restructure services, add get_essid to quarrel.native and other wip work

10 files changed, 633 insertions, 29 deletions

diff --git a/.config/awesome/quarrel/json.lua b/.config/awesome/quarrel/json.lua
new file mode 100644
index 0000000..711ef78
--- /dev/null
+++ b/.config/awesome/quarrel/json.lua
@@ -0,0 +1,388 @@
+--
+-- json.lua
+--
+-- Copyright (c) 2020 rxi
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy of
+-- this software and associated documentation files (the "Software"), to deal in
+-- the Software without restriction, including without limitation the rights to
+-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+-- of the Software, and to permit persons to whom the Software is furnished to do
+-- so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all
+-- copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+--
+
+local json = { _version = "0.1.2" }
+
+-------------------------------------------------------------------------------
+-- Encode
+-------------------------------------------------------------------------------
+
+local encode
+
+local escape_char_map = {
+  [ "\\" ] = "\\",
+  [ "\"" ] = "\"",
+  [ "\b" ] = "b",
+  [ "\f" ] = "f",
+  [ "\n" ] = "n",
+  [ "\r" ] = "r",
+  [ "\t" ] = "t",
+}
+
+local escape_char_map_inv = { [ "/" ] = "/" }
+for k, v in pairs(escape_char_map) do
+  escape_char_map_inv[v] = k
+end
+
+
+local function escape_char(c)
+  return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
+end
+
+
+local function encode_nil(val)
+  return "null"
+end
+
+
+local function encode_table(val, stack)
+  local res = {}
+  stack = stack or {}
+
+  -- Circular reference?
+  if stack[val] then error("circular reference") end
+
+  stack[val] = true
+
+  if rawget(val, 1) ~= nil or next(val) == nil then
+    -- Treat as array -- check keys are valid and it is not sparse
+    local n = 0
+    for k in pairs(val) do
+      if type(k) ~= "number" then
+        error("invalid table: mixed or invalid key types")
+      end
+      n = n + 1
+    end
+    if n ~= #val then
+      error("invalid table: sparse array")
+    end
+    -- Encode
+    for i, v in ipairs(val) do
+      table.insert(res, encode(v, stack))
+    end
+    stack[val] = nil
+    return "[" .. table.concat(res, ",") .. "]"
+
+  else
+    -- Treat as an object
+    for k, v in pairs(val) do
+      if type(k) ~= "string" then
+        error("invalid table: mixed or invalid key types")
+      end
+      table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
+    end
+    stack[val] = nil
+    return "{" .. table.concat(res, ",") .. "}"
+  end
+end
+
+
+local function encode_string(val)
+  return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
+end
+
+
+local function encode_number(val)
+  -- Check for NaN, -inf and inf
+  if val ~= val or val <= -math.huge or val >= math.huge then
+    error("unexpected number value '" .. tostring(val) .. "'")
+  end
+  return string.format("%.14g", val)
+end
+
+
+local type_func_map = {
+  [ "nil"     ] = encode_nil,
+  [ "table"   ] = encode_table,
+  [ "string"  ] = encode_string,
+  [ "number"  ] = encode_number,
+  [ "boolean" ] = tostring,
+}
+
+
+encode = function(val, stack)
+  local t = type(val)
+  local f = type_func_map[t]
+  if f then
+    return f(val, stack)
+  end
+  error("unexpected type '" .. t .. "'")
+end
+
+
+function json.encode(val)
+  return ( encode(val) )
+end
+
+
+-------------------------------------------------------------------------------
+-- Decode
+-------------------------------------------------------------------------------
+
+local parse
+
+local function create_set(...)
+  local res = {}
+  for i = 1, select("#", ...) do
+    res[ select(i, ...) ] = true
+  end
+  return res
+end
+
+local space_chars   = create_set(" ", "\t", "\r", "\n")
+local delim_chars   = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
+local escape_chars  = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
+local literals      = create_set("true", "false", "null")
+
+local literal_map = {
+  [ "true"  ] = true,
+  [ "false" ] = false,
+  [ "null"  ] = nil,
+}
+
+
+local function next_char(str, idx, set, negate)
+  for i = idx, #str do
+    if set[str:sub(i, i)] ~= negate then
+      return i
+    end
+  end
+  return #str + 1
+end
+
+
+local function decode_error(str, idx, msg)
+  local line_count = 1
+  local col_count = 1
+  for i = 1, idx - 1 do
+    col_count = col_count + 1
+    if str:sub(i, i) == "\n" then
+      line_count = line_count + 1
+      col_count = 1
+    end
+  end
+  error( string.format("%s at line %d col %d", msg, line_count, col_count) )
+end
+
+
+local function codepoint_to_utf8(n)
+  -- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
+  local f = math.floor
+  if n <= 0x7f then
+    return string.char(n)
+  elseif n <= 0x7ff then
