BazaarRealmClient/src/transaction.rs

352 lines
11 KiB
Rust
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use std::{convert::TryFrom, ffi::CStr, ffi::CString, os::raw::c_char, slice, str};
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use anyhow::{anyhow, Result};
use http_api_problem::HttpApiProblem;
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use reqwest::Url;
use serde::{Deserialize, Serialize};
#[cfg(not(test))]
use log::{error, info};
#[cfg(test)]
use std::{println as info, println as error};
use crate::{
cache::file_cache_dir, cache::from_file_cache, cache::update_file_cache,
cache::update_metadata_file_cache, log_server_error, result::FFIResult,
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};
#[derive(Serialize, Deserialize, Debug)]
pub struct Transaction {
pub id: Option<u32>,
pub shop_id: u32,
pub mod_name: String,
pub local_form_id: u32,
pub name: String,
pub form_type: u32,
pub is_food: bool,
pub price: u32,
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pub is_sell: bool,
pub quantity: u32,
pub amount: u32,
}
impl Transaction {
pub fn from_game(
shop_id: u32,
mod_name: &str,
local_form_id: u32,
name: &str,
form_type: u32,
is_food: bool,
price: u32,
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is_sell: bool,
quantity: u32,
amount: u32,
) -> Self {
Self {
id: None,
shop_id,
mod_name: mod_name.to_string(),
local_form_id,
name: name.to_string(),
form_type,
is_food,
price,
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is_sell,
quantity,
amount,
}
}
}
impl From<RawTransaction> for Transaction {
fn from(raw_transaction: RawTransaction) -> Self {
Self {
id: match raw_transaction.id {
0 => None,
_ => Some(raw_transaction.id),
},
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shop_id: raw_transaction.shop_id,
mod_name: unsafe { CStr::from_ptr(raw_transaction.mod_name) }
.to_string_lossy()
.to_string(),
local_form_id: raw_transaction.local_form_id,
name: unsafe { CStr::from_ptr(raw_transaction.name) }
.to_string_lossy()
.to_string(),
form_type: raw_transaction.form_type,
is_food: raw_transaction.is_food,
price: raw_transaction.price,
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is_sell: raw_transaction.is_sell,
quantity: raw_transaction.quantity,
amount: raw_transaction.amount,
}
}
}
#[derive(Debug)]
#[repr(C)]
pub struct RawTransaction {
pub id: u32,
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pub shop_id: u32,
pub mod_name: *const c_char,
pub local_form_id: u32,
pub name: *const c_char,
pub form_type: u32,
pub is_food: bool,
pub price: u32,
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pub is_sell: bool,
pub quantity: u32,
pub amount: u32,
}
impl From<Transaction> for RawTransaction {
fn from(transaction: Transaction) -> Self {
Self {
id: transaction.id.unwrap_or(0),
shop_id: transaction.shop_id,
mod_name: CString::new(transaction.mod_name)
.unwrap_or_default()
.into_raw(),
local_form_id: transaction.local_form_id,
name: CString::new(transaction.name)
.unwrap_or_default()
.into_raw(),
form_type: transaction.form_type,
is_food: transaction.is_food,
price: transaction.price,
is_sell: transaction.is_sell,
quantity: transaction.quantity,
amount: transaction.amount,
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}
}
}
#[derive(Debug)]
#[repr(C)]
pub struct RawTransactionVec {
pub ptr: *mut RawTransaction,
pub len: usize,
pub cap: usize,
}
#[no_mangle]
pub extern "C" fn create_transaction(
api_url: *const c_char,
api_key: *const c_char,
raw_transaction: RawTransaction,
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) -> FFIResult<RawTransaction> {
let api_url = unsafe { CStr::from_ptr(api_url) }.to_string_lossy();
let api_key = unsafe { CStr::from_ptr(api_key) }.to_string_lossy();
let transaction = Transaction::from(raw_transaction);
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info!(
"create_transaction api_url: {:?}, api_key: {:?}, transaction: {:?}",
api_url, api_key, transaction
);
fn inner(api_url: &str, api_key: &str, transaction: Transaction) -> Result<Transaction> {
#[cfg(not(test))]
let url = Url::parse(api_url)?.join("v1/transactions")?;
#[cfg(test)]
let url = Url::parse(&mockito::server_url())?.join("v1/transactions")?;
let client = reqwest::blocking::Client::new();
let resp = client
.post(url)
.header("Api-Key", api_key)
.json(&transaction)
.send()?;
info!("create transaction response from api: {:?}", &resp);
let cache_dir = file_cache_dir(api_url)?;
let headers = resp.headers().clone();
let status = resp.status();
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let bytes = resp.bytes()?;
if status.is_success() {
let json: Transaction = serde_json::from_slice(&bytes)?;
if let Some(id) = json.id {
update_file_cache(&cache_dir.join(format!("transaction_{}.json", id)), &bytes)?;
update_metadata_file_cache(
