use std::collections::BTreeMap;

use crate::error::Result;
use KeyAndValueRef::{Ascii, Binary};
use tauri::{Manager, Runtime, WebviewWindow};
use yaak_grpc::{KeyAndValueRef, MetadataMap};
use yaak_models::models::GrpcRequest;
use yaak_models::query_manager::QueryManagerExt;
use yaak_plugins::events::{CallHttpAuthenticationRequest, HttpHeader};
use yaak_plugins::manager::PluginManager;

pub(crate) fn metadata_to_map(metadata: MetadataMap) -> BTreeMap<String, String> {
    let mut entries = BTreeMap::new();
    for r in metadata.iter() {
        match r {
            Ascii(k, v) => entries.insert(k.to_string(), v.to_str().unwrap().to_string()),
            Binary(k, v) => entries.insert(k.to_string(), format!("{:?}", v)),
        };
    }
    entries
}

pub(crate) async fn build_metadata<R: Runtime>(
    window: &WebviewWindow<R>,
    request: &GrpcRequest,
) -> Result<BTreeMap<String, String>> {
    let plugin_manager = window.state::<PluginManager>();
    let mut metadata = BTreeMap::new();

    // Add the rest of metadata
    let resolved_metadata = window.db().resolve_metadata_for_grpc_request(&request)?;
    for h in resolved_metadata {
        if h.name.is_empty() && h.value.is_empty() {
            continue;
        }

        if !h.enabled {
            continue;
        }

        metadata.insert(h.name, h.value);
    }

    let (authentication_type, authentication) =
        window.db().resolve_auth_for_grpc_request(&request)?;

    if let Some(auth_name) = authentication_type.clone() {
        let auth = authentication.clone();
        let plugin_req = CallHttpAuthenticationRequest {
            context_id: format!("{:x}", md5::compute(request.id.clone())),
            values: serde_json::from_value(serde_json::to_value(&auth).unwrap()).unwrap(),
            method: "POST".to_string(),
            url: request.url.clone(),
            headers: metadata
                .iter()
                .map(|(name, value)| HttpHeader {
                    name: name.to_string(),
                    value: value.to_string(),
                })
                .collect(),
        };
        let plugin_result =
            plugin_manager.call_http_authentication(&window, &auth_name, plugin_req).await?;
        for header in plugin_result.set_headers {
            metadata.insert(header.name, header.value);
        }
    }

    Ok(metadata)
}