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use serde::{Deserialize, Serialize};
use std::cmp;
use std::collections::HashMap;

use super::super::{run::*, CommandConfig, CommandConfigFromScriptOptions, KillBehavior};
use super::CommandConfigsInput;

#[non_exhaustive]
#[derive(Deserialize, Serialize)]
pub struct RunConfigInput {
    pub commands: CommandConfigsInput,
    pub max_label_length: Option<usize>,
    pub envs: Option<HashMap<String, String>>,
    #[serde(default)]
    pub windows_call_cmd_with_env: super::WindowsCallCmdWithEnv,
    #[serde(default)]
    pub kill: KillBehavior,
}

impl Into<RunConfig> for RunConfigInput {
    fn into(self) -> RunConfig {
        let Self {
            commands,
            max_label_length,
            envs,
            windows_call_cmd_with_env,
            kill,
        } = self;

        let commands: Vec<CommandConfig> = commands.into_configs(&CommandConfigFromScriptOptions {
            windows_call_cmd_with_env,
        });

        let real_max_label_length = commands
            .iter()
            .map(|cmd| cmd.label_length())
            .max()
            .unwrap_or(0);

        let max_label_length = match max_label_length {
            Some(0) | None => real_max_label_length,
            Some(v) => cmp::min(v, real_max_label_length),
        };

        RunConfig {
            commands,
            max_label_length,
            envs,
            kill,
        }
    }
}