Import('env', 'envCython', 'arch')

gen = "c_generated_code"

casadi_model = [
  f'{gen}/lat_model/lat_expl_ode_fun.c',
  f'{gen}/lat_model/lat_expl_vde_forw.c',
]

casadi_cost_y = [
  f'{gen}/lat_cost/lat_cost_y_fun.c',
  f'{gen}/lat_cost/lat_cost_y_fun_jac_ut_xt.c',
  f'{gen}/lat_cost/lat_cost_y_hess.c',
]

casadi_cost_e = [
  f'{gen}/lat_cost/lat_cost_y_e_fun.c',
  f'{gen}/lat_cost/lat_cost_y_e_fun_jac_ut_xt.c',
  f'{gen}/lat_cost/lat_cost_y_e_hess.c',
]

casadi_cost_0 = [
  f'{gen}/lat_cost/lat_cost_y_0_fun.c',
  f'{gen}/lat_cost/lat_cost_y_0_fun_jac_ut_xt.c',
  f'{gen}/lat_cost/lat_cost_y_0_hess.c',
]

build_files = [f'{gen}/acados_solver_lat.c'] + casadi_model + casadi_cost_y + casadi_cost_e + casadi_cost_0

# extra generated files used to trigger a rebuild
generated_files = [
  f'{gen}/Makefile',

  f'{gen}/main_lat.c',
  f'{gen}/main_sim_lat.c',
  f'{gen}/acados_solver_lat.h',
  f'{gen}/acados_sim_solver_lat.h',
  f'{gen}/acados_sim_solver_lat.c',
  f'{gen}/acados_solver.pxd',

  f'{gen}/lat_model/lat_expl_vde_adj.c',

  f'{gen}/lat_model/lat_model.h',
  f'{gen}/lat_constraints/lat_constraints.h',
  f'{gen}/lat_cost/lat_cost.h',
] + build_files

acados_dir = '#third_party/acados'
acados_templates_dir = '#third_party/acados/acados_template/c_templates_tera'

source_list = ['lat_mpc.py',
  '#selfdrive/modeld/constants.py',
  f'{acados_dir}/include/acados_c/ocp_nlp_interface.h',
  f'{acados_templates_dir}/acados_solver.in.c',
]

lenv = env.Clone()
lenv.Clean(generated_files, Dir(gen))

generated_lat = lenv.Command(generated_files,
                             source_list,
                             f"cd {Dir('.').abspath} && python3 lat_mpc.py")

lenv["CFLAGS"].append("-DACADOS_WITH_QPOASES")
lenv["CXXFLAGS"].append("-DACADOS_WITH_QPOASES")
lenv["CCFLAGS"].append("-Wno-unused")
if arch != "Darwin":
  lenv["LINKFLAGS"].append("-Wl,--disable-new-dtags")
lib_solver = lenv.SharedLibrary(f"{gen}/acados_ocp_solver_lat",
                                build_files,
                                LIBS=['m', 'acados', 'hpipm', 'blasfeo', 'qpOASES_e'])

# generate cython stuff
acados_ocp_solver_pyx = File("#third_party/acados/acados_template/acados_ocp_solver_pyx.pyx")
acados_ocp_solver_common = File("#third_party/acados/acados_template/acados_solver_common.pxd")
libacados_ocp_solver_pxd = File(f'{gen}/acados_solver.pxd')
libacados_ocp_solver_c = File(f'{gen}/acados_ocp_solver_pyx.c')

lenv2 = envCython.Clone()
lenv2["LINKFLAGS"] += [lib_solver[0].get_labspath()]
lenv2.Command(libacados_ocp_solver_c,
  [acados_ocp_solver_pyx, acados_ocp_solver_common, libacados_ocp_solver_pxd],
  f'cython' + \
  f' -o {libacados_ocp_solver_c.get_labspath()}' + \
  f' -I {libacados_ocp_solver_pxd.get_dir().get_labspath()}' + \
  f' -I {acados_ocp_solver_common.get_dir().get_labspath()}' + \
  f' {acados_ocp_solver_pyx.get_labspath()}')
lib_cython = lenv2.Program(f'{gen}/acados_ocp_solver_pyx.so', [libacados_ocp_solver_c])
lenv2.Depends(lib_cython, lib_solver)
