# -*- mode: python -*-
# -*- coding: utf-8 -*-

##############################################################################
#
# Gestion scolarite IUT
#
# Copyright (c) 1999 - 2023 Emmanuel Viennet.  All rights reserved.
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#   Emmanuel Viennet      emmanuel.viennet@viennet.net
#
##############################################################################

"""Edition des PV de jury

PV Jury IUTV 2006: on détaillait 8 cas:
Jury de semestre n
    On a 8 types de décisions:
    Passages:
    1. passage de ceux qui ont validés Sn-1
    2. passage avec compensation Sn-1, Sn
    3. passage sans validation de Sn avec validation d'UE
    4. passage sans validation de Sn sans validation d'UE

    Redoublements:
    5. redoublement de Sn-1 et Sn sans validation d'UE pour Sn
    6. redoublement de Sn-1 et Sn avec validation d'UE pour Sn

    Reports
    7. report sans validation d'UE

    8. non validation de Sn-1 et Sn et non redoublement
"""

import time
from reportlab.platypus import Paragraph
from reportlab.lib import styles

import flask
from flask import flash, redirect, url_for
from flask import g, request

from app.models import (
    Formation,
    FormSemestre,
    ScolarAutorisationInscription,
)
from app.models.etudiants import Identite

import app.scodoc.sco_utils as scu
import app.scodoc.notesdb as ndb
from app.scodoc import html_sco_header
from app.scodoc import codes_cursus
from app.scodoc import sco_dict_pv_jury
from app.scodoc import sco_etud
from app.scodoc import sco_formsemestre
from app.scodoc import sco_groups
from app.scodoc import sco_groups_view
from app.scodoc import sco_pdf
from app.scodoc import sco_preferences
from app.scodoc import sco_pvpdf
from app.scodoc.gen_tables import GenTable
from app.scodoc.codes_cursus import NO_SEMESTRE_ID
from app.scodoc.sco_pdf import PDFLOCK
from app.scodoc.TrivialFormulator import TrivialFormulator


def _descr_decision_sem_abbrev(etat, decision_sem):
    "résumé textuel tres court (code) de la décision de semestre"
    if etat == "D":
        decision = "Démission"
    else:
        if decision_sem:
            decision = decision_sem["code"]
        else:
            decision = ""
    return decision


def pvjury_table(
    dpv,
    only_diplome=False,
    anonymous=False,
    with_parcours_decisions=False,
    with_paragraph_nom=False,  # cellule paragraphe avec nom, date, code NIP
):
    """idem mais rend list de dicts
    Si only_diplome, n'extrait que les etudiants qui valident leur diplome.
    """
    sem = dpv["formsemestre"]
    formsemestre_id = sem["formsemestre_id"]
    sem_id_txt_sp = sem["sem_id_txt"]
    if sem_id_txt_sp:
        sem_id_txt_sp = " " + sem_id_txt_sp
    titles = {
        "etudid": "etudid",
        "code_nip": "NIP",
        "nomprenom": "Nom",  # si with_paragraph_nom, sera un Paragraph
        "parcours": "Parcours",
        "decision": "Décision" + sem_id_txt_sp,
        "mention": "Mention",
        "ue_cap": "UE" + sem_id_txt_sp + " capitalisées",
        "ects": "ECTS",
        "devenir": "Devenir",
        "validation_parcours_code": "Résultat au diplôme",
        "observations": "Observations",
    }
    if anonymous:
        titles["nomprenom"] = "Code"
    columns_ids = ["nomprenom", "parcours"]

    if with_parcours_decisions:
        all_idx = set()
        for e in dpv["decisions"]:
            all_idx |= set(e["parcours_decisions"].keys())
        sem_ids = sorted(all_idx)
        for i in sem_ids:
            if i != NO_SEMESTRE_ID:
                titles[i] = "S%d" % i
            else:
                titles[i] = "S"  # pas très parlant ?
            columns_ids += [i]

    if dpv["has_prev"]:
        id_prev = sem["semestre_id"] - 1  # numero du semestre precedent
        titles["prev_decision"] = f"Décision S{id_prev}"
        columns_ids += ["prev_decision"]

    if not dpv["is_apc"]:
        # Décision de jury sur le semestre, sauf en BUT
        columns_ids += ["decision"]

    if sco_preferences.get_preference("bul_show_mention", formsemestre_id):
        columns_ids += ["mention"]
    columns_ids += ["ue_cap"]
    if sco_preferences.get_preference("bul_show_ects", formsemestre_id):
        columns_ids += ["ects"]

