#
# This file is distributed under the MIT License. See LICENSE.md for details.
#

# Declares a python module as a target
# Named arguments:
#  - TARGET_NAME: the name of the CMake target to be created
#  - MODULE_FILES: list of relative paths of the python module sources
#  - MODULE_GENERATED_FILES: list of relative paths of the python module generated sources
# The module sources will be copied to the build directory (in the lib/python folder)
# and installed in /lib/python.
function(python_module)
  set(options)
  set(oneValueArgs TARGET_NAME)
  set(multiValueArgs MODULE_FILES MODULE_GENERATED_FILES)
  cmake_parse_arguments(PYTHON_MODULE "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})

  foreach(MODULE_FILE ${PYTHON_MODULE_MODULE_FILES})
    configure_file("${MODULE_FILE}" "${CMAKE_BINARY_DIR}/lib/python/${MODULE_FILE}" COPYONLY)
  endforeach()

  foreach(MODULE_FILE ${PYTHON_MODULE_MODULE_FILES} ${PYTHON_MODULE_MODULE_GENERATED_FILES})
    # Copy module in the root at install time
    get_filename_component(MODULE_FILE_DIR "${MODULE_FILE}" DIRECTORY)
    install(
      FILES "${CMAKE_BINARY_DIR}/lib/python/${MODULE_FILE}"
      DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/python/${MODULE_FILE_DIR}"
    )
  endforeach()
  add_custom_target("${PYTHON_MODULE_TARGET_NAME}" DEPENDS ${PYTHON_MODULE_MODULE_FILES} ${PYTHON_MODULE_MODULE_GENERATED_FILES})
endfunction()

#
# Check that required python dependencies are available
#
file(STRINGS "requirements.txt"
  REQUIREMENTS
  REGEX "^[^#].+$"
)
check_python_requirements(${REQUIREMENTS})

#
# Install scripts
#
set(SCRIPTS
  "scripts/revng"
  "scripts/revng-merge-dynamic"
  "scripts/revng-model-compare"
  "scripts/revng-model-dump"
  "scripts/revng-model-to-json"
)
foreach(SCRIPT ${SCRIPTS})
  get_filename_component(SCRIPT_FILENAME "${SCRIPT}" NAME)
  # revng script needs configure_file *without* COPYONLY
  configure_file("${SCRIPT}" "${CMAKE_BINARY_DIR}/bin/${SCRIPT_FILENAME}")
  install(
    PROGRAMS "${CMAKE_BINARY_DIR}/bin/${SCRIPT_FILENAME}"
    TYPE BIN
  )
endforeach()

#
# Generate Python classes from JSON schema
#
set(PYTHON_GENERATED_MODEL_PATH "revng/model/v1/_generated.py")

add_custom_command(
  OUTPUT "${CMAKE_BINARY_DIR}/lib/python/${PYTHON_GENERATED_MODEL_PATH}"
  COMMAND "datamodel-codegen"
  ARGS
    --base-class .base.MonkeyPatchingBaseClass
    --target-python-version 3.6
    --input "${MODEL_JSONSCHEMA_PATH}"
    > "${CMAKE_BINARY_DIR}/lib/python/${PYTHON_GENERATED_MODEL_PATH}"
  DEPENDS generate-revngModel-tuple-tree-code
)
add_custom_target(python-model-generated DEPENDS "${CMAKE_BINARY_DIR}/lib/python/${PYTHON_GENERATED_MODEL_PATH}")
add_dependencies(revng-lift python-model-generated)

#
# Install revng.model (including autogenerated classes)
#
set(PYTHON_MODEL_FILES
  revng/model/__init__.py
  revng/model/_common/__init__.py
  revng/model/_common/base.py
  revng/model/_common/monkeypatches.py
  revng/model/v1/__init__.py
  revng/model/v1/base.py
  revng/model/v1/metaaddress.py
  revng/model/v1/reference.py
)
python_module(
  TARGET_NAME python-model
  MODULE_FILES ${PYTHON_MODEL_FILES}
  MODULE_GENERATED_FILES "${PYTHON_GENERATED_MODEL_PATH}"
)

set(MERGE_DYNAMIC_MODULE_FILES
  revng/cli/merge_dynamic/__init__.py
  revng/cli/merge_dynamic/log.py
  revng/cli/merge_dynamic/merge_dynamic.py
  revng/cli/merge_dynamic/parsed_elf.py
  revng/cli/merge_dynamic/util.py
)
python_module(
  TARGET_NAME revng-merge-dynamic
  MODULE_FILES ${MERGE_DYNAMIC_MODULE_FILES}
)
add_dependencies(revng-lift revng-merge-dynamic)

#
# Install revng.model_dump
#
set(DUMP_MODEL_MODULE_FILES
  "revng/cli/model_dump/__init__.py"
  "revng/cli/model_dump/__main__.py"
)
python_module(
  TARGET_NAME revng-dump-model
  MODULE_FILES ${DUMP_MODEL_MODULE_FILES}
)
add_dependencies(revng-lift revng-dump-model)

#
# Install revng.cli.support
#
python_module(
  TARGET_NAME revng-python-support
  MODULE_FILES "revng/cli/support.py"
)

#
# Install revng.cli.translate
#
python_module(
    TARGET_NAME revng-python-translate
    MODULE_FILES "revng/cli/translate/__init__.py"
                 "revng/cli/translate/pipelines/isolate-translate.yml"
                 "revng/cli/translate/pipelines/translate.yml"
)