// Back - An extremely simple git issue tracking system. Inspired by tvix's
// panettone
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This file is part of Back.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/agpl.txt>.

use std::fmt::Display;

use gix::Repository;
use serde::Deserialize;
use serde_json::Value;

use super::{
    identity::{Author, RawAuthor},
    operation::Operation,
};

#[derive(Deserialize, Debug, PartialEq, Eq, Clone)]
#[serde(from = "Value")]
pub struct Id {
    value: String,
}
impl From<Value> for Id {
    fn from(value: Value) -> Self {
        Self::from(&value)
    }
}
impl From<&Value> for Id {
    fn from(value: &Value) -> Self {
        Self {
            value: value.as_str().expect("This should  be a string").to_owned(),
        }
    }
}
impl From<gix::Id<'_>> for Id {
    fn from(value: gix::Id<'_>) -> Self {
        Self {
            value: value.shorten().expect("This should work?").to_string(),
        }
    }
}
impl Display for Id {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        self.value.fmt(f)
        // let shortend = self.value.shorten().expect("This should work.");
        // f.write_str(shortend.to_string().as_str())
    }
}

#[derive(Debug)]
pub struct Entity {
    pub id: Id,
    pub author: Author,
    pub operations: Vec<Operation>,
}

impl Entity {
    pub fn from_raw<'a>(repo: &'a Repository, raw: RawEntity, id: gix::Id<'a>) -> Self {
        Self {
            id: Id::from(id),
            author: Author::construct(repo, raw.author),
            operations: raw.operations,
        }
    }
}

#[derive(Deserialize)]
pub struct RawEntity {
    pub author: RawAuthor,

    #[serde(alias = "ops")]
    pub operations: Vec<Operation>,
}