from itertools import count
from netrc import netrc
import os
import io
from typing import *
from fastapi import FastAPI, File, UploadFile
from pydantic import BaseModel
from starlette.responses import FileResponse, JSONResponse
from fastapi import FastAPI, Response, status
from tjnetwork_new import *

JUNCTION = 0
RESERVOIR = 1
TANK = 2
PIPE = 1
NODE_COUNT = 0
LINK_COUNT = 2

prjs = []
inpDir = "C:/inpfiles/"
tmpDir = "C:/tmpfiles/"

if not os.path.exists(inpDir):
    os.mkdir(inpDir)

if not os.path.exists(tmpDir):
    os.mkdir(tmpDir)

app = FastAPI()

# undo/redo
@app.post("/undo/")
async def fastapi_undo(network: str):
    undo(network)
    
    return True

@app.post("/redo/")
async def fastapi_redo(network: str):
    redo(network)
    
    return True

# project operations
@app.get("/haveproject/")
async def fastapi_have_project(network: str):
    return have_project(network)

@app.post("/createproject/")
async def fastapi_create_project(network: str):
    create_project(network)

    print(network)
    return network

@app.post("/openproject/")
async def fastapi_open_project(network: str):
    open_project(network)

    print(network)
    return network

@app.post("/closeproject/")
async def fastapi_close_project(network: str):
    close_project(network)
    return True

@app.post("/deleteproject/")
async def fastapi_delete_project(network: str):
    delete_project(network)
    return True

# element operations
@app.get("/getnodes/")
async def fastapi_get_nodes(network: str) -> list[str]:
    return get_nodes(network)

# junction
@app.post("/addjunction/")
def fastapi_add_junction(network: str, junction: str, x: float, y: float, z: float) -> ChangeSet:
    return add_junction(network, junction, x, y, z)

@app.post("/deletejunction/")
def fastapi_delete_junction(network: str, junction: str) -> ChangeSet:
    return delete_junction(network, junction)

@app.get("/getjunctionelevation/")
def fastapi_get_junction_elevation(network: str, junction: str) -> float:
    return get_junction_elevation(network, junction)

@app.get("/getjunctioncoord/")
def fastapi_get_junction_coord(network: str, junction: str) -> dict[str, float]:
    return get_junction_coord(network, junction)

@app.post("/sje/")
def fastapi_set_junction_elevation(network: str, junction: str, elevation: float) -> ChangeSet:
    return set_junction_elevation(network, junction, elevation)

@app.post("/setjunctioncoord/")
def fastapi_set_junction_coord(network: str, junction: str, x: float, y: float) -> ChangeSet:
    return set_junction_coord(network, junction, x, y)
    


@app.post("/addnode/")
async def fastapi_add_node(network: str, node: str):
    idx = add_node(network, node, JUNCTION)
    print(idx)
    print("add node")
    count = get_count(network, NODE_COUNT)
    print(count.value)

    return idx

@app.post("/addnodewithcoord/")
async def fastapi_add_node_with_coord(network: str, node: str, x: float, y: float):
    idx = add_node(network, node, JUNCTION)
    print(idx)
    count = get_count(network, NODE_COUNT)
    print(count.value)
    set_node_coord(network, node, x, y)

    return idx

@app.post("/deletenode/")
async def fastapi_delete_node(network: str, node: str):
    delete_node(network, node)
    return True

@app.get("/countnode/")
async def fastapi_count_node(network: str):
    count = get_count(network, NODE_COUNT)
    print(count)

    return count.value

@app.get("/getnodecoord/")
async def fastapi_get_node_coord(network: str, node: str):
    value = get_node_coord(network, node).value

    return JSONResponse(
        status_code = status.HTTP_200_OK,
        content =
        {
            'x': value.x,
            'y': value.y
        }
    )

async def fastapi_set_node_coord(network: str, node: str, x: float, y: float):
    set_node_coord(network, node, x, y)
    
    return True  

@app.get("/getlinks/")
async def fastapi_get_links(network: str):
    linkCount = get_count(network, LINK_COUNT)
    links = []
    for i in range(linkCount.value):
        link_id = get_link_id(network, i + 1)
        if link_id.error_code == 0 and len(link_id.value) > 0:
            links.append(link_id.value)

    return links

@app.get("/getlinknodes/")
async def fastapi_get_link_nodes(network: str, link: str):
    result = get_link_nodes(network, link)

    return JSONResponse(
        status_code = status.HTTP_200_OK,
        content={
            'start': str(result.value.from_node, 'utf-8'),
            'end': str(result.value.to_node, 'utf-8')
        })

@app.post("/addlink/")
async def fastapi_add_link(network: str, link: str, fromNode: str, toNode: str):
    idx = add_link(network, link, PIPE, fromNode, toNode)
    print(idx)

    return idx

@app.post("/deletelink/")
async def fastapi_delete_link(network: str, link: str):
    delete_link(network, link)

    return True  

@app.get("/countlink/")
async def fastapi_count_link(network: str):
    count = get_count(network, LINK_COUNT)
    print(count)

    return count.value

@app.post("/uploadinp/", status_code=status.HTTP_200_OK)
async def upload_inp(file: bytes = File(), name: str = None):
    filePath = inpDir + str(name)
    f = open(filePath, 'wb')
    f.write(file)
    f.close()

    return True

@app.get("/downloadinp/", status_code=status.HTTP_200_OK)
async def download_inp(name: str, response: Response):
    filePath = inpDir + name 
    if os.path.exists(filePath):
        return FileResponse(filePath, media_type='application/octet-stream', filename="inp.inp")
    else:
        response.status_code = status.HTTP_400_BAD_REQUEST
        return True
    
@app.get("/getjson/")
async def get_json():
    return JSONResponse(
        status_code = status.HTTP_400_BAD_REQUEST,
        content={
            'code': 400,
            'message': "this is message",
            'data': 123,
        }
    )