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use rinex::constellation::Constellation;
use std::collections::HashMap;
use std::io::{prelude::*, BufReader};
use std::str::FromStr;
use thiserror::Error;
mod description;
mod reference;
pub mod bias;
pub mod datetime;
pub mod header;
pub mod receiver;
//pub mod troposphere;
use description::Description;
use header::{is_valid_header, Header};
use reference::Reference;
fn is_comment(line: &str) -> bool {
line.starts_with("*")
}
fn section_start(line: &str) -> Option<String> {
if line.starts_with("+") {
Some(line[1..].to_string())
} else {
None
}
}
fn section_end(line: &str) -> Option<String> {
if line.starts_with("-") {
Some(line[1..].to_string())
} else {
None
}
}
fn is_dotdotdot(line: &str) -> bool {
line.eq("...")
}
#[derive(Debug, Error)]
pub enum Error {
/// SINEX file should start with proper header
#[error("missing header delimiter")]
MissingHeader,
/// Failed to parse Header section
#[error("invalid header content")]
InvalidHeader,
/// Closing incorrect section or structure is not correct
#[error("faulty file structure")]
FaultySection,
/// Unknown section / category
#[error("unknown type of section")]
UnknownSection(String),
/// Failed to open given file
#[error("failed to open given file")]
FileError(#[from] std::io::Error),
/// Failed to parse integer number
#[error("failed to parse integer number")]
ParseIntError(#[from] std::num::ParseIntError),
/// Failed to parse Bias Mode
#[error("failed to parse bias mode")]
ParseBiasModeError(#[from] bias::header::BiasModeError),
/// Failed to parse Determination Method
#[error("failed to parse determination method")]
ParseMethodError(#[from] bias::DeterminationMethodError),
/// Failed to parse time system field
#[error("failed to parse time system")]
ParseTimeSystemError(#[from] bias::TimeSystemError),
}
#[derive(Debug, Clone)]
pub enum Record {
/// Bias (BIA) record case
BiasSolutions(Vec<bias::Solution>),
// /// Troposphere (TRO) record case
// TropoRecord(troposphere::Record),
// /// SINEX (SNX) record case
//SinexRecord(sinex::Record)
}
impl Record {
/// Unwraps Bias Solutions, if feasible
pub fn bias_solutions(&self) -> Option<&Vec<bias::Solution>> {
match self {
Self::BiasSolutions(r) => Some(r),
}
}
/*
/// Unwraps Troposphere Record, if feasible,
/// is [troposphere::Record] definition for more detail
pub fn tropo_record (&self) -> Option<&troposphere::Record> {
match self {
Self::TropoRecord(r) => Some(r),
_ => None,
}
}
*/
}
#[derive(Debug, Clone)]
pub struct Sinex {
/// Header section, is Document Type dependent
pub header: Header,
/// File Reference section
pub reference: Reference,
/// Possible `Input` Acknowledgemet, especially for data providers
pub acknowledgments: Vec<String>,
/// Possible `File Comments`
pub comments: Vec<String>,
/// File Description is Document Type dependent
pub description: Description,
/// Record
pub record: Record,
}
impl Sinex {
pub fn from_file(file: &str) -> Result<Self, Error> {
let file = std::fs::File::open(file)?;
let reader = BufReader::new(file);
let mut is_first = true;
let mut header = Header::default();
let mut reference: Reference = Reference::default();
let mut section = String::new();
let mut comments: Vec<String> = Vec::new();
let mut acknowledgments: Vec<String> = Vec::new();
let mut bias_description = bias::description::Description::default();
let mut bias_solutions: Vec<bias::Solution> = Vec::new();
//let mut trop_description = troposphere::Description::default();
//let mut trop_coordinates : Vec<troposphere::Coordinates> = Vec::new();
for line in reader.lines() {
let line = &line.unwrap();
if is_comment(line) {
continue;
}
if is_dotdotdot(line) {
continue;
}
if is_first {
if !is_valid_header(line) {
return Err(Error::MissingHeader);
}
if let Ok(hd) = Header::from_str(line) {
