from collections import OrderedDict
from math import sqrt
from pathlib import Path

from django.shortcuts import render

import troggle.settings as settings
from troggle.core.models.caves import Cave, Entrance
from troggle.core.models.logbooks import LogbookEntry
from troggle.core.models.survex import SurvexPersonRole, SurvexStation
from troggle.core.models.troggle import DataIssue, Expedition, Person, PersonExpedition
from troggle.core.models.wallets import Wallet
from troggle.core.utils import current_expo
from troggle.parsers.people import GetPersonExpeditionNameLookup, foreign_friends

# from django.views.generic.list import ListView
"""Very simple report pages summarizing data about the whole set of expeditions and of
the status of data inconsistencies
"""

def svxfilewild(request, year=None):
    """Looks for survexfiles which do not have an associated
    wallet, per year
    """
    legsbyexpo = []
    addupsurvexlength = 0.0
    addupsurvexlegs = 0
 
    if not year:
        expos = Expedition.objects.all()
    else:
        expos = Expedition.objects.filter(year=year)
    
    for expedition in expos:
        survexblocks = expedition.survexblock_set.all()
        legsyear = 0
        survexleglength = 0.0
        for survexblock in survexblocks:
            survexleglength += survexblock.legslength
            legsyear += int(survexblock.legsall)
        addupsurvexlength += survexleglength
        addupsurvexlegs += legsyear
        legsbyexpo.append((expedition, {"nsurvexlegs": legsyear, "survexleglength": survexleglength}))
    legsbyexpo.reverse()

    svxwild = []
    wildlength = 0.0
    for expedition in expos:
        survexblocks = expedition.survexblock_set.all()
        for sb in survexblocks:
            # print(f"{sb=}")
            if sb.scanswallet == None:
                if sb.name != "rootblock":
                    svxwild.append(sb)
                    print(f"  WILD {sb.survexfile} {sb.date}")
                    wildlength += sb.legslength
                    sb.year = f"{expedition}"
                    people = SurvexPersonRole.objects.filter(survexblock=sb)
                    team = []
                    for p in people:
                        team.append(p.personname)
                    sb.team = team
    walletslength = 0.0
    if year:
        wallets = Wallet.objects.filter(walletyear__year=year)
        for w in wallets:
            for sb in w.survexblock_set.all():
                walletslength += sb.legslength
    if not year:
        year =  current_expo()
    return render(request, "survexfilewild.html",
        {"addupsurvexlength": addupsurvexlength / 1000, 
        "legsbyexpo": legsbyexpo, 
        "nsurvexlegs": addupsurvexlegs,
        "walletslength": walletslength,
        "wildlength": wildlength,
        "year":year,
        "svxwild": svxwild}
    )
    
def therionissues(request):
    """Page displaying contents of a file produced during data import"""
    logname = "therionrefs.log"
    logpath = Path(settings.PYTHON_PATH, logname)
    therionlog = []
    newlog = []

    if Path(logpath).is_file:
        try:
            with open(logpath, "r") as f:
                therionlog = f.readlines()
                print(f"{logpath} has {len(therionlog)} entries")
        except:
            msg = f"{logpath} EXCEPTION opening or reading therion logfile. Run a full reset."
            print(msg)
            return render(request, "therionreport.html", {"therionlog": newlog})
    else:
        print(f"{logpath} NOT FOUND: {len(therionlog)} entries")

    for line in therionlog:
        line = line.replace("! Un-parsed image filename:", "")
        newlog.append(line)
    return render(request, "therionreport.html", {"therionlog": newlog, "year": current_expo()})


def surveximport(request):
    """Page displaying contents of a file produced during data import"""
    logname = "svxlinear.log"
    logpath = Path(settings.PYTHON_PATH, logname)

    if Path(logpath).is_file:
        with open(logpath, "r") as f:
            contents = f.read()
    else:
        print(f"{logpath} NOT FOUND {len(contents)}")
    return render(request, "survexreport.html", {"log": contents, "year": current_expo()})


def survexdebug(request):
    """Page displaying contents of a file produced during data import"""
    logname = "svxblks.log"
    logpath = Path(settings.PYTHON_PATH, logname)

    if Path(logpath).is_file:
        with open(logpath, "r") as f:
            contents = f.read()
    else:
        print(f"{logpath} NOT FOUND {len(contents)}")
    return render(request, "survexdebug.html", {"log": contents, "year": current_expo()})


