"""FlowDeck — Board : synced.

Découpe A28 de l'ancien app/routers/board.py (2 101 lignes, 53 routes) — un module par concern, contrat inchangé.
"""
from __future__ import annotations

import logging

from fastapi import APIRouter, Body, HTTPException, Query, Request

from app.auth.session import SessionManager

logger = logging.getLogger(__name__)
router = APIRouter(tags=["board"], prefix="/board")




# ═══════════════ v5.14.0: Synced Blocks ─═══════════════════
# These routes MUST be registered before the catch-all /{owner}/{repo} below.

@router.get("/api/synced-blocks")
def list_synced_blocks_api(request: Request, workspace: str = Query(default="")):
    """List synced blocks for a workspace."""
    user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
    from app.services.synced_blocks import list_synced_blocks
    return {"synced_blocks": list_synced_blocks(workspace or user.get("login", ""))}




@router.post("/api/synced-blocks")
def create_synced_block_api(request: Request, body: dict = Body(...)):
    """Create a new synced block."""
    user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
    from app.services.synced_blocks import create_synced_block
    sid = create_synced_block(
        workspace=body.get("workspace", ""),
        title=body.get("title", "Synced block"),
        content=body.get("content", []),
        created_by=user.get("id"),
    )
    return {"status": "ok", "synced_block_id": sid}




@router.put("/api/synced-blocks/{sid}")
async def update_synced_block_api(request: Request, sid: int):
    """Update a synced block's content (propagates to all pages)."""
    try:
        body = await request.json()
    except Exception:
        raise HTTPException(400, "Invalid JSON body") from None
    from app.services.synced_blocks import (
        get_synced_block,
        page_ids_for_synced,
        sync_synced_blocks_in_page,
        update_synced_block,
    )
    sb = get_synced_block(sid)
    if not sb:
        raise HTTPException(404, "Synced block not found")
    update_synced_block(sid, body.get("title", sb["title"]), body.get("content", []))
    # v6.5.0: rewrite every referencing page's stored content first (DB row
    # content pages included), THEN push the realtime update so open rooms
    # reload the fresh content from the DB.
    for pid in page_ids_for_synced(sid):
        sync_synced_blocks_in_page(pid)
    from app.services.realtime_server import manager
    await manager._propagate_synced(sid)
    return {"status": "ok"}




@router.delete("/api/synced-blocks/{sid}")
async def delete_synced_block_api(request: Request, sid: int):
    """Delete a synced block."""
    from app.services.synced_blocks import (
        delete_synced_block,
        get_synced_block,
        mark_synced_block_deleted,
        page_ids_for_synced,
    )
    sb = get_synced_block(sid)
    if not sb:
        raise HTTPException(404, "Synced block not found")
    # v6.5.0: collect referencing pages BEFORE the FK cascade wipes the
    # refs, rewrite their stored content (deleted state), then broadcast.
    pids = page_ids_for_synced(sid)
    delete_synced_block(sid)
    mark_synced_block_deleted(sid, pids)
    from app.services.realtime_server import manager
    await manager._broadcast_synced_to(pids, sid)
    return {"status": "ok"}




@router.get("/api/synced-blocks/{sid}")
def get_synced_block_api(sid: int):
    """Get a synced block by id."""
    from app.services.synced_blocks import get_synced_block
    sb = get_synced_block(sid)
    if not sb:
        raise HTTPException(404, "Synced block not found")
    return dict(sb)




@router.post("/api/pages/{page_id}/synced")
def add_synced_to_page(request: Request, page_id: int, body: dict = Body(...)):
    """Add a synced block reference to a page."""
    from app.services.synced_blocks import add_page_synced, get_synced_block
    sid = body.get("synced_block_id")
    sb = get_synced_block(sid)
    if not sb:
        raise HTTPException(404, "Synced block not found")
    add_page_synced(page_id, sid, body.get("block_index", 0))
    return {"status": "ok", "synced_block_id": sid}




@router.delete("/api/pages/{page_id}/synced/{sid}")
def remove_synced_from_page(request: Request, page_id: int, sid: int):
    """Remove a synced block reference from a page (unsync)."""
    from app.services.synced_blocks import remove_page_synced
    remove_page_synced(page_id, sid)
    return {"status": "ok"}




@router.get("/api/pages/{page_id}/synced")
def get_page_synced_refs(request: Request, page_id: int):
    """Get all synced block references for a page."""
    from app.services.synced_blocks import get_page_synced
    return {"synced_blocks": get_page_synced(page_id)}


# ═══════════ Board page ═══════════