header = hd.clone()
}
is_first = false;
continue;
}
if let Some(s) = section_start(line) {
section = s.clone();
} else if let Some(s) = section_end(line) {
if !s.eq(§ion) {
return Err(Error::FaultySection);
}
} else if is_valid_header(line) {
break; // EOF
} else {
match section.as_str() {
"FILE/REFERENCE" => {
let (descriptor, content) = line.split_at(19);
match descriptor.trim() {
"INPUT" => reference = reference.with_input(content.trim()),
"OUTPUT" => reference = reference.with_output(content.trim()),
"DESCRIPTION" => reference = reference.with_description(content.trim()),
"SOFTWARE" => reference = reference.with_software(content.trim()),
"HARDWARE" => reference = reference.with_hardware(content.trim()),
"CONTACT" => reference = reference.with_contact(content.trim()),
_ => {},
}
},
"FILE/COMMENT" => comments.push(line.trim().to_string()),
"INPUT/ACKNOWLEDGMENTS" => acknowledgments.push(line.trim().to_string()),
"BIAS/DESCRIPTION" => {
let (descriptor, content) = line.split_at(41);
match descriptor.trim() {
"OBSERVATION_SAMPLING" => {
let sampling = u32::from_str_radix(content.trim(), 10)?;
bias_description = bias_description.with_sampling(sampling)
},
"PARAMETER_SPACING" => {
let spacing = u32::from_str_radix(content.trim(), 10)?;
bias_description = bias_description.with_spacing(spacing)
},
"DETERMINATION_METHOD" => {
let method = bias::DeterminationMethod::from_str(content.trim())?;
bias_description = bias_description.with_method(method)
},
"BIAS_MODE" => {
let mode = bias::header::BiasMode::from_str(content.trim())?;
bias_description = bias_description.with_bias_mode(mode)
},
"TIME_SYSTEM" => {
let system = bias::TimeSystem::from_str(content.trim())?;
bias_description = bias_description.with_time_system(system)
},
"RECEIVER_CLOCK_REFERENCE_GNSS" => {
if let Ok(c) = Constellation::from_1_letter_code(content.trim()) {
bias_description = bias_description.with_rcvr_clock_ref(c)
}
},
"SATELLITE_CLOCK_REFERENCE_OBSERVABLES" => {
let items: Vec<&str> =
content.trim().split_ascii_whitespace().collect();
if let Ok(c) = Constellation::from_1_letter_code(items[0]) {
if items.len() == 1 {
// --> no observable given
let mut map: HashMap<Constellation, Vec<String>> =
HashMap::new();
map.insert(c, Vec::new());
bias_description.sat_clock_ref = map.clone()
} else {
for i in 1..items.len() {
bias_description =
bias_description.with_sat_clock_ref(c, items[i])
}
}
}
},
_ => {},
}
},
/*
"TROP/DESCRIPTION" => {
let (descriptor, content) = line.split_at(41);
/*match descriptor.trim() {
"ELEVATION CUTOFF ANGLE" => {
let angle = u32::from_str_radix(content.trim(), 10)?;
},
"SAMPLING INTERVAL" => {
let interval = u32::from_str_radix(content.trim(), 10)?;
trop_description = trop_description
.with_sampling_interval(interval)
},
"SAMPLING TROP" => {
let interval = u32::from_str_radix(content.trim(), 10)?;
trop_description = trop_description
.with_tropo_sampling(interval)
},
"TROP MAPPING FUNCTION" => {
let functions :Vec<&str> = content
.split_ascii_whitespace()
.collect();
for func in functions {
trop_description = trop_description
.with_mapping_function(func)
}
},
"SOLUTION_FIELDS_1" => {
let fields :Vec<&str> = content
.split_ascii_whitespace()
.collect();
for field in fields {
trop_description = trop_description
.with_solution_field(field)
}
},
_ => {},
}*/
},*/
"BIAS/SOLUTION" => {
if let Ok(sol) = bias::Solution::from_str(line.trim()) {
bias_solutions.push(sol)
}
},
/*
"TROP/STA_COORDINATES" => {
if let Ok(coords) = troposphere::Coordinates::from_str(line.trim()) {
trop_coordinates.push(coords)
}
},*/
_ => return Err(Error::UnknownSection(section)),
}
}
}
//let doctype = header.doc_type.clone();
Ok(Self {
header,
reference,
acknowledgments,
comments,
description: Description::BiasDescription(bias_description),
record: Record::BiasSolutions(bias_solutions),
})
}
}