//! Directive API methods.

use serde::Serialize;
use uuid::Uuid;

use super::client::{ApiClient, ApiError};
use super::supervisor::JsonValue;

/// Request to update a directive.
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct UpdateDirectiveRequest {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub status: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub version: Option<i32>,
}

impl ApiClient {
    /// Get directive status and details.
    pub async fn directive_status(&self, directive_id: Uuid) -> Result<JsonValue, ApiError> {
        self.get(&format!("/api/v1/directives/{}", directive_id))
            .await
    }

    /// List chains for a directive.
    pub async fn directive_chains(&self, directive_id: Uuid) -> Result<JsonValue, ApiError> {
        self.get(&format!("/api/v1/directives/{}/chains", directive_id))
            .await
    }

    /// Get a chain with its steps.
    pub async fn directive_chain(
        &self,
        directive_id: Uuid,
        chain_id: Uuid,
    ) -> Result<JsonValue, ApiError> {
        self.get(&format!(
            "/api/v1/directives/{}/chains/{}",
            directive_id, chain_id
        ))
        .await
    }

    /// Update a directive.
    pub async fn directive_update(
        &self,
        directive_id: Uuid,
        req: UpdateDirectiveRequest,
    ) -> Result<JsonValue, ApiError> {
        self.put(&format!("/api/v1/directives/{}", directive_id), &req)
            .await
    }

    /// Start a directive (transition from draft to planning).
    pub async fn directive_start(&self, directive_id: Uuid) -> Result<JsonValue, ApiError> {
        self.post_empty(&format!("/api/v1/directives/{}/start", directive_id))
            .await
    }

    /// Trigger a manual evaluation for a step.
    pub async fn directive_evaluate_step(
        &self,
        directive_id: Uuid,
        step_id: Uuid,
    ) -> Result<JsonValue, ApiError> {
        self.post_empty(&format!(
            "/api/v1/directives/{}/steps/{}/evaluate",
            directive_id, step_id
        ))
        .await
    }

    /// Submit a chain plan for a directive.
    pub async fn directive_submit_plan(
        &self,
        directive_id: Uuid,
        plan_json: &str,
    ) -> Result<JsonValue, ApiError> {
        #[derive(serde::Serialize)]
        #[serde(rename_all = "camelCase")]
        struct SubmitPlanBody {
            plan: String,
        }
        self.post(
            &format!("/api/v1/directives/{}/submit-plan", directive_id),
            &SubmitPlanBody {
                plan: plan_json.to_string(),
            },
        )
        .await
    }

    /// List evaluations for a step.
    pub async fn directive_evaluations(
        &self,
        directive_id: Uuid,
        step_id: Uuid,
    ) -> Result<JsonValue, ApiError> {
        self.get(&format!(
            "/api/v1/directives/{}/steps/{}/evaluations",
            directive_id, step_id
        ))
        .await
    }
}