"""Permission initialization for integrated CRM application.

Reads perm_config.py and registers permissions to database.
This should be run during deployment or first-time setup.

Usage:
    # During deployment
    python app/init_permissions.py
    
    # Or called from integrated_crm_app.py init()
"""
import os
import sys
import asyncio
from appPublic.uniqueID import getID
from appPublic.log import debug, info
from sqlor.dbpools import DBPools


async def ensure_permission(sor, path, name='', permtype='page'):
    """Ensure a permission exists in the database."""
    recs = await sor.R('permission', {'path': path})
    if recs:
        return recs[0].id
    permid = getID()
    await sor.C('permission', {
        'id': permid,
        'name': name or path.split('/')[-1] or path,
        'path': path,
        'permtype': permtype,
    })
    return permid


async def ensure_role(sor, roleid, name, desc=''):
    """Ensure a role exists with the given ID."""
    recs = await sor.R('role', {'id': roleid})
    if recs:
        return recs[0].id
    await sor.C('role', {
        'id': roleid,
        'orgtypeid': '*',
        'name': name,
    })
    return roleid


async def grant_permission(sor, roleid, permid):
    """Grant a permission to a role if not already granted."""
    recs = await sor.R('rolepermission', {'roleid': roleid, 'permid': permid})
    if not recs:
        await sor.C('rolepermission', {
            'id': getID(),
            'roleid': roleid,
            'permid': permid,
        })


async def init_permissions_from_config(dbname, config_module=None):
    """Initialize all permissions from perm_config.py.
    
    CRM是单业主机构系统，所有角色属于同一业主机构。
    流程：
    1. 创建约定角色（any/logined/anonymous）和定义的角色
    2. 注册 PERMISSION_MATRIX 中的路径权限
    3. 注册 CRUD 路径并授权
    """
    if config_module is None:
        sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
        from app.perm_config import (
            ROLES, PERMISSION_MATRIX, CRUD_TABLES
        )
    else:
        ROLES = config_module.ROLES
        PERMISSION_MATRIX = config_module.PERMISSION_MATRIX
        CRUD_TABLES = config_module.CRUD_TABLES
    
    db = DBPools()
    async with db.sqlorContext(dbname) as sor:
        # Step 1: 创建约定角色（固定ID，rbac/userperm.py硬编码检查）
        info('Creating convention roles...')
        role_ids = {}
        
        # 约定角色必须用固定ID
        for fixed_id in ['any', 'logined', 'anonymous']:
            role_ids[fixed_id] = await ensure_role(sor, fixed_id, fixed_id)
        
        # Step 2: 创建定义的角色
        info('Creating defined roles...')
        for role in ROLES:
            role_ids[role['id']] = await ensure_role(
                sor, role['id'], role['name'], role.get('desc', '')
            )
        
        # Step 3: 注册权限矩阵中的路径并授权
        info('Registering permissions from matrix...')
        perm_count = 0
        
        for module, paths in PERMISSION_MATRIX.items():
            for path_pattern, role_list in paths.items():
                permid = await ensure_permission(sor, path_pattern,
                    name=f'{module}: {path_pattern}', permtype='module')
                
                for role_name in role_list:
                    if role_name in role_ids:
                        await grant_permission(sor, role_ids[role_name], permid)
                        perm_count += 1
        
        # Step 4: 注册 CRUD 路径
        info('Registering CRUD paths...')
        for module, tables in CRUD_TABLES.items():
            for table in tables:
                crud_path = f'/{module}/{table}/'
                permid = await ensure_permission(sor, crud_path,
                    name=f'{module}/{table} CRUD', permtype='crud')
                
                # 根据模块权限矩阵授予权限
                if module in PERMISSION_MATRIX:
                    for path_pattern, role_list in PERMISSION_MATRIX[module].items():
                        if path_pattern.startswith(f'/{module}'):
                            for role_name in role_list:
                                if role_name in role_ids:
                                    await grant_permission(sor, role_ids[role_name], permid)
                                    perm_count += 1
        
        info(f'Permission initialization complete: {perm_count} grants created')


def main():
    """Run permission initialization."""
    import json
    from appPublic.jsonConfig import getConfig
    from appPublic.dictObject import DictObject
    
    config_path = os.path.dirname(os.path.dirname(__file__))
    config = getConfig(config_path, {'workdir': config_path})
    
    # Convert database config to DictObject format expected by DBPools
    db_config = {}
    for dbname, dbconf in config.databases.items():
        db_config[dbname] = DictObject(driver=dbconf['driver'], kwargs=DictObject(**dbconf['kwargs']))
    
    DBPools(db_config)
    
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)
    dbname = list(config.databases.keys())[0]
    loop.run_until_complete(init_permissions_from_config(dbname))


if __name__ == '__main__':
    main()