    # XXX if not dpv["semestre_non_terminal"]:
    # La colonne doit être présente: redoublants validant leur diplome
    # en répétant un semestre ancien: exemple: S1 (ADM), S2 (ADM), S3 (AJ), S4 (ADM), S3 (ADM)=> diplôme
    columns_ids += ["validation_parcours_code"]
    columns_ids += ["devenir"]
    columns_ids += ["observations"]

    lines = []
    for e in dpv["decisions"]:
        sco_etud.format_etud_ident(e["identite"])
        l = {
            "etudid": e["identite"]["etudid"],
            "code_nip": e["identite"]["code_nip"],
            "nomprenom": e["identite"]["nomprenom"],
            "_nomprenom_target": url_for(
                "scolar.ficheEtud",
                scodoc_dept=g.scodoc_dept,
                etudid=e["identite"]["etudid"],
            ),
            "_nomprenom_td_attrs": f"""id="{e['identite']['etudid']}" class="etudinfo" """,
            "parcours": e["parcours"],
            "decision": _descr_decision_sem_abbrev(e["etat"], e["decision_sem"]),
            "ue_cap": e["decisions_ue_descr"],
            "validation_parcours_code": "ADM" if e["validation_parcours"] else "",
            "devenir": e["autorisations_descr"],
            "observations": ndb.unquote(e["observation"]),
            "mention": e["mention"],
            "ects": str(e["sum_ects"]),
        }
        if with_paragraph_nom:
            cell_style = styles.ParagraphStyle({})
            cell_style.fontSize = sco_preferences.get_preference(
                "SCOLAR_FONT_SIZE", formsemestre_id
            )
            cell_style.fontName = sco_preferences.get_preference(
                "PV_FONTNAME", formsemestre_id
            )
            cell_style.leading = 1.0 * sco_preferences.get_preference(
                "SCOLAR_FONT_SIZE", formsemestre_id
            )  # vertical space
            i = e["identite"]
            l["nomprenom"] = [
                Paragraph(sco_pdf.SU(i["nomprenom"]), cell_style),
                Paragraph(sco_pdf.SU(i["code_nip"]), cell_style),
                Paragraph(
                    sco_pdf.SU(
                        "Né le %s" % i["date_naissance"]
                        + (" à %s" % i["lieu_naissance"] if i["lieu_naissance"] else "")
                        + (" (%s)" % i["dept_naissance"] if i["dept_naissance"] else "")
                    ),
                    cell_style,
                ),
            ]
        if anonymous:
            # Mode anonyme: affiche INE ou sinon NIP, ou id
            l["nomprenom"] = (
                e["identite"]["code_ine"]
                or e["identite"]["code_nip"]
                or e["identite"]["etudid"]
            )
        if with_parcours_decisions:
            for i in e[
                "parcours_decisions"
            ]:  # or equivalently: l.update(e['parcours_decisions'])
                l[i] = e["parcours_decisions"][i]

        if e["validation_parcours"]:
            l["devenir"] = "Diplôme obtenu"
        if dpv["has_prev"]:
            l["prev_decision"] = _descr_decision_sem_abbrev(
                None, e["prev_decision_sem"]
            )
        if e["validation_parcours"] or not only_diplome:
            lines.append(l)
    return lines, titles, columns_ids


# XXX TODO cette page a vocation a disparaitre,
# remplacée par formsemestre_recapcomplet en mode jury (déjà le cas pour les BUT)
def formsemestre_pvjury(formsemestre_id, format="html", publish=True):  # XXX
    """Page récapitulant les décisions de jury"""
    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
    is_apc = formsemestre.formation.is_apc()
    if format == "html" and is_apc:
        return redirect(
            url_for(
                "notes.formsemestre_recapcomplet",
                scodoc_dept=g.scodoc_dept,
                formsemestre_id=formsemestre_id,
                mode_jury=1,
            )
        )

    footer = html_sco_header.sco_footer()

