// 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 regex::Regex;

use crate::common::TestEnvironment;

#[test]
fn test_show() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");

    let output = work_dir.run_jj(["show"]);
    let output = output.normalize_stdout_with(|s| s.split_inclusive('\n').skip(2).collect());

    insta::assert_snapshot!(output, @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)

    [EOF]
    ");
}

#[test]
fn test_show_basic() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");

    work_dir.write_file("file1", "foo\n");
    work_dir.write_file("file2", "foo\nbaz qux\n");
    work_dir.run_jj(["new"]).success();
    work_dir.remove_file("file1");
    work_dir.write_file("file2", "foo\nbar\nbaz quux\n");
    work_dir.write_file("file3", "foo\n");

    let output = work_dir.run_jj(["show"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    Modified regular file file2:
       1    1: foo
            2: bar
       2    3: baz quxquux
    Modified regular file file3 (file1 => file3):
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--context=0"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    Modified regular file file2:
       1    1: foo
            2: bar
       2    3: baz quxquux
    Modified regular file file3 (file1 => file3):
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--color=debug"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: <<commit_id::92e687faa4e5b681937f5a9c47feaa33e6b4892c>>
    Change ID: <<change_id::rlvkpnrzqnoowoytxnquwvuryrwnrmlp>>
    Author   : <<author name::Test User>> <<<author email local::test.user>><<author email::@>><<author email domain::example.com>>> (<<author timestamp local format::2001-02-03 08:05:09>>)
    Committer: <<committer name::Test User>> <<<committer email local::test.user>><<committer email::@>><<committer email domain::example.com>>> (<<committer timestamp local format::2001-02-03 08:05:09>>)

    <<description placeholder::    (no description set)>>

    <<diff header::Modified regular file file2:>>
    <<diff removed line_number::   1>><<diff:: >><<diff added line_number::   1>><<diff::: foo>>
    <<diff::     >><<diff added line_number::   2>><<diff::: >><<diff added token::bar>>
    <<diff removed line_number::   2>><<diff:: >><<diff added line_number::   3>><<diff::: baz >><<diff removed token::qux>><<diff added token::quux>><<diff::>>
    <<diff header::Modified regular file file3 (file1 => file3):>>
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "-s"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    M file2
    R {file1 => file3}
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--types"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    FF file2
    FF {file1 => file3}
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--git"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    diff --git a/file2 b/file2
    index 523a4a9de8..485b56a572 100644
    --- a/file2
    +++ b/file2
    @@ -1,2 +1,3 @@
     foo
    -baz qux
    +bar
    +baz quux
    diff --git a/file1 b/file3
    rename from file1
    rename to file3
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--git", "--context=0"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    diff --git a/file2 b/file2
    index 523a4a9de8..485b56a572 100644
    --- a/file2
    +++ b/file2
    @@ -2,1 +2,2 @@
    -baz qux
    +bar
    +baz quux
    diff --git a/file1 b/file3
    rename from file1
    rename to file3
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--git", "--color=debug"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: <<commit_id::92e687faa4e5b681937f5a9c47feaa33e6b4892c>>
    Change ID: <<change_id::rlvkpnrzqnoowoytxnquwvuryrwnrmlp>>
    Author   : <<author name::Test User>> <<<author email local::test.user>><<author email::@>><<author email domain::example.com>>> (<<author timestamp local format::2001-02-03 08:05:09>>)
    Committer: <<committer name::Test User>> <<<committer email local::test.user>><<committer email::@>><<committer email domain::example.com>>> (<<committer timestamp local format::2001-02-03 08:05:09>>)

    <<description placeholder::    (no description set)>>

    <<diff file_header::diff --git a/file2 b/file2>>
    <<diff file_header::index 523a4a9de8..485b56a572 100644>>
    <<diff file_header::--- a/file2>>
    <<diff file_header::+++ b/file2>>
    <<diff hunk_header::@@ -1,2 +1,3 @@>>
    <<diff context:: foo>>
    <<diff removed::-baz >><<diff removed token::qux>><<diff removed::>>
    <<diff added::+>><<diff added token::bar>>
    <<diff added::+baz >><<diff added token::quux>><<diff added::>>
    <<diff file_header::diff --git a/file1 b/file3>>
    <<diff file_header::rename from file1>>
    <<diff file_header::rename to file3>>
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "-s", "--git"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    M file2
    R {file1 => file3}
    diff --git a/file2 b/file2
    index 523a4a9de8..485b56a572 100644
    --- a/file2
    +++ b/file2
    @@ -1,2 +1,3 @@
     foo
    -baz qux
    +bar
    +baz quux
    diff --git a/file1 b/file3
    rename from file1
    rename to file3
    [EOF]
    ");

    let output = work_dir.run_jj(["show", "--stat"]);
    insta::assert_snapshot!(output, @r"
    Commit ID: 92e687faa4e5b681937f5a9c47feaa33e6b4892c
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        (no description set)

    file2            | 3 ++-
    {file1 => file3} | 0
    2 files changed, 2 insertions(+), 1 deletion(-)
    [EOF]
    ");
}

#[test]
fn test_show_with_template() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");
    work_dir.run_jj(["new", "-m", "a new commit"]).success();

    let output = work_dir.run_jj(["show", "-T", "description"]);

    insta::assert_snapshot!(output, @r"
    a new commit
    [EOF]
    ");
}

#[test]
fn test_show_with_template_no_patch() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");
    work_dir.run_jj(["new", "-m", "a new commit"]).success();
    work_dir.write_file("file1", "foo\n");

    let output = work_dir.run_jj(["show", "--no-patch", "-T", "description"]);

    insta::assert_snapshot!(output, @r"
    a new commit
    [EOF]
    ");
}

#[test]
fn test_show_with_no_patch() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");
    work_dir.run_jj(["new", "-m", "a new commit"]).success();
    work_dir.write_file("file1", "foo\n");

    let output = work_dir.run_jj(["show", "--no-patch"]);

    insta::assert_snapshot!(output, @r"
    Commit ID: 86d5fa72f4ecc6d51478941ee9160db9c52b842e
    Change ID: rlvkpnrzqnoowoytxnquwvuryrwnrmlp
    Author   : Test User <test.user@example.com> (2001-02-03 08:05:08)
    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)

        a new commit

    [EOF]
    ");
}

#[test]
fn test_show_with_no_template() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");

    let output = work_dir.run_jj(["show", "-T"]);
    insta::assert_snapshot!(output, @r"
    ------- stderr -------
    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_config_list
    - builtin_config_list_detailed
    - builtin_draft_commit_description
    - builtin_log_comfortable
    - builtin_log_compact
    - builtin_log_compact_full_description
    - 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
    - builtin_op_log_oneline
    - commit_summary_separator
    - default_commit_description
    - description_placeholder
    - email_placeholder
    - git_format_patch_email_headers
    - name_placeholder
    [EOF]
    [exit status: 2]
    ");
}

#[test]
fn test_show_relative_timestamps() {
    let test_env = TestEnvironment::default();
    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
    let work_dir = test_env.work_dir("repo");

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

    let output = work_dir.run_jj(["show"]);
    let timestamp_re = Regex::new(r"\([0-9]+ years ago\)").unwrap();
    let output = output.normalize_stdout_with(|s| {
        s.split_inclusive('\n')
            .skip(2)
            .map(|x| timestamp_re.replace_all(x, "(...timestamp...)"))
            .collect()
    });

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

        (no description set)

    [EOF]
    ");
}