// Copyright 2022 The Jujutsu Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use itertools::Itertools;
use regex::Regex;

use crate::common::TestEnvironment;

#[test]
fn test_show() {
    let test_env = TestEnvironment::default();
    test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
    let repo_path = test_env.env_root().join("repo");

    let stdout = test_env.jj_cmd_success(&repo_path, &["show"]);
    let stdout = stdout.lines().skip(2).join("\n");

    insta::assert_snapshot!(stdout, @r###"
    Author: Test User <test.user@example.com> (2001-02-03 08:05:07)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:07)

        (no description set)
    "###);
}

#[test]
fn test_show_with_template() {
    let test_env = TestEnvironment::default();
    test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
    let repo_path = test_env.env_root().join("repo");
    test_env.jj_cmd_ok(&repo_path, &["new", "-m", "a new commit"]);

    let stdout = test_env.jj_cmd_success(&repo_path, &["show", "-T", "description"]);

    insta::assert_snapshot!(stdout, @r###"
    a new commit
    "###);
}

#[test]
fn test_show_with_no_template() {
    let test_env = TestEnvironment::default();
    test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
    let repo_path = test_env.env_root().join("repo");

    let stderr = test_env.jj_cmd_cli_error(&repo_path, &["show", "-T"]);
    insta::assert_snapshot!(stderr, @r###"
    error: a value is required for '--template <TEMPLATE>' but none was supplied

    For more information, try '--help'.
    Hint: The following template aliases are defined:
    - builtin_change_id_with_hidden_and_divergent_info
    - builtin_log_comfortable
    - builtin_log_compact
    - builtin_log_detailed
    - builtin_log_node
    - builtin_log_node_ascii
    - builtin_log_oneline
    - builtin_op_log_comfortable
    - builtin_op_log_compact
    - builtin_op_log_node
    - builtin_op_log_node_ascii
    - commit_summary_separator
    - description_placeholder
    - email_placeholder
    - name_placeholder
    "###);
}

#[test]
fn test_show_relative_timestamps() {
    let test_env = TestEnvironment::default();
    test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
    let repo_path = test_env.env_root().join("repo");

    test_env.add_config(
        r#"
        [template-aliases]
        'format_timestamp(timestamp)' = 'timestamp.ago()'
        "#,
    );

    let stdout = test_env.jj_cmd_success(&repo_path, &["show"]);
    let timestamp_re = Regex::new(r"\([0-9]+ years ago\)").unwrap();
    let stdout = stdout
        .lines()
        .skip(2)
        .map(|x| timestamp_re.replace_all(x, "(...timestamp...)"))
        .join("\n");

    insta::assert_snapshot!(stdout, @r###"
    Author: Test User <test.user@example.com> (...timestamp...)
    Committer: Test User <test.user@example.com> (...timestamp...)

        (no description set)
    "###);
}