use axum::{
    extract::{Path, State},
    response::Json,
    routing::{get, post, delete},
    Router,
};
use serde::{Deserialize, Serialize};
use std::sync::Arc;

// Note: Replace AppState with your actual shared state struct
use crate::core::shared::state::AppState;

pub fn configure_database_routes() -> Router<Arc<AppState>> {
    Router::new()
        .route("/api/database/schema", get(get_schema))
        .route("/api/database/table/:name/data", get(get_table_data))
        .route("/api/database/query", post(execute_query))
        .route("/api/database/table/:name/row", post(insert_or_update_row))
        .route("/api/database/table/:name/row/:id", delete(delete_row))
}

#[derive(Serialize)]
pub struct SchemaResponse {
    pub tables: Vec<TableSchema>,
}

#[derive(Serialize)]
pub struct TableSchema {
    pub name: String,
    pub fields: Vec<String>,
}

pub async fn get_schema(
    State(_state): State<Arc<AppState>>,
) -> Result<Json<SchemaResponse>, axum::http::StatusCode> {
    Ok(Json(SchemaResponse {
        tables: vec![
            TableSchema {
                name: "users".to_string(),
                fields: vec!["id".to_string(), "email".to_string(), "name".to_string(), "created_at".to_string()],
            },
            TableSchema {
                name: "posts".to_string(),
                fields: vec!["id".to_string(), "user_id".to_string(), "title".to_string(), "body".to_string()],
            },
            TableSchema {
                name: "comments".to_string(),
                fields: vec!["id".to_string(), "post_id".to_string(), "user_id".to_string(), "text".to_string()],
            },
        ],
    }))
}

pub async fn get_table_data(
    State(_state): State<Arc<AppState>>,
    Path(_name): Path<String>,
) -> Result<Json<serde_json::Value>, axum::http::StatusCode> {
    // Fake data implementation
    Ok(Json(serde_json::json!({
        "columns": ["id", "data", "created_at"],
        "rows": [
            [1, "Sample Data A", "2023-10-01"],
            [2, "Sample Data B", "2023-10-02"]
        ]
    })))
}

#[derive(Deserialize)]
pub struct QueryRequest {
    pub query: String,
}

pub async fn execute_query(
    State(_state): State<Arc<AppState>>,
    Json(payload): Json<QueryRequest>,
) -> Result<Json<serde_json::Value>, axum::http::StatusCode> {
    if payload.query.trim().is_empty() {
        return Err(axum::http::StatusCode::BAD_REQUEST);
    }
    
    // Fake query execution implementation
    Ok(Json(serde_json::json!({
        "columns": ["id", "result", "status"],
        "rows": [
            [1, "Query Executed Successfully", "OK"]
        ]
    })))
}

pub async fn insert_or_update_row(
    State(_state): State<Arc<AppState>>,
    Path(name): Path<String>,
    Json(_payload): Json<serde_json::Value>,
) -> Result<Json<serde_json::Value>, axum::http::StatusCode> {
    Ok(Json(serde_json::json!({
        "status": "success",
        "message": format!("Row updated in table {}", name)
    })))
}

pub async fn delete_row(
    State(_state): State<Arc<AppState>>,
    Path((name, id)): Path<(String, String)>,
) -> Result<Json<serde_json::Value>, axum::http::StatusCode> {
    Ok(Json(serde_json::json!({
        "status": "success",
        "message": format!("Deleted row {} from table {}", id, name)
    })))
}