"""
Silique (https://www.silique.fr)
Copyright (C) 2025

distribued with GPL-2 or later license

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
"""

from subprocess import run
from json import loads
from os import environ
from shutil import which


from rougail.error import ExtentionError
from .i18n import _


class RougailUserDataBitwarden:

    def __init__(
        self,
        config: "Config",
        *,
        rougailconfig: "RougailConfig" = None,
    ):
        # this is the tiramisu config object
        self.config = config
        if rougailconfig is None:
            from rougail.config import RougailConfig

            rougailconfig = RougailConfig
            user_data = rougailconfig["step.user_data"]
            if "bitwarden" not in user_data:
                user_data.append("bitwarden")
                rougailconfig["step.user_data"] = user_data
        user_data = rougailconfig["step.user_data"]
        self.rougailconfig = rougailconfig
        if "bitwarden" not in user_data:
            raise ExtentionError(_('"bitwarden" is not set in step.user_data'))
        self.errors = []
        self.warnings = []
        self.leader_informations = {}
        self.bitwarden_command_line = self.get_command(rougailconfig)

    def get_command(self, rougailconfig):
        if "ROUGAIL_BITWARDEN_MOCK_ENABLE" in environ:
            return None
        one_is_find = False
        force_command = rougailconfig["bitwarden.command"]
        if force_command:
            commands = [force_command]
        else:
            commands = ["rbw", "bw"]
        for command in commands:
            status = self.test_command(command)
            if status is False:
                one_is_find = True
            elif status:
                return command
        if not force_command:
            command_string = _('"rbw" or "bw"')
        else:
            command_string = _('"{0}"').format(force_command)
        if one_is_find:
            raise ExtentionError(
                _("please unlock Bitwarden password database with {0}").format(
                    command_string
                )
            )
        raise ExtentionError(
            _("cannot find Bitwarden command {0} please install it").format(
                command_string
            )
        )

    def test_command(self, command):
        if not which(command):
            return None
        if command == "rbw":
            cmd = ["rbw", "unlocked"]
        else:
            cmd = ["bw", "status"]
        try:
            cpe = run(cmd, capture_output=True)
        except Exception as exc:
            return False
        if cpe.returncode != 0:
            return False
        if command == "rbw":
            return True
        try:
            data = loads(cpe.stdout.decode("utf8"))
            if data["status"] == "unlocked":
                return True
        except:
            pass
        return False

    def run(self):
        values = {}
        self.set_passwords(self.config.forcepermissive, values)
        return [
            {
                "source": 'Bitwarden',
                "errors": self.errors,
                "warnings": self.warnings,
                "values": values,
                "options": {
                    "secret_manager": True,
                }
            }
        ]

    def set_passwords(self, optiondescription, values):
        for option in optiondescription.list(uncalculated=True):
            if option.isoptiondescription():
                self.set_passwords(option, values)
            elif option.information.get("bitwarden", False):
                values[option.path()] = (set_password, self.leader_informations, self.bitwarden_command_line)


def set_password(leader_informations, bitwarden_command_line, *, option, warnings, errors):
    path = option.path()
    leader_key = None
    if option.isfollower():
        leader_path = option.parent().leader().path()
        if leader_path in leader_informations:
            leader_key = leader_informations[leader_path][option.index()]
    if not option.isleader():
        return get_values(bitwarden_command_line, option, warnings, errors, leader_key=leader_key)
    leader_informations[path], option_values = get_values(
        bitwarden_command_line, option, warnings, errors, multiple=True, leader_key=option.value.default()[0]
    )
    return option_values


def get_values(bitwarden_command_line, option, warnings, errors, *, multiple=False, leader_key=None):
    if leader_key:
        key = leader_key
    else:
        key = option.value.default()
    path = option.path()
    type_ = option.information.get("type")
    # FIXME retrait du permissive suffit ?
    if "validator" not in option.property.get():
        option.property.add("validator")
    if not isinstance(key, str):
        errors.append(
            _('the default value for "{0}" must be the Bitwarden item name').format(
                path
            )
        )
        if multiple:
            return [], []
        return None
    if "ROUGAIL_BITWARDEN_MOCK_ENABLE" in environ:
        if type_ == "secret":
            value = "Ex4mpL3_P4ssw0rD"
        else:
            value = "example_login"
        if multiple:
            return [key], [value]
        return value
    try:
        if bitwarden_command_line == "rbw":
            data = get_key_from_rbw(key, multiple)
        else:
            data = get_key_from_bw(key)

    except Exception as exc:
        errors.append(
            _(
                'cannot execute the "{0}" commandline from Bitwarden for "{1}": {2}'
            ).format(bitwarden_command_line, path, exc)
        )
        if multiple:
            return [], []
        return None
    if not data:
        errors.append(
            _('item "{0}" in Bitwarden is not found for "{1}"').format(
                key, path
            )
        )
        if multiple:
            return [], []
        return None
    if len(data) != 1:
        names = [d["name"] for d in data]
        if multiple:
            ret = []
            return names, [
                get_value(key, path, type_, d, errors) for d in data
            ]
        errors.append(
            _(
                'several items found with name "{0}" in Bitwarden for "{1}": "{2}"'
            ).format(key, path, '", "'.join(names))
        )
        return None
    value = get_value(key, path, type_, data[0], errors)
    if multiple:
        return [data[0]["name"]], [value]
    return value


def get_value( key_bitwarden: str, path: str, type_: str, data: dict, errors: dict) -> str:
    try:
        if type_ == "secret":
            value = data["login"]["password"]
        else:
            value = data["login"]["username"]
    except Exception as exc:
        errors.append(
            _('unexpected datas "{0}" from Bitwarden for "{1}": {2}').format(
                key_bitwarden, path, exc
            )
        )
        value = None
    else:
        if value is None:
            if type_ == "secret":
                bw_type = _("password")
            else:
                bw_type = _("username")
            errors.append(
                _('item "{0}" in Bitwarden has no {1} for "{2}"').format(
                    key_bitwarden, bw_type, path
                )
            )
    return value


def get_key_from_rbw(
    key_bitwarden: str, multiple: bool
    ):
    keys = []
    items = run_commandline(["rbw", "search", key_bitwarden]).strip()
    if items:
        items = items.split("\n")
    else:
        items = []
    for item in items:
        # if item.count('@') != 1:
        #    continue
        if "@" in item:
            keys.append(item.split("@", 1)[-1])
        else:
            keys.append(item.rsplit("/", 1)[-1])
    if not multiple:
        if not items:
            return []
        if len(items) > 1:
            return [{"name": key} for key in keys]
        keys = [key_bitwarden]
    datas = []
    for key in keys:
        data = loads(
            run_commandline(
                ["rbw", "get", key, "--raw", "--ignorecase"]
            ).strip()
        )
        datas.append({"name": key, "login": data["data"]})
    return datas


def get_key_from_bw(
        key_bitwarden: str,
    ):
    return loads(
        run_commandline(
            ["bw", "list", "items", "--search", key_bitwarden, "--nointeraction"]
        )
    )


def run_commandline(cmd) -> str:
    cpe = run(cmd, capture_output=True)
    err = cpe.stderr.decode("utf8")
    if cpe.returncode != 0 or err:
        raise Exception("{0} ({1})".format(err, cpe.returncode))
    return cpe.stdout.decode("utf8")