// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by a GPL license that can be found in the LICENSE file.
module main

import veb
import validation
import time

struct Comment {
mut:
    id         int @[primary; sql: serial]
    author_id  int
    issue_id   int
    created_at int
    text       string
}

@['/:username/:repo_name/comments'; post]
pub fn (mut app App) handle_add_comment(username string, repo_name string) veb.Result {
    app.find_repo_by_name_and_username(repo_name, username) or { return ctx.not_found() }
    text := ctx.form['text']
    issue_id := ctx.form['issue_id']
    is_text_empty := validation.is_string_empty(text)
    is_issue_id_empty := validation.is_string_empty(issue_id)
    if is_text_empty || is_issue_id_empty || !ctx.logged_in {
        ctx.error('Issue comment is not valid')
        return app.issue(mut ctx, username, repo_name, issue_id)
    }
    app.add_issue_comment(ctx.user.id, issue_id.int(), text) or {
        ctx.error('There was an error while inserting the comment')
        return app.issue(mut ctx, username, repo_name, issue_id)
    }
    // TODO: count comments
    app.increment_issue_comments(issue_id.int()) or { app.info(err.str()) }
    return ctx.redirect('/${username}/${repo_name}/issue/${issue_id}')
}

fn (mut app App) add_issue_comment(author_id int, issue_id int, text string) ! {
    comment := Comment{
        author_id:  author_id
        issue_id:   issue_id
        created_at: int(time.now().unix())
        text:       text
    }

    sql app.db {
        insert comment into Comment
    }!
}

fn (mut app App) get_all_issue_comments(issue_id int) []Comment {
    comments := sql app.db {
        select from Comment where issue_id == issue_id
    } or { []Comment{} }

    return comments
}

fn (c Comment) relative() string {
    return time.unix(c.created_at).relative()
}