## Task 2: emit the synthetic trajectory fixtures to tools/fixtures/ as JSONL.
## Run with:
##   nim c -r common_libs/tests/gen_synthetic_fixtures.nim
## Deterministic: the random-walk fixture is seeded.

import std/[os, strformat]
import gun_harness/offline_range

const outDir = currentSourcePath().parentDir.parentDir.parentDir / "tools" / "fixtures"

proc main() =
  createDir(outDir)
  for name in SyntheticFixtureNames:
    let fx = synthesizeByName(name)
    let path = outDir / (name & ".jsonl")
    saveFixture(path, fx)
    echo fmt"wrote {path}  ({fx.states.len} ticks, source={fx.meta.source})"
  echo "done."

when isMainModule:
  main()