    dpv = sco_dict_pv_jury.dict_pvjury(formsemestre_id, with_prev=True)
    if not dpv:
        if format == "html":
            return (
                html_sco_header.sco_header()
                + "<h2>Aucune information disponible !</h2>"
                + footer
            )
        else:
            return None
    sem = dpv["formsemestre"]
    formsemestre_id = sem["formsemestre_id"]

    rows, titles, columns_ids = pvjury_table(dpv)
    if format != "html" and format != "pdf":
        columns_ids = ["etudid", "code_nip"] + columns_ids

    tab = GenTable(
        rows=rows,
        titles=titles,
        columns_ids=columns_ids,
        filename=scu.make_filename("decisions " + sem["titreannee"]),
        origin="Généré par %s le " % scu.sco_version.SCONAME
        + scu.timedate_human_repr()
        + "",
        caption="Décisions jury pour " + sem["titreannee"],
        html_class="table_leftalign",
        html_sortable=True,
        preferences=sco_preferences.SemPreferences(formsemestre_id),
    )
    if format != "html":
        return tab.make_page(
            format=format,
            with_html_headers=False,
            publish=publish,
        )
    tab.base_url = "%s?formsemestre_id=%s" % (request.base_url, formsemestre_id)
    H = [
        html_sco_header.html_sem_header(
            "Décisions du jury pour le semestre",
            init_qtip=True,
            javascripts=["js/etud_info.js"],
        ),
        """<p>(dernière modif le %s)</p>""" % dpv["date"],
    ]

    H.append(
        '<ul><li><a class="stdlink" href="formsemestre_lettres_individuelles?formsemestre_id=%s">Courriers individuels (classeur pdf)</a></li>'
        % formsemestre_id
    )
    H.append(
        '<li><a class="stdlink" href="formsemestre_pvjury_pdf?formsemestre_id=%s">PV officiel (pdf)</a></li></ul>'
        % formsemestre_id
    )

    H.append(tab.html())

    # Count number of cases for each decision
    counts = scu.DictDefault()
    for row in rows:
        counts[row["decision"]] += 1
        # add codes for previous (for explanation, without count)
        if "prev_decision" in row and row["prev_decision"]:
            counts[row["prev_decision"]] += 0
    # Légende des codes
    codes = list(counts.keys())
    codes.sort()
    H.append("<h3>Explication des codes</h3>")
    lines = []
    for code in codes:
        lines.append(
            {
                "code": code,
                "count": counts[code],
                "expl": codes_cursus.CODES_EXPL.get(code, ""),
            }
        )

    H.append(
        GenTable(
            rows=lines,
            titles={"code": "Code", "count": "Nombre", "expl": ""},
            columns_ids=("code", "count", "expl"),
            html_class="table_leftalign",
            html_sortable=True,
            preferences=sco_preferences.SemPreferences(formsemestre_id),
        ).html()
    )
    H.append("<p></p>")  # force space at bottom
    return "\n".join(H) + footer


# ---------------------------------------------------------------------------


def formsemestre_pvjury_pdf(formsemestre_id, group_ids: list[int] = None, etudid=None):
    """Generation PV jury en PDF: saisie des paramètres
    Si etudid, PV pour un seul etudiant. Sinon, tout les inscrits au groupe indiqué.
    """
    group_ids = group_ids or []
    formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
    # Mise à jour des groupes d'étapes:
    sco_groups.create_etapes_partition(formsemestre_id)
    groups_infos = None
    if etudid:
        # PV pour ce seul étudiant:
        etud = Identite.query.get_or_404(etudid)
        etuddescr = f"""<a class="discretelink" href="{
            url_for("notes.ficheEtud", scodoc_dept=g.scodoc_dept, etudid=etudid)
        }">{etud.nomprenom}</a>"""
        etudids = [etudid]
    else:
        etuddescr = ""
        if not group_ids:
            # tous les inscrits du semestre
            group_ids = [sco_groups.get_default_group(formsemestre_id)]

        groups_infos = sco_groups_view.DisplayedGroupsInfos(
            group_ids, formsemestre_id=formsemestre_id
        )
        etudids = [m["etudid"] for m in groups_infos.members]