&cache_dir.join(format!("transaction_{}_metadata.json", id)),
&headers,
)?;
}
Ok(json)
} else {
// TODO: abstract this away into a separate helper
match serde_json::from_slice::<HttpApiProblem>(&bytes) {
Ok(api_problem) => {
let detail = api_problem.detail.unwrap_or("".to_string());
error!(
"Server {}: {}. {}",
status.as_u16(),
api_problem.title,
detail
);
Err(anyhow!(format!(
"Server {}: {}. {}",
status.as_u16(),
api_problem.title,
detail
)))
}
Err(_) => {
let detail = str::from_utf8(&bytes).unwrap_or("unknown");
error!("Server {}: {}", status.as_u16(), detail);
Err(anyhow!(format!("Server {}: {}", status.as_u16(), detail)))
}
}
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}
}
match inner(&api_url, &api_key, transaction) {
Ok(transaction) => {
if let Ok(raw_transaction) = RawTransaction::try_from(transaction) {
FFIResult::Ok(raw_transaction)
} else {
error!("create_transaction failed. API did not return a transaction with an ID");
let err_string =
CString::new("API did not return a transaction with an ID".to_string())
.expect("could not create CString")
.into_raw();
// TODO: also need to drop this CString once C++ is done reading it
FFIResult::Err(err_string)
}
}
Err(err) => {
error!("create_transaction failed. {}", err);
// TODO: also need to drop this CString once C++ is done reading it
let err_string = CString::new(err.to_string())
.expect("could not create CString")
.into_raw();
FFIResult::Err(err_string)
}
}
}
#[cfg(test)]
mod tests {
use std::ffi::CString;
use super::*;
use mockito::mock;
#[test]
fn test_create_transaction() {
let mock = mock("POST", "/v1/transactions")
.with_status(201)
.with_header("content-type", "application/json")
.with_body(
r#"{
"amount": 100,
"created_at": "2020-08-18T00:00:00.000",
"form_type": 41,
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"id": 1,
"is_food": false,
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"is_sell": false,
"local_form_id": 1,
"mod_name": "Skyrim.esm",
"name": "Item",
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"owner_id": 1,
"price": 100,
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"quantity": 1,
"shop_id": 1,
"updated_at": "2020-08-18T00:00:00.000"
}"#,
)
.create();
let api_url = CString::new("url").unwrap().into_raw();
let api_key = CString::new("api-key").unwrap().into_raw();
let mod_name = CString::new("Skyrim.esm").unwrap().into_raw();
let name = CString::new("Item").unwrap().into_raw();
let raw_transaction = RawTransaction {
id: 0,
shop_id: 1,
mod_name,
local_form_id: 1,
name,
form_type: 41,
is_food: false,
price: 100,
is_sell: false,
amount: 100,
quantity: 1,
};
let result = create_transaction(api_url, api_key, raw_transaction);
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mock.assert();
match result {
FFIResult::Ok(raw_transaction) => {
assert_eq!(raw_transaction.id, 1);
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assert_eq!(raw_transaction.shop_id, 1);
assert_eq!(
unsafe { CStr::from_ptr(raw_transaction.mod_name).to_string_lossy() },
"Skyrim.esm"
);
assert_eq!(raw_transaction.local_form_id, 1);
assert_eq!(
unsafe { CStr::from_ptr(raw_transaction.name).to_string_lossy() },
"Item"
);
assert_eq!(raw_transaction.form_type, 41);
assert_eq!(raw_transaction.is_food, false);
assert_eq!(raw_transaction.price, 100);
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assert_eq!(raw_transaction.is_sell, false);
assert_eq!(raw_transaction.quantity, 1);
assert_eq!(raw_transaction.amount, 100);
}
FFIResult::Err(error) => panic!("create_transaction returned error: {:?}", unsafe {
CStr::from_ptr(error).to_string_lossy()
}),
}
}
#[test]
fn test_create_transaction_server_error() {
let mock = mock("POST", "/v1/transactions")
.with_status(500)
.with_header("content-type", "application/problem+json")
.with_body(
r#"{
"detail": "Some error detail",
"instance": "https://httpstatuses.com/500",
"status": 500,
"title": "Internal Server Error"
}"#,
)
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.create();
let api_url = CString::new("url").unwrap().into_raw();
let api_key = CString::new("api-key").unwrap().into_raw();
let mod_name = CString::new("Skyrim.esm").unwrap().into_raw();
let name = CString::new("Item").unwrap().into_raw();
let raw_transaction = RawTransaction {
id: 0,
shop_id: 1,
mod_name,
local_form_id: 1,
name,
form_type: 41,
is_food: false,
price: 100,
is_sell: false,
amount: 100,
quantity: 1,
};
let result = create_transaction(api_url, api_key, raw_transaction);
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mock.assert();
match result {
FFIResult::Ok(raw_transaction) => panic!(
"create_transaction returned Ok result: {:#?}",
raw_transaction
),
FFIResult::Err(error) => {
assert_eq!(
unsafe { CStr::from_ptr(error).to_string_lossy() },
"Server 500: Internal Server Error. Some error detail"
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);
}
}
}
}