#!/usr/bin/env python
"""Build/compile a CODESYS project via ScriptEngine."""

from __future__ import print_function

import os

from _common import emit, load_payload


def main():
    payload = load_payload()
    project_path = payload.get("project_path")
    save_after_build = bool(payload.get("save_after_build", True))
    if not project_path:
        raise ValueError("project_path is required.")
    pp = os.path.abspath(os.path.expanduser(project_path))
    if not os.path.exists(pp):
        raise RuntimeError("Project path does not exist: {0}".format(pp))
    if "projects" not in globals():
        raise RuntimeError("Run through CODESYS ScriptEngine (--runscript).")

    if projects.primary:
        projects.primary.close()
    proj = projects.open(pp, primary=True, allow_readonly=False)
    app = proj.active_application
    if app is None:
        raise RuntimeError("No active application found in project.")

    app.build()
    if save_after_build:
        proj.save()
    proj.close()

    emit(
        {
            "ok": True,
            "action": "build_project",
            "project_path": pp,
            "save_after_build": save_after_build,
        }
    )


if __name__ == "__main__":
    main()