    H = [
        html_sco_header.html_sem_header(
            f"Édition du PV de jury {etuddescr}",
            javascripts=sco_groups_view.JAVASCRIPTS,
            cssstyles=sco_groups_view.CSSSTYLES,
            init_qtip=True,
        ),
        f"""<div class="help">Utiliser cette page pour éditer des versions provisoires des PV.
          <span class="fontred">Il est recommandé d'archiver les versions définitives:
           <a class="stdlink" href="{url_for(
            'notes.formsemestre_archive',
            scodoc_dept=g.scodoc_dept, formsemestre_id=formsemestre_id)
          }">voir cette page</a></span>
          </div>""",
    ]
    F = [
        """<p><em>Voir aussi si besoin les réglages sur la page "Paramétrage"
        (accessible à l'administrateur du département).</em>
        </p>""",
        html_sco_header.sco_footer(),
    ]
    descr = descrform_pvjury(formsemestre)
    if etudid:
        descr.append(("etudid", {"input_type": "hidden"}))

    if groups_infos:
        menu_choix_groupe = (
            """<div class="group_ids_sel_menu">Groupes d'étudiants à lister sur le PV: """
            + sco_groups_view.menu_groups_choice(groups_infos)
            + """</div>"""
        )
    else:
        menu_choix_groupe = ""  # un seul etudiant à editer
    tf = TrivialFormulator(
        request.base_url,
        scu.get_request_args(),
        descr,
        cancelbutton="Annuler",
        method="get",
        submitlabel="Générer document",
        name="tf",
        formid="group_selector",
        html_foot_markup=menu_choix_groupe,
    )
    if tf[0] == 0:
        return "\n".join(H) + "\n" + tf[1] + "\n".join(F)
    elif tf[0] == -1:
        return flask.redirect(
            url_for(
                "notes.formsemestre_pvjury",
                scodoc_dept=g.scodoc_dept,
                formsemestre_id=formsemestre_id,
            )
        )
    else:
        # submit
        tf[2]["show_title"] = bool(tf[2]["show_title"])
        tf[2]["anonymous"] = bool(tf[2]["anonymous"])
        try:
            PDFLOCK.acquire()
            pdfdoc = sco_pvpdf.pvjury_pdf(
                formsemestre,
                etudids,
                numero_arrete=tf[2]["numero_arrete"],
                code_vdi=tf[2]["code_vdi"],
                date_commission=tf[2]["date_commission"],
                date_jury=tf[2]["date_jury"],
                show_title=tf[2]["show_title"],
                pv_title=tf[2]["pv_title"],
                with_paragraph_nom=tf[2]["with_paragraph_nom"],
                anonymous=tf[2]["anonymous"],
            )
        finally:
            PDFLOCK.release()
        date_iso = time.strftime("%Y-%m-%d")
        if groups_infos:
            groups_filename = "-" + groups_infos.groups_filename
        else:
            groups_filename = ""
        filename = f"""PV-{formsemestre.titre_num()}{groups_filename}-{date_iso}.pdf"""
        return scu.sendPDFFile(pdfdoc, filename)


def descrform_pvjury(formsemestre: FormSemestre):
    """Définition de formulaire pour PV jury PDF"""
    f_dict = formsemestre.formation.to_dict()
    return [
        (
            "date_commission",
            {
                "input_type": "text",
                "size": 50,
                "title": "Date de la commission",
                "explanation": "(format libre)",
            },
        ),
        (
            "date_jury",
            {
                "input_type": "text",
                "size": 50,
                "title": "Date du Jury",
                "explanation": "(si le jury a eu lieu)",
            },
        ),
        (
            "numero_arrete",
            {
                "input_type": "text",
                "size": 50,
                "title": "Numéro de l'arrêté du président",
                "explanation": "le président de l'Université prend chaque année un arrêté formant les jurys",
            },
        ),
        (
            "code_vdi",
            {
                "input_type": "text",
                "size": 15,
                "title": "VDI et Code",
                "explanation": "VDI et code du diplôme Apogée (format libre, n'est pas vérifié par ScoDoc)",
            },
        ),
        (
            "pv_title",
            {
                "input_type": "text",
                "size": 64,
                "title": "Titre du PV",
                "explanation": "par défaut, titre officiel de la formation",
                "default": f_dict["titre_officiel"],
            },
        ),
        (
            "show_title",
            {
                "input_type": "checkbox",
                "title": "Indiquer en plus le titre du semestre sur le PV",
                "explanation": f'(le titre est "{formsemestre.titre}")',
                "labels": [""],
                "allowed_values": ("1",),
            },
        ),
        (
            "with_paragraph_nom",
            {
                "input_type": "boolcheckbox",
                "title": "Avec date naissance et code",
                "explanation": "ajoute informations sous le nom",
                "default": True,
            },
        ),
        (
            "anonymous",
            {
                "input_type": "checkbox",
                "title": "PV anonyme",
                "explanation": "remplace nom par code étudiant (INE ou NIP)",
                "labels": [""],
                "allowed_values": ("1",),
            },
        ),
        ("formsemestre_id", {"input_type": "hidden"}),
    ]