+    return string.char(f(n / 64) + 192, n % 64 + 128)
+  elseif n <= 0xffff then
+    return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
+  elseif n <= 0x10ffff then
+    return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
+                       f(n % 4096 / 64) + 128, n % 64 + 128)
+  end
+  error( string.format("invalid unicode codepoint '%x'", n) )
+end
+
+
+local function parse_unicode_escape(s)
+  local n1 = tonumber( s:sub(1, 4),  16 )
+  local n2 = tonumber( s:sub(7, 10), 16 )
+   -- Surrogate pair?
+  if n2 then
+    return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
+  else
+    return codepoint_to_utf8(n1)
+  end
+end
+
+
+local function parse_string(str, i)
+  local res = ""
+  local j = i + 1
+  local k = j
+
+  while j <= #str do
+    local x = str:byte(j)
+
+    if x < 32 then
+      decode_error(str, j, "control character in string")
+
+    elseif x == 92 then -- `\`: Escape
+      res = res .. str:sub(k, j - 1)
+      j = j + 1
+      local c = str:sub(j, j)
+      if c == "u" then
+        local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
+                 or str:match("^%x%x%x%x", j + 1)
+                 or decode_error(str, j - 1, "invalid unicode escape in string")
+        res = res .. parse_unicode_escape(hex)
+        j = j + #hex
+      else
+        if not escape_chars[c] then
+          decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
+        end
+        res = res .. escape_char_map_inv[c]
+      end
+      k = j + 1
+
+    elseif x == 34 then -- `"`: End of string
+      res = res .. str:sub(k, j - 1)
+      return res, j + 1
+    end
+
+    j = j + 1
+  end
+
+  decode_error(str, i, "expected closing quote for string")
+end
+
+
+local function parse_number(str, i)
+  local x = next_char(str, i, delim_chars)
+  local s = str:sub(i, x - 1)
+  local n = tonumber(s)
+  if not n then
+    decode_error(str, i, "invalid number '" .. s .. "'")
+  end
+  return n, x
+end
+
+
+local function parse_literal(str, i)
+  local x = next_char(str, i, delim_chars)
+  local word = str:sub(i, x - 1)
+  if not literals[word] then
+    decode_error(str, i, "invalid literal '" .. word .. "'")
+  end
+  return literal_map[word], x
+end
+
+
+local function parse_array(str, i)
+  local res = {}
+  local n = 1
+  i = i + 1
+  while 1 do
+    local x
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of array?
+    if str:sub(i, i) == "]" then
+      i = i + 1
+      break
+    end
+    -- Read token
+    x, i = parse(str, i)
+    res[n] = x
+    n = n + 1
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "]" then break end
+    if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
+  end
+  return res, i
+end
+
+
+local function parse_object(str, i)
+  local res = {}
+  i = i + 1
+  while 1 do
+    local key, val
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of object?
+    if str:sub(i, i) == "}" then
+      i = i + 1
+      break
+    end
+    -- Read key
+    if str:sub(i, i) ~= '"' then
+      decode_error(str, i, "expected string for key")
+    end
+    key, i = parse(str, i)
+    -- Read ':' delimiter
+    i = next_char(str, i, space_chars, true)
+    if str:sub(i, i) ~= ":" then
+      decode_error(str, i, "expected ':' after key")
+    end
+    i = next_char(str, i + 1, space_chars, true)
+    -- Read value
+    val, i = parse(str, i)
+    -- Set
+    res[key] = val
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "}" then break end
+    if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
+  end
+  return res, i
+end
+
+
+local char_func_map = {
+  [ '"' ] = parse_string,
+  [ "0" ] = parse_number,
+  [ "1" ] = parse_number,
+  [ "2" ] = parse_number,
+  [ "3" ] = parse_number,
+  [ "4" ] = parse_number,
+  [ "5" ] = parse_number,
+  [ "6" ] = parse_number,
+  [ "7" ] = parse_number,
+  [ "8" ] = parse_number,
+  [ "9" ] = parse_number,
+  [ "-" ] = parse_number,
+  [ "t" ] = parse_literal,
+  [ "f" ] = parse_literal,
+  [ "n" ] = parse_literal,
+  [ "[" ] = parse_array,
+  [ "{" ] = parse_object,
+}
+
+
+parse = function(str, idx)
+  local chr = str:sub(idx, idx)
+  local f = char_func_map[chr]
+  if f then
+    return f(str, idx)
+  end
+  decode_error(str, idx, "unexpected character '" .. chr .. "'")
+end
+
+
+function json.decode(str)
+  if type(str) ~= "string" then
+    error("expected argument of type string, got " .. type(str))
+  end
+  local res, idx = parse(str, next_char(str, 1, space_chars, true))
+  idx = next_char(str, idx, space_chars, true)
+  if idx <= #str then
+    decode_error(str, idx, "trailing garbage")
+  end
+  return res
+end
+
+
+return json
diff --git a/.config/awesome/quarrel/math.lua b/.config/awesome/quarrel/math.lua
index bc1f53b..886ce13 100644
--- a/.config/awesome/quarrel/math.lua
+++ b/.config/awesome/quarrel/math.lua
@@ -1,6 +1,9 @@
 local qmath = {}
 
