cargo-q 0.1.2

A cargo subcommand for running multiple cargo commands in a time
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use crate::executor::Executor;
use crate::routine::Routine;

#[allow(dead_code)]
#[derive(Debug, PartialEq, Clone, Copy)]
pub enum Strategy {
    /// Commands are independent (space or ; separator)
    Independent,
    /// Commands are dependent on previous success (& separator)
    Dependent,
    /// Commands pipe output to next command (> separator)
    Pipe,
}

pub struct Parser;

impl Parser {
    pub fn new() -> Self {
        Parser
    }

    pub fn parse(&self, input: &str, parallel: bool, verbose: bool) -> Executor {
        let routines = if input.contains(';') {
            self.parse_semicolon_separated(input)
        } else {
            self.parse_space_separated(input)
        };

        Executor::new(parallel, verbose, routines, Strategy::Independent)
    }

    fn parse_space_separated(&self, input: &str) -> Vec<Routine> {
        input
            .split_whitespace()
            .map(|cmd| {
                let parts: Vec<&str> = cmd.split_whitespace().collect();
                Routine {
                    name: parts[0].to_string(),
                    args: parts[1..].iter().map(|s| s.to_string()).collect(),
                }
            })
            .collect()
    }

    fn parse_semicolon_separated(&self, input: &str) -> Vec<Routine> {
        input
            .split(';')
            .map(str::trim)
            .filter(|s| !s.is_empty())
            .map(|cmd| {
                let parts: Vec<&str> = cmd.split_whitespace().collect();
                if parts.is_empty() {
                    return Routine {
                        name: String::new(),
                        args: Vec::new(),
                    };
                }
                Routine {
                    name: parts[0].to_string(),
                    args: parts[1..].iter().map(|s| s.to_string()).collect(),
                }
            })
            .filter(|routine| !routine.name.is_empty())
            .collect()
    }
}

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

    #[test]
    fn test_parse_space_separated() {
        let parser = Parser::new();
        let input = "check test";
        let executor = parser.parse(input, false, false);

        assert_eq!(executor.strategy, Strategy::Independent);
        assert_eq!(executor.routines.len(), 2);

        assert_eq!(executor.routines[0].name, "check");
        assert!(executor.routines[0].args.is_empty());

        assert_eq!(executor.routines[1].name, "test");
        assert!(executor.routines[1].args.is_empty());
    }

    #[test]
    fn test_parse_semicolon_separated() {
        let parser = Parser::new();
        let input = "test --features feature1 ; run";
        let executor = parser.parse(input, false, false);

        assert_eq!(executor.strategy, Strategy::Independent);
        assert_eq!(executor.routines.len(), 2);

        assert_eq!(executor.routines[0].name, "test");
        assert_eq!(executor.routines[0].args, vec!["--features", "feature1"]);

        assert_eq!(executor.routines[1].name, "run");
        assert!(executor.routines[1].args.is_empty());
    }

    #[test]
    fn test_parse_semicolon_with_empty() {
        let parser = Parser::new();
        let input = "check ; ; test";
        let executor = parser.parse(input, false, false);

        assert_eq!(executor.strategy, Strategy::Independent);
        assert_eq!(executor.routines.len(), 2);

        assert_eq!(executor.routines[0].name, "check");
        assert!(executor.routines[0].args.is_empty());

        assert_eq!(executor.routines[1].name, "test");
        assert!(executor.routines[1].args.is_empty());
    }

    #[test]
    fn test_parse_semicolon_with_spaces() {
        let parser = Parser::new();
        let input = "  check  ;  test  ;  run  ";
        let executor = parser.parse(input, false, false);

        assert_eq!(executor.strategy, Strategy::Independent);
        assert_eq!(executor.routines.len(), 3);

        assert_eq!(executor.routines[0].name, "check");
        assert!(executor.routines[0].args.is_empty());

        assert_eq!(executor.routines[1].name, "test");
        assert!(executor.routines[1].args.is_empty());

        assert_eq!(executor.routines[2].name, "run");
        assert!(executor.routines[2].args.is_empty());
    }
}