/* -*- Mode: JS; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

Module.unoTagSymbol = Symbol('unoTag');

Module.uno_init = new Promise(function (resolve, reject) {
    Module.uno_init$resolve = function() {
        Module.uno = init_unoembind_uno(Module, Module.unoTagSymbol);
        resolve();
    };
    Module.uno_init$reject = reject;
});

Module.uno_main = new Promise(function (resolve, reject) {
    Module.uno_main$resolve = resolve;
    Module.uno_main$reject = reject;
});

Module.catchUnoException = function(exception) {
    // Rethrow non-C++ exceptions (non-UNO C++ exceptions are mapped to css.uno.RuntimeException in
    // Module.getUnoExceptionFromCxaException):
    if (!(exception instanceof WebAssembly.Exception && exception.is(getCppExceptionTag()))) {
        throw exception;
    }
    const any = Module.getUnoExceptionFromCxaException(
        getCppExceptionThrownObjectFromWebAssemblyException(exception));
    decrementExceptionRefcount(exception);
    return any;
}

Module.unoObject = function(interfaces, obj) {
    interfaces = ['com.sun.star.lang.XTypeProvider'].concat(interfaces);
    obj.impl_refcount = 0;
    obj.queryInterface = function(type) {
        for (const i in obj.impl_typemap) {
            if (i === type.toString()) {
                const ifc = Module['uno_Type_' + i.replace(/\./g, '$')].reference(
                    obj.impl_interfaces[obj.impl_typemap[i]]);
                try {
                    return new Module.uno_Any(type, ifc);
                } finally {
                    ifc.delete();
                }
            }
        }
        const ty = Module.uno_Type.Void();
        const ret = new Module.uno_Any(ty, undefined);
        ty.delete();
        return ret;
    };
    obj.acquire = function() { ++obj.impl_refcount; };
    obj.release = function() {
        if (--obj.impl_refcount === 0) {
            for (const i in obj.impl_interfaces) {
                obj.impl_interfaces[i].delete();
            }
        }
    };
    obj.getTypes = function() {
        const types = new Module.uno_Sequence_type(interfaces.length, Module.uno_Sequence.FromSize);
        for (let i = 0; i !== interfaces.length; ++i) {
            const type = Module.uno_Type.Interface(interfaces[i]);
            types.set(i, type);
            type.delete();
        }
        return types;
    };
    obj.getImplementationId = function() { return new Module.uno_Sequence_byte([]) };
    obj.impl_interfaces = {};
    interfaces.forEach((i) => {
        obj.impl_interfaces[i] = Module['uno_Type_' + i.replace(/\./g, '$')].implement(obj);
    });
    obj.impl_typemap = {};
    const walk = function(td, impl) {
        const name = td.getName();
        if (!Object.hasOwn(obj.impl_typemap, name)) {
            if (td.getTypeClass() != Module.uno.com.sun.star.uno.TypeClass.INTERFACE) {
                throw new Error('not a UNO interface type: ' + name);
            }
            obj.impl_typemap[name] = impl;
            const itd = Module.uno.com.sun.star.reflection.XInterfaceTypeDescription2.query(td);
            const bases = itd.getBaseTypes();
            itd.delete();
            for (let i = 0; i !== bases.size(); ++i) {
                walk(bases.get(i), impl);
            }
            bases.delete();
        }
        td.delete();
    };
    const ctx = Module.getUnoComponentContext();
    const tdmAny = ctx.getValueByName(
        '/singletons/com.sun.star.reflection.theTypeDescriptionManager');
    ctx.delete();
    const ifc = tdmAny.get();
    tdmAny.delete();
    const tdm = Module.uno.com.sun.star.container.XHierarchicalNameAccess.query(ifc);
    ifc.delete();
    interfaces.forEach((i) => {
        const td = tdm.getByHierarchicalName(i);
        const ifc = td.get();
        td.delete();
        walk(Module.uno.com.sun.star.reflection.XTypeDescription.query(ifc), i);
        ifc.delete();
    })
    tdm.delete();
    return Module.uno.com.sun.star.uno.XInterface.reference(
        obj.impl_interfaces[obj.impl_typemap['com.sun.star.uno.XInterface']]);
};

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