pos/src/main.zig

684 lines
27 KiB
Zig

const builtin = @import("builtin");
const std = @import("std");
const pos = @import("pos");
fn loadReplacements(allocator: std.mem.Allocator) !std.StringHashMap([]const u8) {
var replacements = std.StringHashMap([]const u8).init(allocator);
// Try current directory first
if (std.fs.cwd().openFile("replacements.json", .{})) |file| {
defer file.close();
const content = try file.readToEndAlloc(allocator, 1024 * 1024);
defer allocator.free(content);
const parsed = try std.json.parseFromSlice(std.json.Value, allocator, content, .{});
defer parsed.deinit();
const obj = parsed.value.object;
var it = obj.iterator();
while (it.next()) |entry| {
try replacements.put(try allocator.dupe(u8, entry.key_ptr.*), try allocator.dupe(u8, entry.value_ptr.*.string));
}
return replacements;
} else |_| {}
// Try XDG_CONFIG_HOME or HOME/.config
const config_dir = std.posix.getenv("XDG_CONFIG_HOME") orelse blk: {
const home = std.posix.getenv("HOME") orelse {
std.log.warn("No replacement configuration file found", .{});
return replacements;
};
break :blk try std.fs.path.join(allocator, &.{ home, ".config" });
};
const config_path = if (std.posix.getenv("XDG_CONFIG_HOME") != null)
try std.fs.path.join(allocator, &.{ config_dir, "pos", "replacements.json" })
else blk: {
defer allocator.free(config_dir);
break :blk try std.fs.path.join(allocator, &.{ config_dir, "pos", "replacements.json" });
};
defer allocator.free(config_path);
if (std.fs.openFileAbsolute(config_path, .{})) |file| {
defer file.close();
const content = try file.readToEndAlloc(allocator, 1024 * 1024);
defer allocator.free(content);
const parsed = try std.json.parseFromSlice(std.json.Value, allocator, content, .{});
defer parsed.deinit();
const obj = parsed.value.object;
var it = obj.iterator();
while (it.next()) |entry| {
try replacements.put(try allocator.dupe(u8, entry.key_ptr.*), try allocator.dupe(u8, entry.value_ptr.*.string));
}
return replacements;
} else |_| {}
std.log.warn("No replacement configuration file found", .{});
return replacements;
}
const DeviceAction = enum {
on,
off,
toggle,
};
fn sendWemoCommand(allocator: std.mem.Allocator, device_entry: std.hash_map.StringHashMap([]const u8).Entry, action: DeviceAction) !void {
const state = switch (action) {
.on => "1",
.off => "0",
.toggle => return error.ToggleNotImplemented,
};
// port 49152 or 49153
// curl -0 -A '' -X POST -H 'Accept: ' -H 'Content-type: text/xml; charset="utf-8"' -H "SOAPACTION: \"urn:Belkin:service:basicevent:1#SetBinaryState\"" --data '<?xml version="1.0" encoding="utf-8"?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:SetBinaryState xmlns:u="urn:Belkin:service:basicevent:1"><BinaryState>1</BinaryState></u:SetBinaryState></s:Body></s:Envelope>' -s http://$IP:$PORT/upnp/control/basicevent1 |
const soap_body = try std.fmt.allocPrint(allocator,
\\<?xml version="1.0" encoding="utf-8"?>
\\<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
\\<s:Body>
\\<u:SetBinaryState xmlns:u="urn:Belkin:service:basicevent:1">
\\<BinaryState>{s}</BinaryState>
\\</u:SetBinaryState>
\\</s:Body>
\\</s:Envelope>
, .{state});
defer allocator.free(soap_body);
const url = try std.fmt.allocPrint(allocator, "{s}/upnp/control/basicevent1", .{device_entry.value_ptr.*});
defer allocator.free(url);
var client = std.http.Client{ .allocator = allocator };
defer client.deinit();
std.log.debug("sending WeMo {s} command to '{s}' at {s}\n", .{
@tagName(action),
device_entry.key_ptr.*,
device_entry.value_ptr.*,
});
const res = try client.fetch(.{
.method = .POST,
.payload = soap_body,
.location = .{ .url = url },
.headers = .{ .content_type = .{ .override = "text/html; charset=\"utf-8\"" } },
.extra_headers = &.{
.{ .name = "SOAPACTION", .value = "urn:Belkin:service:basicevent:1#SetBinaryState" },
},
});
if (res.status == .ok) {
var stdout_writer = std.fs.File.stdout().writer(&.{});
const stdout = &stdout_writer.interface;
try stdout.print("WeMo {s} command sent to '{s}' at {s}\n", .{
@tagName(action),
device_entry.key_ptr.*,
device_entry.value_ptr.*,
});
} else {