def formsemestre_lettres_individuelles(formsemestre_id, group_ids=[]):
    "Lettres avis jury en PDF"
    formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
    if not group_ids:
        # tous les inscrits du semestre
        group_ids = [sco_groups.get_default_group(formsemestre_id)]
    groups_infos = sco_groups_view.DisplayedGroupsInfos(
        group_ids, formsemestre_id=formsemestre_id
    )
    etudids = [m["etudid"] for m in groups_infos.members]

    H = [
        html_sco_header.html_sem_header(
            "Édition des lettres individuelles",
            javascripts=sco_groups_view.JAVASCRIPTS,
            cssstyles=sco_groups_view.CSSSTYLES,
            init_qtip=True,
        ),
        f"""<p class="help">Utiliser cette page pour éditer des versions provisoires des PV.
          <span class="fontred">Il est recommandé d'archiver les versions définitives: <a 
          href="{url_for(
                "notes.formsemestre_archive",
                scodoc_dept=g.scodoc_dept,
                formsemestre_id=formsemestre_id,
            )}"
          >voir cette page</a></span></p>
         """,
    ]
    F = html_sco_header.sco_footer()
    descr = descrform_lettres_individuelles()
    menu_choix_groupe = (
        """<div class="group_ids_sel_menu">Groupes d'étudiants à lister: """
        + sco_groups_view.menu_groups_choice(groups_infos)
        + """</div>"""
    )

    tf = TrivialFormulator(
        request.base_url,
        scu.get_request_args(),
        descr,
        cancelbutton="Annuler",
        method="POST",
        submitlabel="Générer document",
        name="tf",
        formid="group_selector",
        html_foot_markup=menu_choix_groupe,
    )
    if tf[0] == 0:
        return "\n".join(H) + "\n" + tf[1] + F
    elif tf[0] == -1:
        return flask.redirect(
            url_for(
                "notes.formsemestre_pvjury",
                scodoc_dept=g.scodoc_dept,
                formsemestre_id=formsemestre_id,
            )
        )
    else:
        # submit
        sf = tf[2]["signature"]
        signature = sf.read()  # image of signature
        try:
            PDFLOCK.acquire()
            pdfdoc = sco_pvpdf.pdf_lettres_individuelles(
                formsemestre_id,
                etudids=etudids,
                date_jury=tf[2]["date_jury"],
                date_commission=tf[2]["date_commission"],
                signature=signature,
            )
        finally:
            PDFLOCK.release()
        if not pdfdoc:
            flash("Aucun étudiant n'a de décision de jury !")
            return flask.redirect(
                url_for(
                    "notes.formsemestre_status",
                    scodoc_dept=g.scodoc_dept,
                    formsemestre_id=formsemestre_id,
                )
            )

        groups_filename = "-" + groups_infos.groups_filename
        filename = f"""lettres-{formsemestre.titre_num()}{groups_filename}-{time.strftime("%Y-%m-%d")}.pdf"""
        return scu.sendPDFFile(pdfdoc, filename)


def descrform_lettres_individuelles():
    return [
        (
            "date_commission",
            {
                "input_type": "text",
                "size": 50,
                "title": "Date de la commission",
                "explanation": "(format libre)",
            },
        ),
        (
            "date_jury",
            {
                "input_type": "text",
                "size": 50,
                "title": "Date du Jury",
                "explanation": "(si le jury a eu lieu)",
            },
        ),
        (
            "signature",
            {
                "input_type": "file",
                "size": 30,
                "explanation": "optionnel: image scannée de la signature",
            },
        ),
        ("formsemestre_id", {"input_type": "hidden"}),
    ]