1use arrow::array::RecordBatch;
2
3use fmi::{
4    fmi3::{Common, import::Fmi3Import},
5    traits::{FmiImport, FmiInstance},
6};
7
8use crate::{
9    Error,
10    options::{CoSimulationOptions, ModelExchangeOptions},
11    sim::{
12        InputState, RecorderState, SimState, SimStateTrait,
13        params::SimParams,
14        traits::{ImportSchemaBuilder, SimInitialize},
15    },
16};
17
18use super::{
19    SimStats,
20    io::StartValues,
21    traits::{FmiSim, InstSetValues},
22};
23
24#[cfg(feature = "cs")]
25mod cs;
26mod io;
27#[cfg(feature = "me")]
28mod me;
29mod schema;
30
31macro_rules! impl_sim_apply_start_values {
32    ($inst:ty) => {
33        impl super::traits::SimApplyStartValues<$inst> for super::SimState<$inst> {
34            fn apply_start_values(
35                &mut self,
36                start_values: &StartValues<<$inst as FmiInstance>::ValueRef>,
37            ) -> Result<(), Error> {
38                if !start_values.structural_parameters.is_empty() {
39                    self.inst
40                        .enter_configuration_mode()
41                        .map_err(fmi::Error::from)?;
42                    for (vr, ary) in &start_values.structural_parameters {
43                        self.inst.set_array(&[(*vr)], ary);
45                    }
46                    self.inst
47                        .exit_configuration_mode()
48                        .map_err(fmi::Error::from)?;
49                }
50
51                start_values.variables.iter().for_each(|(vr, ary)| {
52                    self.inst.set_array(&[*vr], ary);
53                });
54
55                Ok(())
56            }
57        }
58    };
59}
60
61#[cfg(feature = "me")]
62impl_sim_apply_start_values!(fmi::fmi3::instance::InstanceME<'_>);
63#[cfg(feature = "cs")]
64impl_sim_apply_start_values!(fmi::fmi3::instance::InstanceCS<'_>);
65
66impl FmiSim for Fmi3Import {
67    #[cfg(feature = "me")]
68    fn simulate_me(
69        &self,
70        options: &ModelExchangeOptions,
71        input_data: Option<RecordBatch>,
72    ) -> Result<(RecordBatch, SimStats), Error> {
73        use crate::sim::{solver, traits::SimMe};
74        use fmi::fmi3::instance::InstanceME;
75
76        let sim_params =
77            SimParams::new_from_options(&options.common, self.model_description(), true, false);
78
79        let start_values = self.parse_start_values(&options.common.initial_values)?;
80        let input_state = InputState::new(self, input_data)?;
81        let recorder_state = RecorderState::new(self, &sim_params);
82
83        let mut sim_state =
84            SimState::<InstanceME>::new(self, sim_params, input_state, recorder_state)?;
85        sim_state.initialize(start_values, options.common.initial_fmu_state_file.as_ref())?;
86        let stats = sim_state.main_loop::<solver::Euler>(())?;
87
88        Ok((sim_state.recorder_state.finish(), stats))
89    }
90
91    #[cfg(feature = "cs")]
92    fn simulate_cs(
93        &self,
94        options: &CoSimulationOptions,
95        input_data: Option<RecordBatch>,
96    ) -> Result<(RecordBatch, SimStats), Error> {
97        use fmi::fmi3::instance::InstanceCS;
98
99        let sim_params = SimParams::new_from_options(
100            &options.common,
101            self.model_description(),
102            options.event_mode_used,
103            options.early_return_allowed,
104        );
105
106        let start_values = self.parse_start_values(&options.common.initial_values)?;
107        let input_state = InputState::new(self, input_data)?;
108        let output_state = RecorderState::new(self, &sim_params);
109
110        let mut sim_state =
111            SimState::<InstanceCS>::new(self, sim_params, input_state, output_state)?;
112        sim_state.initialize(start_values, options.common.initial_fmu_state_file.as_ref())?;
113        let stats = sim_state.main_loop()?;
114
115        Ok((sim_state.recorder_state.finish(), stats))
116    }
117}