def pathsreport(request):
    """The CONSTANTs declared in the settings and localsettings and how they have
    been evaluated for this specific installation - live"""
    pathsdict = OrderedDict()
    try:
        pathsdict = {
            #       "BOGUS" : str( settings.BOGUS),
            "JSLIB_URL": str(settings.JSLIB_URL),
            "JSLIB_ROOT": str(settings.JSLIB_ROOT),
            #       "CSSLIB_URL" : str( settings.CSSLIB_URL),
            "CAVEDESCRIPTIONS": str(settings.CAVEDESCRIPTIONS),
            "DIR_ROOT": str(settings.DIR_ROOT),
            "ENTRANCEDESCRIPTIONS": str(settings.ENTRANCEDESCRIPTIONS),
            "EXPOUSER_EMAIL": str(settings.EXPOUSER_EMAIL),
            "EXPOUSERPASS": str("<redacted>"),
            "EXPOUSER": str(settings.EXPOUSER),
            "EXPOWEB": str(settings.EXPOWEB),
            # "EXPOWEB_URL": str(settings.EXPOWEB_URL),
            #       "FILES" : str( settings.FILES),
            "LIBDIR": str(settings.LIBDIR),
            "LOGFILE": str(settings.LOGFILE),
            "LOGIN_REDIRECT_URL": str(settings.LOGIN_REDIRECT_URL),
            "MEDIA_ROOT": str(settings.MEDIA_ROOT),
            "MEDIA_URL": str(settings.MEDIA_URL),
            "PHOTOS_URL": str(settings.PHOTOS_URL),
            "PHOTOS_ROOT": str(settings.PHOTOS_ROOT),
            "PYTHON_PATH": str(settings.PYTHON_PATH),
            "REPOS_ROOT_PATH": str(settings.REPOS_ROOT_PATH),
            "ROOT_URLCONF": str(settings.ROOT_URLCONF),
            "STATIC_URL": str(settings.STATIC_URL),
            "SURVEX_DATA": str(settings.SURVEX_DATA),
            "SCANS_ROOT": str(settings.SCANS_ROOT),
            #       "SURVEYS" : str( settings.SURVEYS),
            #       "SCANS_URL" : str( settings.SCANS_URL),
            "SURVEXPORT": str(settings.SURVEXPORT),
            "DRAWINGS_DATA": str(settings.DRAWINGS_DATA),
            "URL_ROOT": str(settings.URL_ROOT),
        }
    except:
        pathsdict["! EXCEPTION !"] = "missing or exta string constant in troggle/settings"

    pathstype = OrderedDict()
    try:
        pathstype = {
            #       "BOGUS" : type(settings.BOGUS),
            "JSLIB_URL": type(settings.JSLIB_URL),
            "JSLIB_ROOT": type(settings.JSLIB_ROOT),
            #       "CSSLIB_URL" : type(settings.CSSLIB_URL),
            "CAVEDESCRIPTIONS": type(settings.CAVEDESCRIPTIONS),
            "DIR_ROOT": type(settings.DIR_ROOT),
            "ENTRANCEDESCRIPTIONS": type(settings.ENTRANCEDESCRIPTIONS),
            "EXPOUSER_EMAIL": type(settings.EXPOUSER_EMAIL),
            "EXPOUSERPASS": type(settings.EXPOUSERPASS),
            "EXPOUSER": type(settings.EXPOUSER),
            "EXPOWEB": type(settings.EXPOWEB),
            # "EXPOWEB_URL": type(settings.EXPOWEB_URL),
            #       "FILES" : type(settings.FILES),
            "LIBDIR": type(settings.LIBDIR),
            "LOGFILE": type(settings.LOGFILE),
            "LOGIN_REDIRECT_URL": type(settings.LOGIN_REDIRECT_URL),
            "MEDIA_ROOT": type(settings.MEDIA_ROOT),
            "MEDIA_URL": type(settings.MEDIA_URL),
            "PHOTOS_ROOT": type(settings.PHOTOS_ROOT),
            "PHOTOS_URL": type(settings.PHOTOS_URL),
            "PYTHON_PATH": type(settings.PYTHON_PATH),
            "REPOS_ROOT_PATH": type(settings.REPOS_ROOT_PATH),
            "ROOT_URLCONF": type(settings.ROOT_URLCONF),
            "STATIC_URL": type(settings.STATIC_URL),
            "SURVEX_DATA": type(settings.SURVEX_DATA),
            "SCANS_ROOT": type(settings.SCANS_ROOT),
            #       "SURVEYS" : type(settings.SURVEYS),
            #       "SCANS_URL" : type(settings.SCANS_URL),
            "SURVEXPORT": type(settings.SURVEXPORT),
            "DRAWINGS_DATA": type(settings.DRAWINGS_DATA),
            "URL_ROOT": type(settings.URL_ROOT),
        }
    except:
        pathstype["! EXCEPTION !"] = "missing or exta string constant in troggle/settings"
        raise