 function qmath.step_value(value, steps)
+    if value > steps[#steps - 1][1] then
+        return steps[#steps - 1][2]
+    end
     for i, step in ipairs(steps) do
         if step[1] <= value and value <= steps[i + 1][1] then
             return step[2]
diff --git a/.config/awesome/quarrel/native/Cargo.toml b/.config/awesome/quarrel/native/Cargo.toml
index fdabea0..6c44528 100644
--- a/.config/awesome/quarrel/native/Cargo.toml
+++ b/.config/awesome/quarrel/native/Cargo.toml
@@ -14,6 +14,7 @@ rayon = "1.6.1"
 serde = { version = "1.0.152", features = [ "derive" ] }
 url = "2.3.1"
 rodio = "0.17.1"
+nix = "0.26.2"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/.config/awesome/quarrel/native/src/lenses/calculator.rs b/.config/awesome/quarrel/native/src/lenses/calculator.rs
index 89b738e..c79dd42 100644
--- a/.config/awesome/quarrel/native/src/lenses/calculator.rs
+++ b/.config/awesome/quarrel/native/src/lenses/calculator.rs
@@ -13,14 +13,7 @@ use crate::lenses::entry::{
 pub fn query<'a>(lua: &Lua, input: String) -> LuaResult<LuaTable> {
     let result = match eval(input.trim(), true, Unit::Celsius, false) {
         Ok(result) => {
-            format!(
-                "{}{}",
-                result.value,
-                match result.unit {
-                    Unit::NoUnit => "".to_owned(),
-                    _ => format!(" {:?}", result.unit),
-                }
-            )
+            format!("{result}")
         }
         Err(_) => return lua.create_table(),
     };
diff --git a/.config/awesome/quarrel/native/src/lib.rs b/.config/awesome/quarrel/native/src/lib.rs
index d265d2d..e21e306 100644
--- a/.config/awesome/quarrel/native/src/lib.rs
+++ b/.config/awesome/quarrel/native/src/lib.rs
@@ -1,5 +1,5 @@
 mod lenses;
-// mod sound;
+mod net;
 
 use mlua::prelude::*;
 
@@ -11,6 +11,7 @@ fn qnative(lua: &Lua) -> LuaResult<LuaTable> {
 
     let exports = lua.create_table()?;
     exports.set("lenses", lenses)?;
+    exports.set("get_essid", lua.create_function(net::get_first_essid)?)?;
 
