# retoor <retoor@molodetz.nl>
import io
import logging

import imagehash
from PIL import Image

from molodetz import config
from molodetz.attachments import blob_path, blob_url, write_blob
from molodetz.database import generate_uid, media_by_kind, upsert_media
from molodetz.database.media import get_media_by_file

logger = logging.getLogger(__name__)

THUMB_WIDTH = 720
DUPLICATE_DISTANCE = 2

GALLERY = (
    ("flyer-keuzes.jpg", "flyer", "Eenendertig keuzes. Jij hebt er nul."),
    ("flyer-chat.jpg", "flyer", "Een chat is geen portfolio."),
    ("flyer-bijna.jpg", "flyer", "Bijna is geen staat."),
    ("flyer-assistent.jpg", "flyer", "De assistent oordeelt niet."),
    ("meme-vloer.jpg", "meme", "Een zesje is prima. De vloer, bedoel je."),
    ("meme-split.jpg", "meme", "Stuur ze naar huis."),
    ("meme-cursus.jpg", "meme", "Geen ebook. Wel afmaken."),
    ("take-chatlog.jpg", "meme", "Je portfolio is een chatlog."),
    ("take-copilot.jpg", "meme", "Copilot is geen senior."),
    ("take-coping.jpg", "meme", "Een zesje is coping."),
    ("poster-thuis.jpg", "meme", "Vibe coders, ga naar huis."),
    ("poster-vloer.jpg", "meme", "Een zesje? Dat is de vloer."),
    ("poster-cursus.jpg", "meme", "Geen cursus. Wel afmaken."),
    ("poster-luiheid.jpg", "meme", "AI pakt je baan niet. Luiheid wel."),
    ("poster-spel.jpg", "meme", "Het spel is om. Jij bent het niet."),
    ("story.jpg", "meme", "Geen ebook. Geen x10. Afwerken wel."),
    ("meme-zes.jpg", "meme", "Een zesje. Gefeliciteerd, je bent gemiddeld."),
    ("meme-gesprek.jpg", "meme", "Mijn portfolio is een gesprek."),
    ("meme-product.jpg", "meme", "De cursus is het product."),
    ("meme-bijna.jpg", "meme", "Iedereen staat bij bijna."),
    ("meme-compiles.jpg", "meme", "It compiles. Ship it, king."),
    ("meme-senior.jpg", "meme", "My copilot is the senior."),
    ("meme-trophy.jpg", "meme", "Peak performance, 6 out of 10."),
    ("meme-todo.jpg", "meme", "Side projects, a love story."),
)


def _thumbnail_bytes(image):
    copy = image.convert("RGB")
    copy.thumbnail((THUMB_WIDTH, THUMB_WIDTH * 2))
    buffer = io.BytesIO()
    copy.save(buffer, format="WEBP", quality=82, method=4)
    return buffer.getvalue()


def sync_gallery():
    seen_hashes = []
    synced = 0
    for position, (filename, kind, caption) in enumerate(GALLERY):
        source = config.MEDIA_SOURCE_DIR / filename
        if not source.exists():
            logger.warning("gallery source missing: %s", source)
            continue
        existing = get_media_by_file(filename)
        with Image.open(source) as image:
            width, height = image.size
            phash = imagehash.phash(image)
            if any(phash - other <= DUPLICATE_DISTANCE for other in seen_hashes):
                logger.info("gallery duplicate skipped: %s", filename)
                continue
            seen_hashes.append(phash)
            thumb_directory = existing.get("thumb_directory") if existing else None
            thumb_name = existing.get("thumb_name") if existing else None
            if not thumb_directory or not blob_path(thumb_directory, thumb_name).exists():
                thumb_directory, thumb_name = write_blob(
                    existing["uid"] if existing else generate_uid(), "webp", _thumbnail_bytes(image)
                )
        upsert_media(filename, kind, caption, position, width, height, str(phash), thumb_directory, thumb_name)
        synced += 1
    return synced


def gallery_items(kind):
    items = []
    for row in media_by_kind(kind):
        thumb = blob_url(row["thumb_directory"], row["thumb_name"]) if row.get("thumb_directory") else None
        items.append(
            {
                "uid": row["uid"],
                "filename": row["filename"],
                "caption": row["caption"],
                "width": row["width"],
                "height": row["height"],
                "source_path": f"/static/media/{row['filename']}",
                "thumb_url": thumb,
            }
        )
    return items