var stderr_writer = std.fs.File.stderr().writer(&.{});
const stderr = &stderr_writer.interface;
try stderr.print("ERROR: Could not send WeMo {s} command to '{s}' at {s}\n", .{
@tagName(action),
device_entry.key_ptr.*,
device_entry.value_ptr.*,
});
}
}
fn loadDeviceConfig(allocator: std.mem.Allocator, bin_dir: []const u8) !std.StringHashMap([]const u8) {
// Try current directory first
if (loadConfigFromPath(allocator, "controlData.json")) |config| {
return config;
} else |_| {}
// Try controlData.json in bin directory
const json_path = try std.fs.path.join(allocator, &[_][]const u8{ bin_dir, "controlData.json" });
defer allocator.free(json_path);
if (loadConfigFromPath(allocator, json_path)) |config| {
return config;
} else |_| {}
// Try ../share/pos relative to bin directory
const share_path = try std.fs.path.join(allocator, &[_][]const u8{ bin_dir, "../share/pos/controlData.json" });
defer allocator.free(share_path);
if (loadConfigFromPath(allocator, share_path)) |config| {
return config;
} else |_| {}
return loadDevicesFromTxt(allocator, bin_dir);
}
fn loadConfigFromPath(allocator: std.mem.Allocator, path: []const u8) !std.StringHashMap([]const u8) {
var devices = std.StringHashMap([]const u8).init(allocator);
const file = if (std.fs.path.isAbsolute(path))
std.fs.openFileAbsolute(path, .{}) catch return error.FileNotFound
else
std.fs.cwd().openFile(path, .{}) catch return error.FileNotFound;
defer file.close();
const content = try file.readToEndAlloc(allocator, 1024 * 1024);
defer allocator.free(content);
var stderr_writer = std.fs.File.stderr().writer(&.{});
const stderr = &stderr_writer.interface;
const parsed = std.json.parseFromSlice(std.json.Value, allocator, content, .{}) catch |err| {
try stderr.print(
"Failed to parse controlData.json: {}. Ignoring controlData.json, looking for devices.txt",
.{err},
);
return error.ParseError;
};
defer parsed.deinit();
const root = parsed.value.object;
const device_array = root.get("devices").?.array;
for (device_array.items) |device| {
const device_obj = device.object;
const name = device_obj.get("name").?.string;
const url = device_obj.get("url").?.string;
if (name.len > 0) {
const name_copy = try allocator.alloc(u8, name.len);
_ = std.ascii.lowerString(name_copy, name);
try devices.put(name_copy, try allocator.dupe(u8, url));
std.log.debug("Loaded device: '{s}' -> {s}", .{ name, url });
}
}
return devices;
}
fn loadDevicesFromTxt(allocator: std.mem.Allocator, bin_dir: []const u8) !std.StringHashMap([]const u8) {
var devices = std.StringHashMap([]const u8).init(allocator);
const txt_path = try std.fs.path.join(allocator, &[_][]const u8{ bin_dir, "devices.txt" });
defer allocator.free(txt_path);
const file = std.fs.openFileAbsolute(txt_path, .{}) catch |err| switch (err) {
error.FileNotFound => {
var stderr_writer = std.fs.File.stderr().writer(&.{});
const stderr = &stderr_writer.interface;
try stderr.print(
\\Error: could not load configuration. Please make sure controlData.json or
\\devices.txt is available in the directory with this program
, .{});
return error.ConfigurationNotAvailable;
},
else => return err,
};
defer file.close();
const content = try file.readToEndAlloc(allocator, 1024 * 1024);
defer allocator.free(content);
var lines = std.mem.splitScalar(u8, content, '\n');
while (lines.next()) |line| {
const trimmed = std.mem.trim(u8, line, " \t\r\n");
if (trimmed.len == 0 or trimmed[0] == '#') continue;
if (std.mem.indexOf(u8, trimmed, "=")) |eq_pos| {
const name = std.mem.trim(u8, trimmed[0..eq_pos], " \t");
const url_base = std.mem.trim(u8, trimmed[eq_pos + 1 ..], " \t");
if (name.len > 0 and url_base.len > 0) {
const name_copy = try allocator.alloc(u8, name.len);
_ = std.ascii.lowerString(name_copy, name);
try devices.put(name, try allocator.dupe(u8, url_base));
}
}
}
return devices;
}
fn parseAction(action_words: [][]const u8) ?DeviceAction {
if (action_words.len >= 2) {
if (std.mem.eql(u8, action_words[0], "turn") and std.mem.eql(u8, action_words[1], "on")) {
return .on;
} else if (std.mem.eql(u8, action_words[0], "turn") and std.mem.eql(u8, action_words[1], "off")) {
