use super::client::KubeClient;
use super::types::{ContainerStatus, PodCondition, PodDetails, PodLogs};
use k8s_openapi::api::core::v1::Pod;
use kube::{api::LogParams, Api};

impl KubeClient {
    /// Gets detailed information about a specific pod for diagnostics
    pub async fn get_pod_details(
        &self,
        namespace: &str,
        pod_name: &str,
    ) -> Result<PodDetails, Box<dyn std::error::Error>> {
        let pods: Api<Pod> = Api::namespaced(self.inner().clone(), namespace);
        let pod = pods.get(pod_name).await?;

        // Extract phase
        let phase = pod
            .status
            .as_ref()
            .and_then(|s| s.phase.clone())
            .unwrap_or_else(|| "Unknown".to_string());

        // Extract node name
        let node_name = pod.spec.as_ref().and_then(|s| s.node_name.clone());

        // Extract conditions
        let conditions = pod
            .status
            .as_ref()
            .and_then(|s| s.conditions.as_ref())
            .map(|conds| {
                conds
                    .iter()
                    .map(|c| PodCondition {
                        type_: c.type_.clone(),
                        status: c.status.clone(),
                        reason: c.reason.clone(),
                        message: c.message.clone(),
                    })
                    .collect()
            })
            .unwrap_or_default();

        // Extract container statuses
        let container_statuses: Vec<ContainerStatus> = pod
            .status
            .as_ref()
            .and_then(|s| s.container_statuses.as_ref())
            .map(|cs| {
                cs.iter()
                    .map(|c| {
                        let (state, state_reason, state_message) = if let Some(waiting) =
                            &c.state.as_ref().and_then(|s| s.waiting.as_ref())
                        {
                            (
                                "Waiting".to_string(),
                                waiting.reason.clone(),
                                waiting.message.clone(),
                            )
                        } else if let Some(_running) =
                            &c.state.as_ref().and_then(|s| s.running.as_ref())
                        {
                            ("Running".to_string(), None, None)
                        } else if let Some(terminated) =
                            &c.state.as_ref().and_then(|s| s.terminated.as_ref())
                        {
                            (
                                "Terminated".to_string(),
                                terminated.reason.clone(),
                                terminated.message.clone(),
                            )
                        } else {
                            ("Unknown".to_string(), None, None)
                        };

                        ContainerStatus {
                            name: c.name.clone(),
                            ready: c.ready,
                            restart_count: c.restart_count,
                            state,
                            state_reason,
                            state_message,
                        }
                    })
                    .collect()
            })
            .unwrap_or_default();

        // Calculate total restart count
        let restart_count: i32 = container_statuses.iter().map(|c| c.restart_count).sum();

        // Extract start time
        let start_time = pod
            .status
            .as_ref()
            .and_then(|s| s.start_time.as_ref())
            .map(|t| t.0.to_rfc3339());

        Ok(PodDetails {
            name: pod_name.to_string(),
            namespace: namespace.to_string(),
            phase,
            node_name,
            conditions,
            container_statuses,
            restart_count,
            start_time,
        })
    }

    /// Gets recent logs from a pod's container
    pub async fn get_pod_logs(
        &self,
        namespace: &str,
        pod_name: &str,
        container_name: Option<&str>,
        tail_lines: Option<i64>,
    ) -> Result<PodLogs, Box<dyn std::error::Error>> {
        let pods: Api<Pod> = Api::namespaced(self.inner().clone(), namespace);

        // Determine which container to get logs from
        let container = if let Some(name) = container_name {
            name.to_string()
        } else {
            // Get first container name
            let pod = pods.get(pod_name).await?;
            pod.spec
                .as_ref()
                .and_then(|s| s.containers.first())
                .map(|c| c.name.clone())
                .ok_or("No containers found in pod")?
        };

        let log_params = LogParams {
            container: Some(container.clone()),
            tail_lines,
            ..Default::default()
        };

        let logs = pods.logs(pod_name, &log_params).await?;

        Ok(PodLogs {
            pod_name: pod_name.to_string(),
            namespace: namespace.to_string(),
            container_name: container,
            logs,
        })
    }
}