from flask import abort, render_template, request, session, url_for
from flask_login import current_user
from werkzeug.utils import redirect

from app import current_service, job_api_client
from app.formatters import convert_time_unixtimestamp, get_time_left
from app.main import main
from app.utils.pagination import (
    generate_next_dict,
    generate_pagination_pages,
    generate_previous_dict,
    get_page_from_request,
)
from app.utils.user import user_has_permissions


@main.route("/activity/services/<uuid:service_id>")
@user_has_permissions()
def all_jobs_activity(service_id):
    if session.get("invited_user_id"):
        session.pop("invited_user_id", None)
        session["service_id"] = service_id

    if not current_user.has_permissions("view_activity"):
        return redirect(url_for("main.choose_template", service_id=service_id))
    service_data_retention_days = 7
    page = get_page_from_request()
    jobs = job_api_client.get_page_of_jobs(service_id, page=page)
    all_jobs_dict = generate_job_dict(jobs)
    prev_page, next_page, pagination = handle_pagination(jobs, service_id, page)

    return render_template(
        "views/activity/all-activity.html",
        all_jobs_dict=all_jobs_dict,
        service_data_retention_days=service_data_retention_days,
        next_page=next_page,
        prev_page=prev_page,
        pagination=pagination,
        jobs=jobs
    )


def handle_pagination(jobs, service_id, page):
    if page is None:
        abort(404, "Invalid page argument ({}).".format(request.args.get("page")))
    prev_page = generate_previous_dict("main.all_jobs_activity", service_id, page) if page > 1 else None
    next_page = generate_next_dict("main.all_jobs_activity", service_id, page) if jobs["links"].get("next") else None
    pagination = generate_pagination_pages(jobs["total"], jobs['page_size'], page)
    return prev_page, next_page, pagination


def generate_job_dict(jobs):
    return [
        {
            "job_id": job["id"],
            "time_left": get_time_left(job["created_at"]),
            "download_link": url_for(".view_job_csv", service_id=current_service.id, job_id=job["id"]),
            "view_job_link": url_for(".view_job", service_id=current_service.id, job_id=job["id"]),
            "created_at": job["created_at"],
            "time_sent_data_value": convert_time_unixtimestamp(
                job["processing_finished"] if job["processing_finished"]
                else job["processing_started"] if job["processing_started"]
                else job["created_at"]
            ),
            "processing_finished": job["processing_finished"],
            "processing_started": job["processing_started"],
            "created_by": job["created_by"],
            "template_name": job["template_name"]
        }
        for job in jobs["data"]
    ]