"use strict";

const test       = require('tape');
const beautify   = require('js-beautify').js_beautify;

const tests      = require("./tests.js");
const getState   = tests.getState;
const toByteCode = tests.toByteCode;

const VM         = require("../src/lvm.js");
const ldo        = require("../src/ldo.js");
const lapi       = require("../src/lapi.js");
const lauxlib    = require("../src/lauxlib.js");
const lua        = require('../src/lua.js');
const linit      = require('../src/linit.js');
const lstate     = require('../src/lstate.js');
const CT         = lua.constant_types;

const inttable2array = function(t) {
    let a = [];

    t.forEach(function (v, k) {
        if (typeof k === 'number')
            a[k] = v;
    });

    return a.map(e => e.value);
};

test('table.concat', function (t) {
    let luaCode = `
        return table.concat({1, 2, 3, 4, 5, 6, 7}, ",", 3, 5)
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.concat", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.strictEqual(
        lapi.lua_tostring(L, -1),
        "3,4,5",
        "Correct element(s) on the stack"
    );
});


test('table.pack', function (t) {
    let luaCode = `
        return table.pack(1, 2, 3)
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.pack", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        [...lapi.lua_topointer(L, -1).entries()]
            .filter(e => typeof e[0] === 'number') // Filter out the 'n' field
            .map(e => e[1].value).reverse(),
        [1, 2, 3],
        "Correct element(s) on the stack"
    );
});


test('table.unpack', function (t) {
    let luaCode = `
        return table.unpack({1, 2, 3, 4, 5}, 2, 4)
    `, L;
    
    t.plan(4);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.unpack", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.strictEqual(
        lapi.lua_tointeger(L, -3),
        2,
        "Correct element(s) on the stack"
    );

    t.strictEqual(
        lapi.lua_tointeger(L, -2),
        3,
        "Correct element(s) on the stack"
    );

    t.strictEqual(
        lapi.lua_tointeger(L, -1),
        4,
        "Correct element(s) on the stack"
    );
});


test('table.insert', function (t) {
    let luaCode = `
        local t = {1, 3, 4}
        table.insert(t, 5)
        table.insert(t, 2, 2)
        return t
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.insert", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        [...lapi.lua_topointer(L, -1).entries()]
            .filter(e => typeof e[0] === 'number')
            .map(e => e[1].value).sort(),
        [1, 2, 3, 4, 5],
        "Correct element(s) on the stack"
    );
});


test('table.remove', function (t) {
    let luaCode = `
        local t = {1, 2, 3, 3, 4, 4}
        table.remove(t)
        table.remove(t, 3)
        return t
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.remove", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        [...lapi.lua_topointer(L, -1).entries()]
            .filter(e => typeof e[0] === 'number')
            .map(e => e[1].value).sort(),
        [1, 2, 3, 4, null, null],
        "Correct element(s) on the stack"
    );
});


test('table.move', function (t) {
    let luaCode = `
        local t1 = {3, 4, 5}
        local t2 = {1, 2, nil, nil, nil, 6}
        return table.move(t1, 1, #t1, 3, t2)
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.move", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        [...lapi.lua_topointer(L, -1).entries()]
            .filter(e => typeof e[0] === 'number')
            .map(e => e[1].value).sort(),
        [1, 2, 3, 4, 5, 6],
        "Correct element(s) on the stack"
    );
});


test('table.sort (<)', function (t) {
    let luaCode = `
        local t = {3, 1, 5, ['just'] = 'tofuckitup', 2, 4}
        table.sort(t)
        return t
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.sort", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        inttable2array(lapi.lua_topointer(L, -1)),
        [1, 2, 3, 4, 5],
        "Correct element(s) on the stack"
    );
});


test('table.sort with cmp function', function (t) {
    let luaCode = `
        local t = {3, 1, 5, ['just'] = 'tofuckitup', 2, 4}
        table.sort(t, function (a, b)
            return a > b
        end)
        return t
    `, L;
    
    t.plan(2);

    t.doesNotThrow(function () {

        let bc = toByteCode(luaCode).dataView;

        L = lauxlib.luaL_newstate();

        linit.luaL_openlibs(L);

        lapi.lua_load(L, null, bc, "test-table.sort", "binary");

        lapi.lua_call(L, 0, -1);

    }, "JS Lua program ran without error");

    t.deepEqual(
        inttable2array(lapi.lua_topointer(L, -1)),
        [5, 4, 3, 2, 1],
        "Correct element(s) on the stack"
    );
});