from __future__ import annotations
_H='-AppPath'
_G='-AppPoolName'
_F='-SiteName'
_E='Bypass'
_D='-ExecutionPolicy'
_C='-NoProfile'
_B='pwsh'
_A='powershell.exe'
import shutil
from pathlib import Path
from string import Template
from admin import config
from admin.services.util import append_log,run_command
class IISError(Exception):0
def write_web_config(app_dir,*,slug,entrypoint,log_path):
	D='utf-8';C=app_dir;A=config.WEB_CONFIG_TEMPLATE
	if not A.is_file():raise IISError(f"Missing web.config template: {A}")
	E='.\\venv\\Scripts\\python.exe';F=f"{config.APPS_URL_PREFIX}/{slug}";G=A.read_text(encoding=D);H=Template(G).safe_substitute(PROCESS_PATH=E,ENTRYPOINT=entrypoint,SCRIPT_NAME=F,SLUG=slug);I=C/'logs';I.mkdir(parents=True,exist_ok=True);B=C/'web.config';B.write_text(H,encoding=D);append_log(log_path,f"Wrote {B}");return B
def provision_iis_app(slug,app_dir,log_path):
	A=log_path;C=f"IVistaar_App_{slug}";D=f"{config.APPS_URL_PREFIX}/{slug}";E=str(app_dir)
	if config.DRY_RUN:append_log(A,f"[DRY_RUN] Would provision IIS app pool={C} path={D} physical={E}");return
	B=config.PROVISION_SCRIPT
	if not B.is_file():raise IISError(f"Missing provision script: {B}")
	H=shutil.which(_A)or shutil.which(_B)or _A;F=[H,_C,_D,_E,'-File',str(B),_F,config.IIS_SITE_NAME,_G,C,_H,D,'-PhysicalPath',E];append_log(A,f"Running: {" ".join(F)}");I,G=run_command(F,timeout=180);append_log(A,G)
	if I!=0:raise IISError(f"IIS provision failed:\n{G}")
def remove_iis_app(slug,log_path):
	A=log_path;C=f"IVistaar_App_{slug}";D=f"{config.APPS_URL_PREFIX}/{slug}"
	if config.DRY_RUN:append_log(A,f"[DRY_RUN] Would remove IIS app path={D} pool={C}");return
	B=config.REMOVE_SCRIPT
	if not B.is_file():raise IISError(f"Missing remove script: {B}")
	G=shutil.which(_A)or shutil.which(_B)or _A;E=[G,_C,_D,_E,'-File',str(B),_F,config.IIS_SITE_NAME,_G,C,_H,D];append_log(A,f"Running: {" ".join(E)}");H,F=run_command(E,timeout=180);append_log(A,F)
	if H!=0:raise IISError(f"IIS remove failed:\n{F}")
def recycle_app_pool(slug,log_path,action='recycle'):
	D=log_path;A=action;B=f"IVistaar_App_{slug}"
	if config.DRY_RUN:append_log(D,f"[DRY_RUN] Would {A} app pool {B}");return
	F=shutil.which(_A)or shutil.which(_B)or _A
	if A=='start':C=f"Start-WebAppPool -Name '{B}'"
	elif A=='stop':C=f"Stop-WebAppPool -Name '{B}'"
	else:C=f"Restart-WebAppPool -Name '{B}'"
	G=[F,_C,_D,_E,'-Command',f"Import-Module WebAdministration; {C}"];append_log(D,f"Running: {C}");H,E=run_command(G,timeout=60);append_log(D,E)
	if H!=0:raise IISError(f"App pool {A} failed:\n{E}")
def probe_app(slug,log_path):
	A=log_path;import urllib.error,urllib.request;C=f"{config.PUBLIC_BASE_URL}{config.APPS_URL_PREFIX}/{slug}/"
	if config.DRY_RUN:append_log(A,f"[DRY_RUN] Skipping probe of {C}");return True
	append_log(A,f"Probing {C}")
	try:
		E=urllib.request.Request(C,method='GET')
		with urllib.request.urlopen(E,timeout=15)as D:append_log(A,f"Probe status: {D.status}");return 200<=D.status<500
	except urllib.error.HTTPError as B:append_log(A,f"Probe HTTP error: {B.code}");return B.code<500
	except Exception as B:append_log(A,f"Probe failed: {B}");return False
