1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165

use crate::nmea::NmeaGga;
use crate::quantity::{Distance, Pressure, Temperature};

use serde::{de, Deserializer, Serialize};

#[derive(Default, serde::Serialize, serde::Deserialize)]
pub struct Measurements {
    #[serde(serialize_with = "option_temperature_celsius")]
    #[serde(deserialize_with = "f32_as_optional_temperature_in_celcius")]
    pub temperature: Option<Temperature>,

    #[serde(serialize_with = "option_pressure_pascals")]
    #[serde(deserialize_with = "f32_as_optional_pressure_in_pascals")]
    pub pressure: Option<Pressure>,

    #[serde(serialize_with = "option_distance_meters")]
    #[serde(deserialize_with = "f32_as_optional_distance_in_meters")]
    pub altitude: Option<Distance>,

    #[serde(serialize_with = "option_tuple_f32x3")]
    pub acceleration: Option<(f32, f32, f32)>,

    #[serde(serialize_with = "option_tuple_f32x3")]
    pub gyro: Option<(f32, f32, f32)>,

    #[serde(serialize_with = "option_tuple_f32x2")]
    pub rollpitch: Option<(f32, f32)>,

    pub nmea: Option<NmeaGga>,
}

fn option_temperature_celsius<S>(v: &Option<Temperature>, s: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    v.map(|v| v.as_celsius()).serialize(s)
}

fn f32_as_optional_temperature_in_celcius<'de, D>(
    deserializer: D,
) -> Result<Option<Temperature>, D::Error>
where
    D: Deserializer<'de>,
{
    let temperature: Option<f32> = de::Deserialize::deserialize(deserializer)?;
    Ok(temperature.map(Temperature::from_celsius))
}

fn option_pressure_pascals<S>(v: &Option<Pressure>, s: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    v.map(|v| v.as_pascals()).serialize(s)
}

fn f32_as_optional_pressure_in_pascals<'de, D>(
    deserializer: D,
) -> Result<Option<Pressure>, D::Error>
where
    D: Deserializer<'de>,
{
    let pressure: Option<f32> = de::Deserialize::deserialize(deserializer)?;
    Ok(pressure.map(Pressure::from_pascals))
}

fn option_distance_meters<S>(v: &Option<Distance>, s: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    v.map(|v| v.as_meters()).serialize(s)
}

fn f32_as_optional_distance_in_meters<'de, D>(deserializer: D) -> Result<Option<Distance>, D::Error>
where
    D: Deserializer<'de>,
{
    let distance: Option<f32> = de::Deserialize::deserialize(deserializer)?;
    Ok(distance.map(Distance::from_meters))
}

fn option_tuple_f32x2<S>(v: &Option<(f32, f32)>, serializer: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    match v {
        Some((x, y)) => (x, y).serialize(serializer),
        None => ((), ()).serialize(serializer),
    }
}

fn option_tuple_f32x3<S>(v: &Option<(f32, f32, f32)>, serializer: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    match v {
        Some((x, y, z)) => (x, y, z).serialize(serializer),
        None => ((), ()).serialize(serializer),
    }
}

#[cfg(feature = "defmt")]
impl defmt::Format for Measurements {
    fn format(&self, fmt: defmt::Formatter) {
        defmt::write!(
            fmt,
            "temp: {}, pres: {}, alt: {}, nmea: {}, acc: {}, gyro: {}, rollpitch: {}",
            OrError(&self.temperature.map(Celsius)),
            OrError(&self.pressure.map(HectoPascals)),
            OrError(&self.altitude.map(Meters)),
            OrError(&self.nmea),
            OrError(&self.acceleration),
            OrError(&self.gyro),
            OrError(&self.rollpitch),
        );
    }
}

struct Celsius(pub Temperature);

#[cfg(feature = "defmt")]
impl defmt::Format for Celsius {
    fn format(&self, fmt: defmt::Formatter) {
        defmt::write!(fmt, "{} °C", self.0.as_celsius());
    }
}

struct HectoPascals(pub Pressure);

#[cfg(feature = "defmt")]
impl defmt::Format for HectoPascals {
    fn format(&self, fmt: defmt::Formatter) {
        defmt::write!(fmt, "{} hPa", self.0.as_hectos());
    }
}

struct Meters(pub Distance);

#[cfg(feature = "defmt")]
impl defmt::Format for Meters {
    fn format(&self, fmt: defmt::Formatter) {
        defmt::write!(fmt, "{} m", self.0.as_meters());
    }
}

struct Ascii<'a>(pub &'a [u8]);

#[cfg(feature = "defmt")]
impl<'a> defmt::Format for Ascii<'a> {
    fn format(&self, fmt: defmt::Formatter) {
        defmt::write!(fmt, "{=[u8]:a}", self.0);
    }
}

struct OrError<'a, T>(pub &'a Option<T>);

#[cfg(feature = "defmt")]
impl<'a, T: defmt::Format> defmt::Format for OrError<'a, T> {
    fn format(&self, fmt: defmt::Formatter) {
        if let Some(v) = self.0 {
            defmt::write!(fmt, "{}", v);
        } else {
            defmt::write!(fmt, "ERROR");
        }
    }
}