import sqlite3
import datalad.api as dl
import datalad.config as dlc
import os
from .git_tools import move_submodule
import shutil


def create_project(path, uuid, aliases=None, code=None):
    """
    Create a new project entry in the database.

    Parameters
    ----------
    path: str
        The path to the backlogger folder.
    uuid: str
        The uuid of the project.
    name: str (optional)
        Costum name for the project (e.g. 'cA determination on exponential clover').
    code: str (optional)
        The code that was used to create the measurements.
    """
    conn = sqlite3.connect(path + "/backlogger.db")
    c = conn.cursor()
    known_projects = c.execute("SELECT * FROM projects WHERE id=?", (uuid,))
    if known_projects.fetchone():
        raise ValueError("Project already imported, use update_project() instead.")

    dl.unlock(path + "/backlogger.db", dataset=path)
    c.execute("INSERT INTO projects (id, aliases, code, created_at, updated_at) VALUES (?, ?, ?, datetime('now'), datetime('now'))", (uuid, aliases, code))
    conn.commit()
    conn.close()
    dl.save(path + "/backlogger.db", message="Added entry for project " + uuid + " to database", dataset=path)


def import_project(path, url, aliases=None, code=None, isDataset=True):
    """
    Parameters
    ----------

    url: str
        The url of the project to import. This can be any url that datalad can handle.
    path: str
        The path to the backlogger folder.
    aliases: list[str]
        Custom name of the project, alias of the project.
    code: str
        Code that was used to create the measurements.

    Import a datalad dataset into the backlogger.

    Parameters
    ----------
    path: str
        The path to the backlogger directory.
    url: str
        The url of the project to import. This can be any url that datalad can handle.
        Also supported are non-datalad datasets, which will be converted to datalad datasets,
        in order to receive a uuid and have a consistent interface.

    """
    tmp_path = path + '/projects/tmp'
    if not isDataset:
        dl.create(path + '/projects/tmp', dataset=path)
        shutil.copytree(url + "/*", path + '/projects/tmp/')
        dl.save(path + '/projects/tmp', dataset=path)
    else:
        dl.install(path=tmp_path, source=url, dataset=path)
    tmp_ds = dl.Dataset(tmp_path)
    conf = dlc.ConfigManager(tmp_ds)
    uuid = conf.get("datalad.dataset.id")
    if not uuid:
        raise ValueError("The dataset does not have a uuid!")
    if not os.path.exists(path + "/projects/" + uuid):
        dl.unlock(path + "/backlogger.db", dataset=path)
        create_project(path, uuid, aliases, code)
        move_submodule(path, 'projects/tmp', 'projects/' + uuid)
        os.mkdir(path + '/import_scripts/' + uuid)
        dl.save([path + "/backlogger.db", 'projects/' + uuid], message="Import project from " + url, dataset=path)
    else:
        print("Project is already imported.")
    # make this more concrete
    return uuid