    # settings are unique by paths are not
    ncodes = len(pathsdict)
    bycodeslist = sorted(pathsdict.items())  # a list of tuples
    bycodeslist2 = []

    for k, p in bycodeslist:
        bycodeslist2.append((k, p, str(pathstype[k])))

    bypaths = sorted(pathsdict.values())  # a list
    bypathslist = []

    for p in bypaths:
        for k in pathsdict.keys():
            if pathsdict[k] == p:
                bypathslist.append((p, k, str(pathstype[k])))
                del pathsdict[k]
                break

    return render(
        request,
        "pathsreport.html",
        {"pathsdict": pathsdict, "bycodeslist": bycodeslist2, "bypathslist": bypathslist, "ncodes": ncodes, "year": current_expo()},
    )


def stats(request):
    """Calculates number of survey blocks, the number of survey legs and the survey length for each year.
    This is only underground survey legs, but includes ARGE as well as Expo survex files.
    """
    statsDict = {}
    statsDict["expoCount"] = f"{Expedition.objects.count():,}"
    statsDict["caveCount"] = f"{Cave.objects.count():,}"
    statsDict["personCount"] = f"{Person.objects.count():,}"
    statsDict["logbookEntryCount"] = f"{LogbookEntry.objects.count():,}"

    legsbyexpo = []
    addupsurvexlength = 0.0
    addupsurvexlegs = 0
    for expedition in Expedition.objects.all():
        survexblocks = expedition.survexblock_set.all()
        legsyear = 0
        survexleglength = 0.0
        for survexblock in survexblocks:
            survexleglength += survexblock.legslength
            legsyear += int(survexblock.legsall)
        addupsurvexlength += survexleglength
        addupsurvexlegs += legsyear
        legsbyexpo.append((expedition, {"nsurvexlegs": legsyear, "survexleglength": survexleglength}))
    legsbyexpo.reverse()

    renderDict = {
        **statsDict,
        **{"addupsurvexlength": addupsurvexlength / 1000, "legsbyexpo": legsbyexpo, "nsurvexlegs": addupsurvexlegs, "year": current_expo()},
    }  # new syntax
    return render(request, "statistics.html", renderDict)


def dataissues(request):
    """Each issue has a parser, a message and a url linking to the offending object after loading
    
    This page happens to be the first one looked for, so if the server is offline, this is
    where the error happens."""

    def myFunc(di):
        return di.parser.lower() + di.message.lower()

    dilist = list(DataIssue.objects.all())
    dilist.sort(key=myFunc)

    try:
        return render(request, "dataissues.html", {"didict": dilist, "year": current_expo()})
    except:
        message = f'! - Server not online - please wait 5 minutes for database rebuild'
        print(message)
        return render(request, "errors/generic.html", {"message": message})        


def stations(request):
    """report each Northing/Easting pair wherever recorded"""
    ents = set()
    gpsents = set()
    
    def add_stations(e):
        try:
            ts = e.tag_station
            if ts:
                e.tag_ts = SurvexStation.objects.get(name=ts)
                #print(f"{e} {e.tag_ts} {e.tag_ts.lat()} {e.tag_ts.long()}")
      
                
            os = e.other_station
            if os:
                e.tag_os = SurvexStation.objects.get(name=os)
                #print(f"{e} {e.tag_os} {e.tag_os.lat()} {e.tag_os.long()}")
 
        except:
            e.tag_ss = None
            e.tag_es = None
            e.tag_os = None
            # print(f"exception for {e}")
                
    entrances = Entrance.objects.all()
    for e in entrances:
        if e.other_station:
            ents.add(e)
            add_stations(e)
         
    for e in entrances:
        if e.lat_wgs84 or e.long_wgs84:
            gpsents.add(e)        
            add_stations(e)
            
            
    stations = SurvexStation.objects.all() # NB these are NOT all the stations in troggle_import_root.pos

    return render(request, "stations.html", {"ents": ents, "gpsents": gpsents, "stations": stations, "year": current_expo()})


def aliases(request, year):
    """Page which displays a list of all the person aliases in a specific year"""

    if not year:
        year = 1998
    expo = Expedition.objects.filter(year=year)[0]  # returns a set, even though we know there is only one
    personexpeditions = PersonExpedition.objects.filter(expedition=expo)
    persons = list(Person.objects.all().order_by("last_name"))

    aliases = GetPersonExpeditionNameLookup(expo)

    aliasdict = {}
    for i in sorted(aliases):
        aliasdict[i] = aliases[i]
    invert = {}

    return render(
        request,
        "aliases.html",
        {
            "year": year,
            "aliasdict": aliasdict,
            "foreign_friends": foreign_friends,
            "invert": invert,
            "personexpeditions": personexpeditions,
            "persons": persons,
        },
    )