"""FlowDeck — Projection Form builder -> pipeline public /f/ (§16.5).

Le builder ecrit ``form_questions`` + reglages de la vue form ; le
projecteur regenere ``collections.form_config_json`` (format v6.8 inchange)
consomme par GET/POST /f/<token>. Le public ne lit jamais les tables du
builder : zero regression possible sur les liens deja diffuses.
"""
from __future__ import annotations

import json


def project_form_config(view_config: dict, questions: list[dict]) -> dict:
    """Construit le ``form_config_json`` v6.8 depuis le builder."""
    cfg = dict(view_config or {})
    sharing = cfg.get("sharing") or {}
    submit = cfg.get("submit_screen") or {}
    fields = []
    for q in sorted(questions, key=lambda x: x.get("position", 0)):
        fields.append({
            "property": q.get("property_name"),
            "label": q.get("label_override") or q.get("property_name"),
            "required": bool(q.get("required")),
            "help": q.get("help_text") or "",
            "widget": q.get("widget") or "auto",
            "max_selections": q.get("max_selections"),
            "conditional": json.loads(q["conditional_json"]) if q.get("conditional_json") else None,
        })
    return {
        "title": cfg.get("title") or "Form",
        "description": cfg.get("description") or "",
        "fields": fields,
        "sharing": {
            "audience": sharing.get("audience", "workspace"),
            "anonymous": bool(sharing.get("anonymous", False)),
            "respondent_access": sharing.get("respondent_access", "none"),
            "branding": sharing.get("branding", True),
        },
        "submit": {
            "button_text": submit.get("button_text", "Envoyer"),
            "button_color": submit.get("button_color", "blue"),
            "confirmation_title": submit.get("confirmation_title", "Merci !"),
            "confirmation_body": submit.get("confirmation_body", "Votre réponse a été enregistrée."),
        },
        "form_view_id": cfg.get("form_view_id"),
    }


def default_questions_for(properties: list[dict]) -> list[dict]:
    """Questions initiales depuis les proprietes exposables (hors formules)."""
    skip = {"formula", "rollup", "button", "unique_id",
            "created_time", "created_by", "last_edited_time", "last_edited_by"}
    out = []
    for i, p in enumerate(properties):
        if p.get("prop_type") in skip:
            continue
        out.append({
            "property_name": p.get("name"),
            "position": i,
            "label_override": None,
            "sync_label": 1,
            "help_text": "",
            "required": 0,
            "widget": "auto",
            "max_selections": None,
            "conditional_json": None,
        })
    return out