import json

from django.conf import settings

from .encoder import LazyEncoder

DEFAULT_OPTS = {
    "showConfirmButton": False,
    "timer": 2500,
    "allowOutsideClick": True,
    "confirmButtonText": "OK",
}


def _flash_config(request, opts):
    request.session["sweetify"] = json.dumps(opts, cls=LazyEncoder)


def _flash_multiple_configs(request, json_data):
    request.session["sweetify"] = json_data


def _treat_data(opts):
    button = opts.pop("button", None)
    if button:
        opts["showConfirmButton"] = True

        if isinstance(button, str):
            opts["confirmButtonText"] = button

    persistent = opts.pop("persistent", None)
    if persistent:
        opts["showConfirmButton"] = True
        opts["allowOutsideClick"] = False
        opts["timer"] = None

        if isinstance(persistent, str):
            opts["confirmButtonText"] = persistent

    # sweetalert changes
    if getattr(settings, "SWEETIFY_SWEETALERT_LIBRARY", "sweetalert2") == "sweetalert":
        opts["closeOnClickOutside"] = opts.pop("allowOutsideClick", None)

        if opts.pop("showConfirmButton", False):
            opts["button"] = opts["confirmButtonText"]
        else:
            opts["button"] = False
    return opts


def sweetalert(request, title, **kwargs):
    opts = DEFAULT_OPTS.copy()
    opts.update(kwargs)
    opts["title"] = title
    opts = _treat_data(opts)
    _flash_config(request, opts)


def toast(request, title, icon="success", **kwargs):
    if getattr(settings, "SWEETIFY_SWEETALERT_LIBRARY", "sweetalert2") == "sweetalert":
        raise RuntimeError("toasts are currently not supported in sweetalert")

    kwargs["icon"] = icon
    kwargs["toast"] = True
    kwargs.setdefault("position", "top-end")
    kwargs.setdefault("timerProgressBar", True)
    return sweetalert(request, title, **kwargs)


def info(request, title, **kwargs):
    kwargs["icon"] = "info"
    return sweetalert(request, title, **kwargs)


def success(request, title, **kwargs):
    kwargs["icon"] = "success"
    return sweetalert(request, title, **kwargs)


def error(request, title, **kwargs):
    kwargs["icon"] = "error"
    return sweetalert(request, title, **kwargs)


def warning(request, title, **kwargs):
    kwargs["icon"] = "warning"
    return sweetalert(request, title, **kwargs)


def multiple(request, *args):
    optsls = []
    for dictionary in args:
        opts = DEFAULT_OPTS.copy()
        opts.update(dictionary)
        opts = _treat_data(opts)
        optsls.append(json.dumps(opts, cls=LazyEncoder))
    _flash_multiple_configs(request, optsls)