return .off;
}
}
return null;
}
fn extractDevice(allocator: std.mem.Allocator, object_words: [][]const u8, devices: *std.StringHashMap([]const u8), replacements: *std.StringHashMap([]const u8)) !?std.hash_map.StringHashMap([]const u8).Entry {
if (object_words.len == 0) return null;
var total_size: usize = 0;
for (object_words) |word|
total_size += word.len + 1;
var allocating_writer = try std.Io.Writer.Allocating.initCapacity(allocator, total_size);
defer allocating_writer.deinit();
const writer = &allocating_writer.writer;
// Try original words first
for (0..object_words.len) |removed_words| {
defer allocating_writer.clearRetainingCapacity();
const total_words = object_words.len - removed_words;
for (object_words, 1..) |word, i| {
if (i >= total_words + 1) break;
var buf: [256]u8 = undefined;
const lower_string = std.ascii.lowerString(&buf, word);
try writer.print("{s}{s}", .{
lower_string,
if (i < object_words.len - removed_words) " " else "",
});
}
std.log.debug("Attempting device match '{s}'", .{allocating_writer.written()});
if (devices.getEntry(allocating_writer.written())) |entry| return entry;
}
// Try with word replacements
for (0..object_words.len) |removed_words| {
defer allocating_writer.clearRetainingCapacity();
const total_words = object_words.len - removed_words;
for (object_words, 1..) |word, i| {
if (i >= total_words + 1) break;
var buf: [256]u8 = undefined;
const lower_string = std.ascii.lowerString(&buf, word);
const final_word = replacements.get(lower_string) orelse lower_string;
try writer.print("{s}{s}", .{
final_word,
if (i < object_words.len - removed_words) " " else "",
});
}
std.log.debug("Attempting device match with replacements '{s}'", .{allocating_writer.written()});
if (devices.getEntry(allocating_writer.written())) |entry| return entry;
}
return null;
}
pub fn main() !u8 {
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const allocator = gpa.allocator();
const args = try std.process.argsAlloc(allocator);
defer std.process.argsFree(allocator, args);
// Check for --sentence-parse-only option
var sentence_parse_only: enum { sentence, command, none } = .none;
var sentence_arg: ?[]const u8 = null;
for (args[1..]) |arg| {
if (std.mem.eql(u8, arg, "--sentence-parse-only"))
sentence_parse_only = .sentence
else if (std.mem.eql(u8, arg, "--command-parse-only"))
sentence_parse_only = .command
else if (sentence_arg == null)
sentence_arg = arg;
}
var stdout_writer = std.fs.File.stdout().writer(&.{});
const stdout = &stdout_writer.interface;
var stderr_writer = std.fs.File.stderr().writer(&.{});
const stderr = &stderr_writer.interface;
if (sentence_arg == null) {
try stderr.print("Usage: {s} [--sentence-parse-only] [--command-parse-only] <sentence>\n", .{args[0]});
return 1;
}
if (sentence_parse_only == .none and std.mem.count(u8, sentence_arg.?, " ") == 0) {
// a command cannot be made from a single word
try stdout.print("Ignoring attempt at single word command\n", .{});
return 0;
}
const bin_dir = std.fs.selfExeDirPathAlloc(allocator) catch |err| {
stderr.print("Failed to get binary path: {}\n", .{err}) catch {};
return 1;
};
defer allocator.free(bin_dir);
std.log.debug("initializing parser", .{});
var parser = pos.Parser.initWithDataDir(allocator, bin_dir) catch |err| {
std.debug.print("Failed to initialize parser: {}\n", .{err});
return 1;
};
defer parser.deinit();
if (sentence_parse_only != .none) {
const sentence_z = try allocator.dupeZ(u8, sentence_arg.?);
defer allocator.free(sentence_z);
var tree = if (sentence_parse_only == .command) blk: {
var replacements = try loadReplacements(allocator);
defer {
var iterator = replacements.iterator();
while (iterator.next()) |entry| {
allocator.free(entry.key_ptr.*);
allocator.free(entry.value_ptr.*);
}
replacements.deinit();
}
break :blk parser.adaptiveCommandParse(sentence_z, &replacements) catch {
std.log.err("Failed to parse sentence: {s}", .{sentence_z});
return 1;
};
} else parser.parse(sentence_z) catch {
std.log.err("Failed to parse sentence: {s}", .{sentence_z});
return 1;
};
defer tree.deinit();
try stdout.print("{f}", .{tree});
