import argparse
import sys

from praktika.html_prepare import Html
from praktika.utils import Utils
from praktika.validator import Validator
from praktika.yaml_generator import YamlGenerator


def create_parser():
    parser = argparse.ArgumentParser(prog="python3 -m praktika")

    subparsers = parser.add_subparsers(dest="command", help="Available subcommands")

    run_parser = subparsers.add_parser("run", help="Job Runner")
    run_parser.add_argument("--job", help="Job Name", type=str, required=True)
    run_parser.add_argument(
        "--workflow",
        help="Workflow Name (required if job name is not uniq per config)",
        type=str,
        default="",
    )
    run_parser.add_argument(
        "--no-docker",
        help="Do not run job in docker even if job config says so, for local test",
        action="store_true",
    )
    run_parser.add_argument(
        "--docker",
        help="Custom docker image for job run, for local test",
        type=str,
        default="",
    )
    run_parser.add_argument(
        "--param",
        help="Custom parameter to pass into a job script, it's up to job script how to use it, for local test",
        type=str,
        default=None,
    )
    run_parser.add_argument(
        "--test",
        help="Custom parameter to pass into a job script, it's up to job script how to use it, for local test",
        type=str,
        default="",
    )
    run_parser.add_argument(
        "--pr",
        help="PR number. Optional parameter for local run. Set if you want an required artifact to be uploaded from CI run in that PR",
        type=int,
        default=None,
    )
    run_parser.add_argument(
        "--sha",
        help="Commit sha. Optional parameter for local run. Set if you want an required artifact to be uploaded from CI run on that sha, head sha will be used if not set",
        type=str,
        default=None,
    )
    run_parser.add_argument(
        "--branch",
        help="Commit sha. Optional parameter for local run. Set if you want an required artifact to be uploaded from CI run on that branch, main branch name will be used if not set",
        type=str,
        default=None,
    )
    run_parser.add_argument(
        "--ci",
        help="When not set - dummy env will be generated, for local test",
        action="store_true",
        default="",
    )

    _yaml_parser = subparsers.add_parser("yaml", help="Generates Yaml Workflows")

    _html_parser = subparsers.add_parser("html", help="Uploads HTML page for reports")

    return parser


if __name__ == "__main__":
    parser = create_parser()
    args = parser.parse_args()

    if args.command == "yaml":
        Validator().validate()
        YamlGenerator().generate()
    elif args.command == "html":
        Html.prepare()
    elif args.command == "run":
        from praktika.mangle import _get_workflows
        from praktika.runner import Runner

        workflows = _get_workflows(name=args.workflow or None)
        job_workflow_pairs = []
        for workflow in workflows:
            job = workflow.find_job(args.job, lazy=True)
            if job:
                job_workflow_pairs.append((job, workflow))
        if not job_workflow_pairs:
            Utils.raise_with_error(
                f"Failed to find job [{args.job}] workflow [{args.workflow}]"
            )
        elif len(job_workflow_pairs) > 1:
            Utils.raise_with_error(
                f"More than one job [{args.job}] found - try specifying workflow name with --workflow"
            )
        else:
            job, workflow = job_workflow_pairs[0][0], job_workflow_pairs[0][1]
            print(f"Going to run job [{job.name}], workflow [{workflow.name}]")
            Runner().run(
                workflow=workflow,
                job=job,
                docker=args.docker,
                local_run=not args.ci,
                no_docker=args.no_docker,
                param=args.param,
                test=args.test,
                pr=args.pr,
                branch=args.branch,
                sha=args.sha,
            )
    else:
        parser.print_help()
        sys.exit(1)