.sha256(username.encode()).hexdigest()[:8]


def fetch_hf_results():
    # load_dataset should cache by default if not using force_redownload
    df = load_dataset(
        RESULTS_REPO,
        data_files="auto_submissions/metrics_all.csv",
    )["train"].to_pandas()
    assert all(
        col in df.columns for col in LEADERBOARD_RESULTS_COLUMNS
    ), f"Expected columns {LEADERBOARD_RESULTS_COLUMNS} not found in {df.columns}. Missing columns: {set(LEADERBOARD_RESULTS_COLUMNS) - set(df.columns)}"
    # Show latest submission only
    df = df.sort_values("submission_time", ascending=False).drop_duplicates(
        subset=["model", "assay", "user"], keep="first"
    )
    df["property"] = df["assay"].map(ASSAY_RENAME)

    # Anonymize the user column at this point
    df.loc[df["anonymous"] != False, "user"] = "anon-" + df.loc[df["anonymous"] != False, "user"].apply(readable_hash)
    
    return df


# Readable hashing function similar to coolname or codenamize
ADJECTIVES = [
    "ancient","brave","calm","clever","crimson","curious","dapper","eager",
    "fuzzy","gentle","glowing","golden","happy","icy","jolly","lucky",
    "magical","mellow","nimble","peachy","quick","royal","shiny","silent",
    "sly","sparkly","spicy","spry","sturdy","sunny","swift","tiny","vivid",
    "witty"
]

ANIMALS = [
    "ant","bat","bear","bee","bison","boar","bug","cat","crab","crow",
    "deer","dog","duck","eel","elk","fox","frog","goat","gull","hare",
    "hawk","hen","horse","ibis","kid","kiwi","koala","lamb","lark","lemur",
    "lion","llama","loon","lynx","mole","moose","mouse","newt","otter","owl",
    "ox","panda","pig","prawn","puma","quail","quokka","rabbit","rat","ray",
    "robin","seal","shark","sheep","shrew","skunk","slug","snail","snake",
    "swan","toad","trout","turtle","vole","walrus","wasp","whale","wolf",
    "worm","yak","zebra"
]
NOUNS = [
    "rock","sand","star","tree","leaf","seed","stone","cloud","rain","snow",
    "wind","fire","ash","dirt","mud","ice","wave","shell","dust","sun",
    "moon","hill","lake","pond","reef","root","twig","wood"
]


def readable_hash(
    data: Union[str, bytes, Iterable[int]],
    *,
    salt: Union[str, bytes, None] = None,
    words: tuple[list[str], list[str]] = (ADJECTIVES, ANIMALS + NOUNS),
    sep: str = "-",
    checksum_len: int = 2,  # 0 to disable; 2–3 is plenty
    case: str = "lower",  # "lower" | "title" | "upper"
) -> str:
    """
    Deterministically map input data to 'adjective-animal[-checksum]'. Generated using ChatGPT.

    Examples
    --------
    >>> readable_hash("hello world")
    'magical-panda-6h'

    >>> readable_hash("hello world", salt="my-app-v1", checksum_len=3)
    'royal-otter-1pz'

    >>> readable_hash(b"\x00\x01\x02\x03", case="title", checksum_len=0)
    'Fuzzy-Tiger'

    Vocabulary
    ----------
    ADJECTIVES: ~160 safe, descriptive words (e.g. "ancient", "brave", "silent", "swift")
    ANIMALS: ~80 short, common animals (e.g. "dog", "owl", "whale", "tiger")
    NOUNS: optional set of ~30 neutral nouns (e.g. "rock", "star", "tree", "cloud")

    Combinations
    ------------
    - adjective + animal: ~13,000 unique names
    - adjective + noun: ~5,000 unique names
    - adjective + animal + noun: ~390,000 unique names

    Checksum
    --------
    An optional short base-36 suffix (e.g. "-6h" or "-1pz"). The checksum
    acts as a disambiguator in case two different inputs map to the same
    word combination. With 2-3 characters, collisions become vanishingly rare.
    If you only need fun, human-readable names, you can disable it by setting
    ``checksum_len=0``. If you need unique, stable identifiers, keep it enabled.
    """
    if isinstance(data, str):
        data = data.encode()
    elif isinstance(data, Iterable) and not isinstance(data, (bytes, bytearray)):
        data = bytes(data)

    h = hashlib.blake2b(digest_size=8)  # fast, stable, short digest
    if salt:
        h.update(salt.encode() if isinstance(salt, str) else salt)
        h.update(b"\x00")  # domain-separate salt from data
    h.update(data)
    digest = h.digest()

    # Use the first 6 bytes to index words; last bytes for checksum
    n1 = int.from_bytes(digest[0:3], "big")
    n2 = int.from_bytes(digest[3:6], "big")

    adj = words[0][n1 % len(words[0])]
    noun = words[1][n2 % len(words[1])]
    phrase = f"{adj}{sep}{noun}"

    if checksum_len > 0:
        # Short base36 checksum for collision visibility
        cs = int.from_bytes(digest[6:], "big")
        base36 = ""
        alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
        while cs:
            cs, r = divmod(cs, 36)
            base36 = alphabet[r] + base36
        base36 = (base36 or "0")[:checksum_len]
        phrase = f"{phrase}{sep}{base36}"

    if case == "title":
        phrase = sep.join(p.capitalize() for p in phrase.split(sep))
    elif case == "upper":
        phrase = phrase.upper()

    return phrase