kopi 0.2.3

Kopi is a JDK version management tool
Documentation 
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// Copyright 2025 dentsusoken
//
// 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
//
//     http://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 crate::error::Result;
use crate::indicator::StatusReporter;
use crate::storage::InstalledJdk;
use crate::storage::formatting::format_size;
use std::io::{self, Write};

/// Display confirmation prompt for uninstalling a JDK
pub fn display_uninstall_confirmation(jdk: &InstalledJdk, disk_space: u64) -> Result<bool> {
    println!("The following JDK will be uninstalled:");
    println!("  Distribution: {}", jdk.distribution);
    println!("  Version: {}", jdk.version);
    println!("  Path: {}", jdk.path.display());
    println!(
        "  Disk space to be freed: {:.2} MB",
        disk_space as f64 / 1_048_576.0
    );
    println!();

    print!("Do you want to continue? [y/N] ");
    io::stdout().flush()?;

    let mut input = String::new();
    io::stdin().read_line(&mut input)?;

    Ok(input.trim().eq_ignore_ascii_case("y"))
}

/// Display confirmation prompt for batch uninstall
pub fn display_batch_uninstall_confirmation(
    jdks: &[InstalledJdk],
    total_disk_space: u64,
) -> Result<bool> {
    println!("The following {} JDK(s) will be uninstalled:", jdks.len());
    println!();

    for jdk in jdks {
        println!("  - {}@{}", jdk.distribution, jdk.version);
    }

    println!();
    println!(
        "Total disk space to be freed: {:.2} MB",
        total_disk_space as f64 / 1_048_576.0
    );
    println!();

    print!("Do you want to continue? [y/N] ");
    io::stdout().flush()?;

    let mut input = String::new();
    io::stdin().read_line(&mut input)?;

    Ok(input.trim().eq_ignore_ascii_case("y"))
}

/// Display summary after successful uninstall
pub fn display_uninstall_summary(jdks: &[InstalledJdk], total_disk_space: u64) {
    if jdks.len() == 1 {
        println!(
            "Successfully uninstalled: {}@{}",
            jdks[0].distribution, jdks[0].version
        );
    } else {
        println!("Successfully uninstalled {} JDKs:", jdks.len());
        for jdk in jdks {
            println!("  - {}@{}", jdk.distribution, jdk.version);
        }
    }
    println!(
        "Disk space freed: {:.2} MB",
        total_disk_space as f64 / 1_048_576.0
    );
}

/// Display batch uninstall progress summary
pub fn display_batch_uninstall_summary(
    succeeded: &[InstalledJdk],
    failed: &[(InstalledJdk, String)],
    total_disk_space: u64,
) {
    let reporter = StatusReporter::new(false);

    reporter.operation("Batch uninstall summary", "");
    reporter.step(&format!("Succeeded: {}", succeeded.len()));
    reporter.step(&format!("Failed: {}", failed.len()));

    if !failed.is_empty() {
        reporter.error("Failed uninstalls:");
        for (jdk, error) in failed {
            reporter.step(&format!(
                "- {}@{}: {}",
                jdk.distribution, jdk.version, error
            ));
        }
    }

    if !succeeded.is_empty() {
        reporter.success(&format!(
            "Disk space freed: {}",
            format_size(total_disk_space)
        ));
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::test::fixtures::create_test_jdk;

    #[test]
    fn test_display_uninstall_summary_single() {
        let jdks = vec![create_test_jdk("temurin", "21.0.5+11")];
        let disk_space = 512 * 1024 * 1024; // 512 MB

        // This test just ensures the function doesn't panic
        display_uninstall_summary(&jdks, disk_space);
    }

    #[test]
    fn test_display_uninstall_summary_multiple() {
        let jdks = vec![
            create_test_jdk("temurin", "21.0.5+11"),
            create_test_jdk("corretto", "17.0.13.11.1"),
        ];
        let disk_space = 1024 * 1024 * 1024; // 1 GB

        // This test just ensures the function doesn't panic
        display_uninstall_summary(&jdks, disk_space);
    }

    #[test]
    fn test_display_batch_uninstall_summary() {
        let succeeded = vec![
            create_test_jdk("temurin", "21.0.5+11"),
            create_test_jdk("corretto", "17.0.13.11.1"),
        ];
        let failed = vec![(
            create_test_jdk("zulu", "11.0.25"),
            "Permission denied".to_string(),
        )];
        let disk_space = 1024 * 1024 * 1024; // 1 GB

        // This test just ensures the function doesn't panic
        display_batch_uninstall_summary(&succeeded, &failed, disk_space);
    }
}