govctl 0.8.3

Project governance CLI for RFC, ADR, and Work Item management
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//! govctl: Project governance CLI for RFC, ADR, and Work Item management.

use clap::Parser;
use std::process::ExitCode;

mod cli;
mod cmd;
mod command_router;
mod config;
mod diagnostic;
mod load;
mod lock;
mod model;
mod parse;
mod render;
mod resource_plan;
mod scan;
mod schema;
mod signature;
mod terminal_md;
mod theme;
mod ui;
mod validate;
mod verification;
mod write;

#[cfg(feature = "tui")]
mod tui;

// Re-export CLI types so modules can use `crate::TickStatus`, etc.
pub(crate) use cli::*;

use config::Config;
use diagnostic::{Diagnostic, DiagnosticCode, DiagnosticLevel};

fn main() -> ExitCode {
    let cli = Cli::parse();
    let result = run(&cli);

    match result {
        Ok(diags) => {
            let has_errors = diags.iter().any(|d| d.level == DiagnosticLevel::Error);
            let has_warnings = diags.iter().any(|d| d.level == DiagnosticLevel::Warning);

            for diag in &diags {
                ui::diagnostic(diag);
            }

            if has_errors {
                ExitCode::FAILURE
            } else if has_warnings {
                if matches!(
                    cli.command,
                    Commands::Check {
                        deny_warnings: true,
                        ..
                    } | Commands::Check {
                        has_active: true,
                        ..
                    }
                ) {
                    ExitCode::FAILURE
                } else {
                    ExitCode::SUCCESS
                }
            } else {
                ExitCode::SUCCESS
            }
        }
        Err(e) => {
            // Try to extract Diagnostic for structured error output
            if let Some(diag) = e.downcast_ref::<Diagnostic>() {
                ui::diagnostic(diag);
            } else {
                ui::error(&e);
            }
            ExitCode::FAILURE
        }
    }
}

fn run(cli: &Cli) -> anyhow::Result<Vec<Diagnostic>> {
    let config = Config::load(cli.config.as_deref())?;
    let op = write::WriteOp::from_dry_run(cli.dry_run);

    // Convert parsed CLI command to canonical form
    let plan = command_router::CommandPlan::from_parsed(&cli.command, cli.dry_run)?;

    let lock_disposition = plan.lock_disposition();

    // Acquire gov-root exclusive lock for mutating operations (RFC-0004)
    let _guard = if matches!(
        lock_disposition,
        command_router::LockDisposition::GovRootExclusive
    ) {
        if matches!(
            plan.op,
            command_router::Op::Builtin(command_router::BuiltinOp::Init { .. })
        ) {
            let gov_root = config.gov_root.as_path();
            if !op.is_preview() && !gov_root.exists() {
                std::fs::create_dir_all(gov_root).map_err(|e| {
                    Diagnostic::new(
                        DiagnosticCode::E0901IoError,
                        format!("Failed to create gov root: {}", e),
                        gov_root.display().to_string(),
                    )
                })?;
            }
        }
        if op.is_preview()
            && matches!(
                plan.op,
                command_router::Op::Builtin(command_router::BuiltinOp::Init { .. })
            )
        {
            None
        } else {
            Some(lock::acquire_gov_lock(&config)?)
        }
    } else {
        None
    };

    // Execute via canonical command pattern (single execution path)
    plan.execute(&config, op)
}