} else {
std.log.debug("loading device config", .{});
var devices = loadDeviceConfig(allocator, bin_dir) catch |err| {
stderr.print("Failed to load device configuration: {}\n", .{err}) catch {};
return 1;
};
defer {
var iterator = devices.iterator();
while (iterator.next()) |entry| {
allocator.free(entry.key_ptr.*);
allocator.free(entry.value_ptr.*);
}
devices.deinit();
}
var replacements = try loadReplacements(allocator);
defer {
var iterator = replacements.iterator();
while (iterator.next()) |entry| {
allocator.free(entry.key_ptr.*);
allocator.free(entry.value_ptr.*);
}
replacements.deinit();
}
processCommand(allocator, args[1], &parser, &devices, &replacements) catch |err| {
switch (err) {
error.UnrecognizedSentence => {
try stderr.print("Unrecognized sentence: {s}\n", .{args[1]});
return 1;
},
else => return err,
}
};
}
return 0;
}
fn processCommand(allocator: std.mem.Allocator, sentence: [:0]const u8, parser: *pos.Parser, devices: *std.StringHashMap([]const u8), replacements: *std.StringHashMap([]const u8)) !void {
var tree = parser.adaptiveCommandParse(sentence, replacements) catch |err| {
std.log.err("Failed to parse sentence: {}\n", .{err});
return error.UnrecognizedSentence;
};
defer tree.deinit();
const action_words = try tree.sentenceAction();
defer allocator.free(action_words);
const object_words = try tree.sentenceObject();
defer allocator.free(object_words);
std.log.debug("{f}", .{tree});
var aw = std.Io.Writer.Allocating.init(allocator);
defer aw.deinit();
const aw_writer = &aw.writer;
try aw_writer.writeAll("Object words: [");
var first = true;
for (object_words) |word| {
try aw_writer.print("{s}\"{s}\"", .{ if (!first) ", " else "", word });
first = false;
}
std.log.debug("{s}]", .{aw.written()});
aw.clearRetainingCapacity();
try aw_writer.writeAll("Action words: [");
first = true;
for (action_words) |word| {
try aw_writer.print("{s}\"{s}\"", .{ if (!first) ", " else "", word });
first = false;
}
std.log.debug("{s}]", .{aw.written()});
if (parseAction(action_words)) |action| {
if (try extractDevice(allocator, object_words, devices, replacements)) |entry| {
if (builtin.is_test)
testSendCommand(entry, action)
else
try sendWemoCommand(allocator, entry, action);
return; // Success
}
}
return error.UnrecognizedSentence;
}
// SAFETY: only used for testing, and in each case this is set before checking results
var test_device_entry: std.hash_map.StringHashMap([]const u8).Entry = undefined;
// SAFETY: only used for testing, and in each case this is set before checking results
var test_action: DeviceAction = undefined;
fn testSendCommand(device_entry: std.hash_map.StringHashMap([]const u8).Entry, action: DeviceAction) void {
test_device_entry = device_entry;
test_action = action;
}
test "extractDevice single word exact match" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
try devices.put("bedroom", "192.168.1.101");
var object_words = [_][]const u8{"kitchen"};
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice single word case insensitive" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
var object_words = [_][]const u8{"Kitchen"};
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice two words exact match" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("bedroom light", "192.168.1.100");
var object_words = [_][]const u8{ "bedroom", "light" };
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice two words case insensitive" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("bedroom light", "192.168.1.100");
var object_words = [_][]const u8{ "Bedroom", "Light" };
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice not found" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
var object_words = [_][]const u8{"bathroom"};
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expect(result == null);
}
test "extractDevice empty words" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
var object_words = [_][]const u8{};
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expect(result == null);
}
test "extractDevice fallback to shorter match" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
