/*
 * Copyright (C) 2023  Aravinth Manivannan <realaravinth@batsense.net>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
//! Pull requests associated to a repository within a forge (Gitea, GitLab, etc.)
use serde::{Deserialize, Serialize};

use crate::{OpenCloseState, Reaction};

/// Pull requests associated to a repository within a forge (Gitea, GitLab, etc.)
#[derive(Clone, Debug, Serialize, Deserialize, Default, Eq, PartialEq)]
pub struct PullRequest {
    /// Unique identifier, relative to the repository
    pub index: String,

    /// Unique identifier of the user who authored the pull request.
    pub poster_id: String,

    /// Short description displayed as the title.
    pub title: String,

    /// Long, multiline, description
    pub content: String,

    /// Name of the milestone
    pub milestone: String,

    /// state of the pull request
    pub state: OpenCloseState,

    /// A locked pull request issue can only be modified by privileged users
    pub is_locked: bool,

    // TODO: add validation for format "date-time"
    /// Creation time
    pub created: String,

    // TODO: add validation for format "date-time"
    /// Last update time
    pub updated: String,

    // TODO: add validation for format "date-time"
    /// The last time 'state' changed to 'closed'
    pub closed: Option<String>,

    ///  List of labels.
    pub labels: Option<Vec<String>>,

    /// List of reactions
    pub reactions: Option<Vec<Reaction>>,

    ///  List of assignees.
    pub assignees: Option<Vec<String>>,

    /// URL from which the patch of the pull request can be retrieved.
    pub patch_url: String,

    /// True if the pull request was merged
    pub merged: bool,

    // TODO: add validation for format "date-time"
    /// The time when the pull request was merged.
    pub merged_time: Option<String>,

    /// The SHA of the merge commit
    pub merged_commit_sha: Option<String>,

    /// The changes proposed in the pull request.
    pub head: Option<PullRequestRef>,

    /// The branch where the pull request changes in the head are to be merged.
    pub base: Option<PullRequestRef>,
}

/// PullRequest reference to a commit
/// The location of a commit, including the URL of the repository where it can be found
#[derive(Clone, Debug, Serialize, Deserialize, Default, Eq, PartialEq)]
pub struct PullRequestRef {
    /// URL of the repository where the commit is located.
    pub clone_url: String,

    /// Target branch in the repository.
    ///
    /// NOTE: Actual property is called "ref" but it is a keyword in Rust so we are using
    /// "reference". However, "reference" will automatically be renamed to "ref" while serializing
    /// and vice versa
    #[serde(rename(serialize = "ref", deserialize = "ref"))]
    pub reference: Option<String>,

    /// SHA of the commit
    pub sha: String,

    /// Name of the project that contains the git repository.
    pub repo_name: String,

    /// Name of the user or organization that contains the project.
    pub owner_name: String,
}