#!/usr/bin/env python
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#
# This file contains the validation for checking a .gns3 file
#

from .computes import Compute
from .drawings import Drawing
from .links import Link
from .nodes import Node

from .projects import (
    Supplier,
    Variable
)

from pydantic import BaseModel, Field
from typing import Optional, List
from enum import Enum
from uuid import UUID


class TopologyType(str, Enum):

    topology = "topology"


class TopologyContent(BaseModel):

    computes: List[Compute] = Field(..., description="List of computes")
    drawings: List[Drawing] = Field(..., description="List of drawings")
    links: List[Link] = Field(..., description="List of links")
    nodes: List[Node] = Field(..., description="List of nodes")


class Topology(BaseModel):

    project_id: UUID = Field(..., description="Project UUID")
    type: TopologyType = Field(..., description="Type of file. It's always topology")
    revision: int = Field(..., description="Version of the .gns3 specification")
    version: str = Field(..., description="Version of the GNS3 software which have update the file for the last time")
    name: str = Field(..., description="Name of the project")
    topology: TopologyContent = Field(..., description="Topology content")
    auto_start: Optional[bool] = Field(None, description="Start the topology when opened")
    auto_close: Optional[bool] = Field(None, description="Close the topology when no client is connected")
    scene_height: Optional[int] = Field(None, description="Height of the drawing area")
    scene_width: Optional[int] = Field(None, description="Width of the drawing area")
    zoom: Optional[int] = Field(None, description="Zoom of the drawing area")
    show_layers: Optional[bool] = Field(None, description="Show layers on the drawing area")
    snap_to_grid: Optional[bool] = Field(None, description="Snap to grid on the drawing area")
    show_grid: Optional[bool] = Field(None, description="Show the grid on the drawing area")
    grid_size: Optional[int] = Field(None, description="Grid size for the drawing area for nodes")
    drawing_grid_size: Optional[int] = Field(None, description="Grid size for the drawing area for drawings")
    show_interface_labels: Optional[bool] = Field(None, description="Show interface labels on the drawing area")
    supplier: Optional[Supplier] = Field(None, description="Supplier of the project")
    variables: Optional[List[Variable]] = Field(None, description="Variables required to run the project")


def main():

    import json
    import sys

    with open(sys.argv[1]) as f:
        data = json.load(f)
        Topology.parse_obj(data)


if __name__ == '__main__':
    main()