#!/usr/bin/env python3
"""
Client configuration module for managing client-profile relationships
"""

CLIENT_PROFILES = {
    'diageo': {
        'name': 'Diageo',
        'profiles': ['diageo_key_visual', 'diageo_packaging', 'static_general', 'video_general'],
        'display_name': 'Diageo',
        'description': 'Diageo brand profiles for key visuals and packaging'
    },
    'unilever': {
        'name': 'Unilever',
        'profiles': ['unilever_key_visual', 'unilever_packaging', 'static_general', 'video_general'],
        'display_name': 'Unilever',
        'description': 'Unilever brand profiles for key visuals and packaging'
    },
    'loreal': {
        'name': "L'Oreal",
        'profiles': ['loreal_static', 'static_general', 'video_general'],
        'display_name': "L'Oreal",
        'description': "L'Oreal brand profiles with focused and comprehensive static QC checks",
        'box_folder_id': '381501258415',
        'box_reports_folder_id': '382076841334',
        'default_profile': 'loreal_static',
    },
    'amazon': {
        'name': 'Amazon',
        'profiles': ['amazon_static', 'static_general', 'video_general'],
        'display_name': 'Amazon',
        'description': 'Amazon brand profiles with design guideline QC checks'
    },
    'boots': {
        'name': 'Boots',
        'profiles': ['boots_static', 'boots_ppack', 'static_general', 'video_general'],
        'display_name': 'Boots',
        'description': 'Boots retail promotional artwork compliance checks'
    },
    'honda': {
        'name': 'Honda',
        'profiles': ['static_general', 'video_general'],
        'display_name': 'Honda',
        'description': 'Honda brand profiles for automotive marketing QC checks'
    },
    'axa': {
        'name': 'AXA',
        'profiles': ['axa_policy_document', 'axa_policy_document_diff', 'axa_accessibility', 'static_general', 'video_general'],
        'display_name': 'AXA',
        'description': 'AXA brand profiles, including multi-page policy document QC for AXA Ireland'
    },
    'rank': {
        'name': 'Rank',
        'profiles': ['static_general', 'video_general'],
        'display_name': 'Rank',
        'description': 'Rank brand profiles for marketing QC checks'
    },
    'google': {
        'name': 'Google',
        'profiles': ['static_general', 'video_general'],
        'display_name': 'Google',
        'description': 'Demo client — scope pending'
    },
    'hp': {
        'name': 'HP',
        'profiles': ['hp_copy_review', 'static_general', 'video_general'],
        'display_name': 'HP',
        'description': 'HP marketing copy QC graded against canonical Source Messaging',
        'default_profile': 'hp_copy_review',
    },
    'ferrero': {
        'name': 'Ferrero',
        'profiles': ['static_general', 'video_general'],
        'display_name': 'Ferrero',
        'description': 'Demo client — scope pending'
    },
    'general': {
        'name': 'General',
        'profiles': ['static_general', 'video_general', 'inclusive_accessibility'],
        'display_name': 'General / Other',
        'description': 'General purpose profiles and accessibility checks'
    }
}

def get_client_profiles(client_id):
    """Get profiles available for a specific client"""
    return CLIENT_PROFILES.get(client_id, {}).get('profiles', [])

def get_all_clients():
    """Get all available clients"""
    return CLIENT_PROFILES


def get_client_by_box_folder(folder_id):
    """Reverse-lookup: which client owns this Box folder_id?

    Used by the Box webhook handler. Returns the client_id (key) or None.
    Folder IDs are compared as strings since the Box API returns them as such.
    """
    target = str(folder_id) if folder_id is not None else None
    if not target:
        return None
    for cid, cfg in CLIENT_PROFILES.items():
        if str(cfg.get('box_folder_id', '') or '') == target:
            return cid
    return None


def get_clients_with_box_folder():
    """Return [(client_id, client_config_dict), ...] for clients with a Box folder configured."""
    return [
        (cid, cfg) for cid, cfg in CLIENT_PROFILES.items()
        if cfg.get('box_folder_id')
    ]


# ---------- Runtime override for default_profile ----------
#
# The static `default_profile` field on each client in CLIENT_PROFILES is the
# baseline value, set in code at deploy time. Admins can override it at runtime
# via the Settings UI; overrides persist to backend/client_defaults.json
# (gitignored, per-server). This separation means a buggy override write can
# never break server boot — worst case the override is ignored and the static
# value applies.

