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use super::util;
use crate::prover::{ProverInput, ProverResult};
use elf::{endian::AnyEndian, ElfBytes};
use plonky2::plonk::config::{GenericConfig, PoseidonGoldilocksConfig};
use zkm_emulator::state::State;
use zkm_emulator::utils::split_prog_into_segs;
use zkm_prover::generation::state::{AssumptionReceipts, Receipt};
#[allow(clippy::type_complexity)]
pub fn prove_stark(
input: &ProverInput,
storedir: &str,
result: &mut ProverResult,
) -> anyhow::Result<(bool, Option<Vec<u8>>, Option<Vec<u8>>)> {
let seg_path = format!("{}/segments", storedir);
let seg_size = input.seg_size as usize;
let file = ElfBytes::<AnyEndian>::minimal_parse(input.elf.as_slice())
.expect("Opening elf file failed");
let mut state = State::load_elf(&file);
state.patch_elf(&file);
state.patch_stack(vec![]);
state.input_stream.push(input.public_inputstream.clone());
state.input_stream.push(input.private_inputstream.clone());
for receipt_input in input.receipt_inputs.iter() {
state.input_stream.push(receipt_input.clone());
}
let split_start_time = std::time::Instant::now();
let (total_steps, seg_num, state) = split_prog_into_segs(state, &seg_path, "", seg_size);
result.output_stream = state.public_values_stream.clone();
result.total_steps = total_steps as u64;
result.split_cost = split_start_time.elapsed().as_millis() as u64;
if input.execute_only {
return Ok((false, None, None));
}
log::info!("[The seg_num is:{} ]", &seg_num);
const D: usize = 2;
type C = PoseidonGoldilocksConfig;
type F = <C as GenericConfig<D>>::F;
let mut receipts: AssumptionReceipts<F, C, D> = vec![];
for receipt_data in input.receipts.iter() {
let receipt: Receipt<F, C, D> =
bincode::deserialize(receipt_data).map_err(|e| anyhow::anyhow!(e))?;
receipts.push(receipt.into());
}
let receipt = util::prove_segments(&seg_path, "", storedir, "", "", seg_num, 0, receipts)?;
let receipt_data = bincode::serialize(&receipt).map_err(|e| anyhow::anyhow!(e))?;
Ok((
seg_num > 1,
Some(receipt_data),
Some(receipt.claim().elf_id),
))
}
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