//! Copyright (C) 2022, Dmitriy Pleshevskiy <dmitriy@ideascup.me>
//!
//! tas is free software: you can redistribute it and/or modify
//! it under the terms of the GNU General Public License as published by
//! the Free Software Foundation, either version 3 of the License, or
//! (at your option) any later version.
//!
//! tas is distributed in the hope that it will be useful,
//! but WITHOUT ANY WARRANTY; without even the implied warranty of
//! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//! GNU General Public License for more details.
//!
//! You should have received a copy of the GNU General Public License
//! along with tas.  If not, see <https://www.gnu.org/licenses/>.
//!
pub mod sqlite;

use std::path::PathBuf;

use crate::domain;

#[derive(Debug)]
pub enum Error {
    Connect,
    PrepareQuery,
    QueryData,
    NotFound,
    InvalidData,
    InsertData,
    UpdateData,
    RemoveData,
}

impl std::fmt::Display for Error {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Error::Connect => f.write_str("Cannot connect to the repository"),
            Error::PrepareQuery => f.write_str("Cannot prepare query"),
            Error::QueryData => f.write_str("Cannot query data"),
            Error::NotFound => f.write_str("Cannot find data"),
            Error::InvalidData => f.write_str("Invalid data format"),
            Error::InsertData => f.write_str("Cannot insert data"),
            Error::UpdateData => f.write_str("Cannot update data"),
            Error::RemoveData => f.write_str("Cannot remove data"),
        }
    }
}

impl std::error::Error for Error {}

pub struct InsertTaskData {
    pub name: String,
    pub project: Option<String>,
    pub link: Option<String>,
    pub dir_path: Option<PathBuf>,
    pub index: Option<usize>,
}

pub struct UpdateTaskData {
    pub name: Option<String>,
    pub project: Option<Option<String>>,
    pub link: Option<Option<String>>,
    pub dir_path: Option<Option<PathBuf>>,
}

pub trait Repository {
    fn get_current_task_opt(&self) -> Result<Option<domain::CurrentTaskInfo>, Error>;

    fn get_task_opt(&self, id: domain::TaskIdx) -> Result<Option<domain::Task>, Error>;

    fn get_tasks(&self, finished: bool) -> Result<Vec<domain::Task>, Error>;

    fn remove_task(&self, id: domain::TaskIdx) -> Result<domain::Task, Error>;

    fn update_task(
        &self,
        id: domain::TaskIdx,
        update_data: UpdateTaskData,
    ) -> Result<domain::Task, Error>;

    fn insert_task(&self, insert_data: InsertTaskData) -> Result<domain::Task, Error>;

    fn start_task(&self, id: domain::TaskIdx) -> Result<domain::Task, Error>;

    fn stop_task(&self) -> Result<domain::Task, Error>;

    fn finish_task(&self) -> Result<domain::Task, Error>;
}