     Ok(exports)
 }
diff --git a/.config/awesome/quarrel/native/src/net/mod.rs b/.config/awesome/quarrel/native/src/net/mod.rs
new file mode 100644
index 0000000..c9d617c
--- /dev/null
+++ b/.config/awesome/quarrel/native/src/net/mod.rs
@@ -0,0 +1,113 @@
+// This is an attempt to port the iwgetid and iwlib code
+
+mod wireless;
+use std::{
+    ffi::{
+        c_char,
+        c_int,
+        c_uchar,
+        c_void,
+    },
+    mem::size_of,
+    os::fd::RawFd,
+    str,
+};
+
+use mlua::prelude::*;
+use nix::{
+    ioctl_read_bad,
+    libc::IF_NAMESIZE,
+    sys::socket::{
+        socket as open_socket,
+        AddressFamily,
+        SockFlag,
+        SockType,
+    },
+    unistd::close
+};
+use wireless::{
+    IfConf,
+    IfConfData,
+    IwPoint,
+    IwReq,
+    IwReqData,
+    IwReqName,
+    IW_ESSID_MAX_SIZE,
+    SIOCGIFCONF,
+    SIOCGIWESSID,
+};
+
+ioctl_read_bad!(ioctl_get_interfaces, SIOCGIFCONF, IfConf);
+ioctl_read_bad!(ioctl_get_essid, SIOCGIWESSID, IwReq);
+
+pub fn get_first_essid(_: &Lua, _: ()) -> LuaResult<String> {
+    type Buffer = [c_char; 1024];
+    let mut buffer: Buffer = [0; 1024];
+
+    let mut if_conf = IfConf {
+        ifc_len: size_of::<Buffer>() as c_int,
+        data: IfConfData {
+            ifc_buf: buffer.as_mut_ptr(),
+        },
+    };
+
+    let mut if_req;
+    let socket = get_first_socket().map_err(LuaError::external)?;
+
+    unsafe {
+        ioctl_get_interfaces(socket, &mut if_conf).map_err(LuaError::external)?;
+        if_req = if_conf.data.ifc_req;
+    }
+
+    for _ in 0..if_conf.ifc_len / size_of::<IfConf>() as c_int {
+        if let Ok(essid) = get_essid(socket, unsafe { *if_req }.ifr_name) {
+            close(socket).map_err(LuaError::external)?;
+            return Ok(essid);
+        };
+
+        unsafe { if_req = if_req.add(1) };
+    }
+
+    close(socket).map_err(LuaError::external)?;
+    Err(LuaError::external("couldn't find any valid interfaces"))
+}
+
+fn get_essid(socket: RawFd, if_name: [c_char; IF_NAMESIZE]) -> LuaResult<String> {
+    let mut essid: [c_uchar; (IW_ESSID_MAX_SIZE + 1) as usize] =
+        [0; (IW_ESSID_MAX_SIZE + 1) as usize];
+    let mut wrq = IwReq {
+        ifr_ifrn: IwReqName { ifrn_name: if_name },
+        u: IwReqData {
+            essid: IwPoint {
+                pointer: essid.as_mut_ptr().cast::<c_void>(),
+                length: IW_ESSID_MAX_SIZE + 1,
+                flags: 0,
+            },
+        },
+    };
+
+    unsafe {
+        ioctl_get_essid(socket, &mut wrq).map_err(LuaError::external)?;
+    }
+
+    Ok(str::from_utf8(essid.as_slice())
+        .map_err(LuaError::external)?
+        .to_owned())
+}
+
+fn get_first_socket() -> LuaResult<RawFd> {
+    let families = [
+        AddressFamily::Inet,
+        AddressFamily::Ipx,
+        AddressFamily::Ax25,
+        AddressFamily::AppleTalk,
+    ];
+
+    for family in families {
+        if let Ok(socket) = open_socket(family, SockType::Datagram, SockFlag::empty(), None) {
+            return Ok(socket);
+        }
+    }
+
+    Err(LuaError::external("couldn't get a valid kernel socket"))
+}
diff --git a/.config/awesome/quarrel/native/src/net/wireless.rs b/.config/awesome/quarrel/native/src/net/wireless.rs
new file mode 100644
index 0000000..d3999db
--- /dev/null
+++ b/.config/awesome/quarrel/native/src/net/wireless.rs
@@ -0,0 +1,104 @@
+use std::ffi::{
+    c_char,
+    c_int,
+    c_void,
+};
+
+use nix::libc::{
+    __s16,
+    __s32,
+    __u16,
+    __u8,
+    ifreq as IfReq,
+    sockaddr as SockAddr,