var object_words = [_][]const u8{ "kitchen", "ceiling", "light" };
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice word replacement lake to light" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try replacements.put("lake", "light");
try devices.put("bedroom light", "192.168.1.100");
var object_words = [_][]const u8{ "bedroom", "lake" };
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", result.?.value_ptr.*);
}
test "extractDevice word replacement like to light" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try replacements.put("like", "light");
try devices.put("kitchen light", "192.168.1.101");
var object_words = [_][]const u8{ "kitchen", "like" };
const result = try extractDevice(std.testing.allocator, object_words[0..], &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.101", result.?.value_ptr.*);
}
test "processCommand successful match" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
var parser = try pos.Parser.init(std.testing.allocator);
defer parser.deinit();
const sentence = "turn on the kitchen";
const sentence_z = try std.testing.allocator.dupeZ(u8, sentence);
defer std.testing.allocator.free(sentence_z);
try processCommand(std.testing.allocator, sentence_z, &parser, &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", test_device_entry.value_ptr.*);
try std.testing.expectEqual(DeviceAction.on, test_action);
}
test "processCommand with word replacement lake to light" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try replacements.put("lake", "light");
try devices.put("kitchen light", "192.168.1.100");
var parser = try pos.Parser.init(std.testing.allocator);
defer parser.deinit();
const sentence = "turn on the kitchen lake";
const sentence_z = try std.testing.allocator.dupeZ(u8, sentence);
defer std.testing.allocator.free(sentence_z);
try processCommand(std.testing.allocator, sentence_z, &parser, &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.100", test_device_entry.value_ptr.*);
try std.testing.expectEqual(DeviceAction.on, test_action);
}
test "processCommand with word replacement like to light" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try replacements.put("like", "light");
try devices.put("bedroom light", "192.168.1.101");
var parser = try pos.Parser.init(std.testing.allocator);
defer parser.deinit();
const sentence = "turn off the bedroom like";
const sentence_z = try std.testing.allocator.dupeZ(u8, sentence);
defer std.testing.allocator.free(sentence_z);
try processCommand(std.testing.allocator, sentence_z, &parser, &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.101", test_device_entry.value_ptr.*);
try std.testing.expectEqual(DeviceAction.off, test_action);
}
test "processCommand with word replacement like to light - three words" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try replacements.put("like", "light");
try devices.put("jack bedroom light", "192.168.1.101");
var parser = try pos.Parser.init(std.testing.allocator);
defer parser.deinit();
const sentence = "turn off jack bedroom like";
const sentence_z = try std.testing.allocator.dupeZ(u8, sentence);
defer std.testing.allocator.free(sentence_z);
try processCommand(std.testing.allocator, sentence_z, &parser, &devices, &replacements);
try std.testing.expectEqualStrings("192.168.1.101", test_device_entry.value_ptr.*);
try std.testing.expectEqual(DeviceAction.off, test_action);
}
test "processCommand no match found" {
var devices = std.StringHashMap([]const u8).init(std.testing.allocator);
defer devices.deinit();
var replacements = std.StringHashMap([]const u8).init(std.testing.allocator);
defer replacements.deinit();
try devices.put("kitchen", "192.168.1.100");
var parser = try pos.Parser.init(std.testing.allocator);
defer parser.deinit();
const sentence = "turn on the bathroom";
const sentence_z = try std.testing.allocator.dupeZ(u8, sentence);
defer std.testing.allocator.free(sentence_z);
try std.testing.expectError(error.UnrecognizedSentence, processCommand(std.testing.allocator, sentence_z, &parser, &devices, &replacements));
}