import os as _os
import json as _json

_DEFAULTS_OVERRIDE_PATH = _os.path.join(
    _os.path.dirname(_os.path.abspath(__file__)), 'client_defaults.json'
)


def _load_default_overrides():
    """Return the override dict {client_id: profile_id}; empty dict if no file or unreadable."""
    if not _os.path.exists(_DEFAULTS_OVERRIDE_PATH):
        return {}
    try:
        with open(_DEFAULTS_OVERRIDE_PATH, 'r') as f:
            data = _json.load(f)
        return data if isinstance(data, dict) else {}
    except (OSError, _json.JSONDecodeError):
        return {}


def _save_default_overrides(data):
    """Persist the override dict. Writes to a temp path then renames for atomicity."""
    tmp_path = _DEFAULTS_OVERRIDE_PATH + '.tmp'
    with open(tmp_path, 'w') as f:
        _json.dump(data, f, indent=2, sort_keys=True)
    _os.replace(tmp_path, _DEFAULTS_OVERRIDE_PATH)


def get_default_profile(client_id):
    """Return the effective default profile for a client.

    Resolution order: runtime override → static `default_profile` field → None.
    Used by the Box webhook handler (no logged-in user, needs a profile to run).
    """
    overrides = _load_default_overrides()
    if client_id in overrides:
        return overrides[client_id]
    cfg = CLIENT_PROFILES.get(client_id, {})
    return cfg.get('default_profile')


def set_default_profile(client_id, profile_id):
    """Persist a runtime override for a client's default profile.

    Validates that the client exists and the profile is one of the client's
    allowed profiles. Returns (True, None) on success or (False, reason) on
    rejection.
    """
    if client_id not in CLIENT_PROFILES:
        return False, f'unknown client: {client_id}'
    allowed = get_client_profiles(client_id)
    if profile_id not in allowed:
        return False, f"profile '{profile_id}' is not in client {client_id}'s profile list"
    overrides = _load_default_overrides()
    overrides[client_id] = profile_id
    _save_default_overrides(overrides)
    return True, None


def clear_default_profile_override(client_id):
    """Remove a runtime override so the static default applies again."""
    overrides = _load_default_overrides()
    if client_id in overrides:
        del overrides[client_id]
        _save_default_overrides(overrides)

def validate_client_profile(client_id, profile_id):
    """Validate that a profile belongs to a client"""
    client_profiles = get_client_profiles(client_id)
    return profile_id in client_profiles

def get_profiles_with_visibility(client_id):
    """
    Get all profiles available to a client considering visibility settings

    Args:
        client_id: Client ID to get profiles for

    Returns:
        List of profile IDs available to this client
    """
    import os
    import json
    import glob

    available_profiles = []

    # First, get the profiles assigned to this client in CLIENT_PROFILES
    # This is our baseline for backward compatibility
    baseline_profiles = get_client_profiles(client_id)

    # Get profiles directory
    profiles_dir = os.path.join(os.path.dirname(__file__), 'profiles')
    profile_files = glob.glob(os.path.join(profiles_dir, '*.json'))

    for profile_file in profile_files:
        try:
            with open(profile_file, 'r') as f:
                profile_data = json.load(f)

            profile_id = os.path.basename(profile_file).replace('.json', '')

            # Check if profile has visibility settings
            has_visibility_settings = 'visibility' in profile_data

            if has_visibility_settings:
                # Use new visibility system if configured
                visibility = profile_data.get('visibility', 'all')
                visible_to_clients = profile_data.get('visible_to_clients', [])

                if visibility == 'all':
                    available_profiles.append(profile_id)
                elif visibility == 'client_specific' and client_id in visible_to_clients:
                    available_profiles.append(profile_id)
            else:
                # Fall back to CLIENT_PROFILES mapping for backward compatibility
                if profile_id in baseline_profiles:
                    available_profiles.append(profile_id)

        except (json.JSONDecodeError, FileNotFoundError):
            continue

    return available_profiles


# Admin membership now lives in backend/user_access.json.
# Kept as a thin shim so any older callers keep working.
def is_admin(email):
    """Deprecated — delegates to user_access.is_admin()."""
    from user_access import is_admin as _is_admin
    return _is_admin(email)