fn render_debug_config_lines()

in codex-rs/tui/src/debug_config.rs [60:267]

• 189 lines of code
• 20 McCabe index (conditional complexity)

fn render_debug_config_lines(stack: &ConfigLayerStack) -> Vec<Line<'static>> {
    let mut lines = vec!["/debug-config".magenta().into(), "".into()];

    lines.push(
        "Config layer stack (lowest precedence first):"
            .bold()
            .into(),
    );
    let layers = stack.get_layers(
        ConfigLayerStackOrdering::LowestPrecedenceFirst,
        /*include_disabled*/ true,
    );
    if layers.is_empty() {
        lines.push("  <none>".dim().into());
    } else {
        for (index, layer) in layers.iter().enumerate() {
            let source = format_config_layer_source(&layer.name, CONFIG_TOML_FILE);
            let status = if layer.is_disabled() {
                "disabled"
            } else {
                "enabled"
            };
            lines.push(format!("  {}. {source} ({status})", index + 1).into());
            lines.extend(render_non_file_layer_details(layer));
            if let Some(reason) = &layer.disabled_reason {
                lines.push(format!("     reason: {reason}").dim().into());
            }
        }
    }

    let requirements = stack.requirements();
    let requirements_toml = stack.requirements_toml();

    lines.push("".into());
    lines.push("Requirements:".bold().into());
    let mut requirement_lines = Vec::new();

    if let Some(policies) = requirements_toml.allowed_approval_policies.as_ref() {
        let value = join_or_empty(policies.iter().map(ToString::to_string).collect::<Vec<_>>());
        requirement_lines.push(requirement_line(
            "allowed_approval_policies",
            value,
            requirements.approval_policy.source.as_ref(),
        ));
    }

    if let Some(reviewers) = requirements_toml.allowed_approvals_reviewers.as_ref() {
        let value = join_or_empty(
            reviewers
                .iter()
                .map(ToString::to_string)
                .collect::<Vec<_>>(),
        );
        requirement_lines.push(requirement_line(
            "allowed_approvals_reviewers",
            value,
            requirements.approvals_reviewer.source.as_ref(),
        ));
    }

    if let Some(modes) = requirements_toml.allowed_sandbox_modes.as_ref() {
        let value = join_or_empty(
            modes
                .iter()
                .copied()
                .map(format_sandbox_mode_requirement)
                .collect::<Vec<_>>(),
        );
        requirement_lines.push(requirement_line(
            "allowed_sandbox_modes",
            value,
            requirements.permission_profile.source.as_ref(),
        ));
    }

    if let Some(modes) = requirements_toml.allowed_web_search_modes.as_ref() {
        let normalized = normalize_allowed_web_search_modes(modes);
        let value = join_or_empty(
            normalized
                .iter()
                .map(ToString::to_string)
                .collect::<Vec<_>>(),
        );
        requirement_lines.push(requirement_line(
            "allowed_web_search_modes",
            value,
            requirements.web_search_mode.source.as_ref(),
        ));
    }

    if let Some(allow_managed_hooks_only) = requirements_toml.allow_managed_hooks_only {
        requirement_lines.push(requirement_line(
            "allow_managed_hooks_only",
            allow_managed_hooks_only.to_string(),
            requirements
                .allow_managed_hooks_only
                .as_ref()
                .map(|sourced| &sourced.source),
        ));
    }

    if let Some(allow_appshots) = requirements_toml.allow_appshots {
        requirement_lines.push(requirement_line(
            "allow_appshots",
            allow_appshots.to_string(),
            requirements
                .allow_appshots
                .as_ref()
                .map(|sourced| &sourced.source),
        ));
    }

    if requirements_toml.guardian_policy_config.is_some() {
        requirement_lines.push(requirement_line(
            "guardian_policy_config",
            "configured".to_string(),
            requirements.guardian_policy_config_source.as_ref(),
        ));
    }

    if let Some(feature_requirements) = requirements.feature_requirements.as_ref() {
        let value = join_or_empty(
            feature_requirements
                .value
                .entries
                .iter()
                .map(|(feature, enabled)| format!("{feature}={enabled}"))
                .collect::<Vec<_>>(),
        );
        requirement_lines.push(requirement_line(
            "features",
            value,
            Some(&feature_requirements.source),
        ));
    }

    if let Some(hooks) = requirements_toml.hooks.as_ref() {
        requirement_lines.push(requirement_line(
            "hooks",
            format_managed_hooks_requirements(hooks),
            requirements
                .managed_hooks
                .as_ref()
                .and_then(|managed_hooks| managed_hooks.source.as_ref()),
        ));
    }

    if let Some(servers) = requirements_toml.mcp_servers.as_ref() {
        let value = join_or_empty(servers.keys().cloned().collect::<Vec<_>>());
        requirement_lines.push(requirement_line(
            "mcp_servers",
            value,
            requirements
                .mcp_servers
                .as_ref()
                .map(|sourced| &sourced.source),
        ));
    }

    // TODO(gt): Expand this debug output with detailed skills and rules display.
    if requirements_toml.rules.is_some() {
        requirement_lines.push(requirement_line(
            "rules",
            "configured".to_string(),
            requirements.exec_policy_source(),
        ));
    }

    if let Some(residency) = requirements_toml.enforce_residency {
        requirement_lines.push(requirement_line(
            "enforce_residency",
            format_residency_requirement(residency),
            requirements.enforce_residency.source.as_ref(),
        ));
    }

    if let Some(network) = requirements.network.as_ref() {
        requirement_lines.push(requirement_line(
            "experimental_network",
            format_network_constraints(&network.value),
            Some(&network.source),
        ));
    }

    if let Some(filesystem) = requirements.filesystem.as_ref() {
        let deny_read = join_or_empty(
            filesystem
                .value
                .deny_read
                .iter()
                .map(|pattern| pattern.as_str().to_string())
                .collect::<Vec<_>>(),
        );
        requirement_lines.push(requirement_line(
            "permissions.filesystem.deny_read",
            deny_read,
            Some(&filesystem.source),
        ));
    }

    if requirement_lines.is_empty() {
        lines.push("  <none>".dim().into());
    } else {
        lines.extend(requirement_lines);
    }

    lines
}