// Ensures the hostInfo command returns complete and consistent information. Does not evaluate
// correctness of the information.
// @tags: [
//   # The test runs commands that are not allowed with security token: hostInfo.
//   not_allowed_with_signed_security_token,
// ]
// SERVER-4615:  Ensure hostInfo() command returns expected results on each platform

(function () {
    "use strict";

    function assertNoneOf(expr, values, msg) {
        for (const value of values) {
            // Use strict equality check so that we correctly evaluate `false` as distinct from `null`.
            assert(
                expr !== value,
                tojson(expr) +
                    " should be none of " +
                    tojson(values) +
                    ", but is equivalent to " +
                    tojson(value) +
                    " : " +
                    msg,
            );
        }
    }

    const hostinfo = assert.commandWorked(db.hostInfo());

    // test for os-specific fields
    if (hostinfo.os.type == "Windows") {
        assertNoneOf(hostinfo.os.name, ["", null], "Missing Windows os name");
        assertNoneOf(hostinfo.os.version, ["", null], "Missing Windows version");
    } else if (hostinfo.os.type == "Linux") {
        assertNoneOf(hostinfo.os.name, ["", null], "Missing Linux os/distro name");
        assertNoneOf(hostinfo.os.version, ["", null], "Missing Linux version");
    } else if (hostinfo.os.type == "Darwin") {
        assertNoneOf(hostinfo.os.name, ["", null], "Missing Darwin os name");
        assertNoneOf(hostinfo.os.version, ["", null], "Missing Darwin version");
    } else if (hostinfo.os.type == "BSD") {
        assertNoneOf(hostinfo.os.name, ["", null], "Missing FreeBSD os name");
        assertNoneOf(hostinfo.os.version, ["", null], "Missing FreeBSD version");
    }

    jsTest.log(hostinfo);
    // comment out this block for systems which have not implemented hostinfo.
    if (hostinfo.os.type != "") {
        assertNoneOf(hostinfo.system.hostname, ["", null], "Missing Hostname");
        assertNoneOf(hostinfo.system.currentTime, ["", null], "Missing Current Time");
        assertNoneOf(hostinfo.system.cpuAddrSize, ["", null, 0], "Missing CPU Address Size");
        assertNoneOf(hostinfo.system.memSizeMB, ["", null], "Missing Memory Size");
        assertNoneOf(hostinfo.system.numCores, ["", null, 0], "Missing Number of Logical Cores");
        // Check that numCoresAvailableToProcess != -1 as that indicates syscall failure.
        assertNoneOf(
            hostinfo.system.numCoresAvailableToProcess,
            ["", null, -1],
            "Missing Number of Cores Available To Process",
        );
        assertNoneOf(hostinfo.system.numPhysicalCores, ["", null, 0], "Missing Number of Physical Cores");
        assertNoneOf(hostinfo.system.numCpuSockets, ["", null, 0], "Missing Number of CPU Sockets");
        assertNoneOf(hostinfo.system.cpuArch, ["", null], "Missing CPU Architecture");
        assertNoneOf(hostinfo.system.numaEnabled, ["", null], "Missing NUMA flag");
        assertNoneOf(hostinfo.system.numNumaNodes, ["", null, 0], "Missing Number of NUMA Nodes");
    }

    const buildInfo = assert.commandWorked(db.runCommand({buildInfo: 1}));
    if (buildInfo.buildEnvironment && buildInfo.buildEnvironment.target_arch) {
        const targetArch = buildInfo.buildEnvironment.target_arch;
        if (targetArch == "i386") assert.eq(hostinfo.system.cpuAddrSize, 32);
        else assert.eq(hostinfo.system.cpuAddrSize, 64);
        assert.eq(hostinfo.system.cpuAddrSize, buildInfo.bits);
    }
})();