+    IF_NAMESIZE,
+};
+
+pub static SIOCGIFCONF: c_int = 0x8912;
+pub static SIOCGIWESSID: c_int = 0x8B1B;
+pub const IW_ESSID_MAX_SIZE: u16 = 32;
+
+#[repr(C)]
+pub struct IfConf {
+    pub ifc_len: c_int,
+    pub data: IfConfData,
+}
+
+#[repr(C)]
+pub union IfConfData {
+    pub ifc_req: *mut IfReq,
+    pub ifc_buf: *mut c_char,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct IwPoint {
+    pub pointer: *mut c_void,
+    pub length: __u16,
+    pub flags: __u16,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct IwFreq {
+    pub m: __s32,
+    pub e: __s16,
+    pub i: __u8,
+    pub flags: __u8,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct IwParam {
+    pub value: __s32,
+    pub fixed: __u8,
+    pub disabled: __u8,
+    pub flags: __u16,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct IwQuality {
+    pub qual: __u8,
+    pub level: __u8,
+    pub noise: __u8,
+    pub updated: __u8,
+}
+
+#[repr(C)]
+pub struct IwReq {
+    pub ifr_ifrn: IwReqName,
+    pub u: IwReqData,
+}
+
+#[repr(C)]
+pub union IwReqName {
+    pub ifrn_name: [c_char; IF_NAMESIZE],
+}
+
+#[repr(C)]
+pub union IwReqData {
+    pub name: [c_char; IF_NAMESIZE],
+
+    pub essid: IwPoint,
+    pub nwid: IwParam,
+    pub freq: IwFreq,
+
+    pub sens: IwParam,
+    pub bitrate: IwParam,
+    pub txpower: IwParam,
+    pub rts: IwParam,
+    pub frag: IwParam,
+    pub mode: u32,
+    pub retry: IwParam,
+
+    pub encoding: IwPoint,
+    pub power: IwParam,
+    pub qual: IwQuality,
+
+    pub ap_addr: SockAddr,
+    pub addr: SockAddr,
+
+    pub param: IwParam,
+    pub data: IwPoint,
+}
diff --git a/.config/awesome/quarrel/native/src/sound.rs b/.config/awesome/quarrel/native/src/sound.rs
deleted file mode 100644
index c398d70..0000000
--- a/.config/awesome/quarrel/native/src/sound.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-use std::{
-    fs::File,
-    io::BufReader,
-    path::Path,
-    time::Duration,
-};
-
-use mlua::prelude::*;
-use rodio::{
-    Decoder,
-    OutputStream,
-    Sink,
-};
-
-pub fn play_sound(_: &Lua, file: String) -> LuaResult<()> {
-    
-}
diff --git a/.config/awesome/quarrel/service.lua b/.config/awesome/quarrel/service.lua
new file mode 100644
index 0000000..2c77651
--- /dev/null
+++ b/.config/awesome/quarrel/service.lua
@@ -0,0 +1,18 @@
+local gtimer = require "gears.timer"
+
+local qservice = {}
+
+function qservice.register(name, service, icon)
+    gtimer {
+        timeout = 1,
+        call_now = true,
+        autostart = true,
+        callback = function()
+            local service_result = table.pack(service())
+            awesome.emit_signal("services::" .. name, table.unpack(service_result))
+            awesome.emit_signal("services::" .. name .. "::icon", icon(table.unpack(service_result)))
+        end
+    }
+end
+
+return qservice
diff --git a/.config/awesome/quarrel/vars.lua b/.config/awesome/quarrel/vars.lua
index 76d0b94..391e875 100644
--- a/.config/awesome/quarrel/vars.lua
+++ b/.config/awesome/quarrel/vars.lua
@@ -34,10 +34,10 @@ local char_width, char_height = wibox.widget {
 qvars.char_height = char_height
 qvars.char_width = char_width
 
--- qvars.bar_size = dpi(16)
 qvars.bar_size = dpi(24) + qvars.big_padding * 2
-qvars.icon_size = qvars.char_height
-qvars.button_size = dpi(12)
+-- qvars.expanded_bar_size = qvars.bar_size * 6
+qvars.element_size = dpi(12)
+qvars.expanded_bar_size = qvars.big_padding + (qvars.big_padding * 2 + qvars.element_size * 4) * 3 + qvars.padding * 2
 
 qvars.colors = {
     fg = x_col.foreground,