steam-user 0.1.0

use std::{collections::HashMap, sync::OnceLock, time::Duration};

use scraper::{Html, Selector};
use serde_json::Value;

use crate::{
    client::SteamUser,
    endpoint::steam_endpoint,
    error::SteamUserError,
    types::apps::{AppDetail, CsgoAccountStats, OwnedApp},
};

/// Connect timeout for the ad-hoc clients in this module (static endpoints
/// that don't go through `SteamUser`'s shared client).
const ADHOC_CONNECT_TIMEOUT: Duration = Duration::from_secs(30);

/// Total request timeout for the ad-hoc clients in this module.
const ADHOC_TIMEOUT: Duration = Duration::from_secs(60);

/// Build a one-off `reqwest::Client` with the project-standard timeouts.
fn build_adhoc_client() -> Result<reqwest::Client, SteamUserError> {
    reqwest::Client::builder().connect_timeout(ADHOC_CONNECT_TIMEOUT).timeout(ADHOC_TIMEOUT).build().map_err(SteamUserError::from)
}

static SEL_KV_LINE: OnceLock<Selector> = OnceLock::new();
fn sel_kv_line() -> &'static Selector {
    SEL_KV_LINE.get_or_init(|| Selector::parse(".generic_kv_table .generic_kv_line").expect("valid CSS selector"))
}

static SEL_KV_TABLE: OnceLock<Selector> = OnceLock::new();
fn sel_kv_table() -> &'static Selector {
    SEL_KV_TABLE.get_or_init(|| Selector::parse("table.generic_kv_table").expect("valid CSS selector"))
}

static SEL_TR: OnceLock<Selector> = OnceLock::new();
fn sel_tr() -> &'static Selector {
    SEL_TR.get_or_init(|| Selector::parse("tr").expect("valid CSS selector"))
}

static SEL_TH: OnceLock<Selector> = OnceLock::new();
fn sel_th() -> &'static Selector {
    SEL_TH.get_or_init(|| Selector::parse("th").expect("valid CSS selector"))
}

static SEL_TD: OnceLock<Selector> = OnceLock::new();
fn sel_td() -> &'static Selector {
    SEL_TD.get_or_init(|| Selector::parse("td").expect("valid CSS selector"))
}

static SEL_MATCH_ANCHOR: OnceLock<Selector> = OnceLock::new();
fn sel_match_anchor() -> &'static Selector {
    SEL_MATCH_ANCHOR.get_or_init(|| Selector::parse("a.match").expect("valid CSS selector"))
}

static SEL_MATCH_NAME: OnceLock<Selector> = OnceLock::new();
fn sel_match_name() -> &'static Selector {
    SEL_MATCH_NAME.get_or_init(|| Selector::parse(".match_name").expect("valid CSS selector"))
}

static SEL_MATCH_IMG: OnceLock<Selector> = OnceLock::new();
fn sel_match_img() -> &'static Selector {
    SEL_MATCH_IMG.get_or_init(|| Selector::parse(".match_img img").expect("valid CSS selector"))
}

static SEL_MATCH_PRICE: OnceLock<Selector> = OnceLock::new();
fn sel_match_price() -> &'static Selector {
    SEL_MATCH_PRICE.get_or_init(|| Selector::parse(".match_price").expect("valid CSS selector"))
}

static SEL_SEARCH_ROW: OnceLock<Selector> = OnceLock::new();
fn sel_search_row() -> &'static Selector {
    SEL_SEARCH_ROW.get_or_init(|| Selector::parse("a.search_result_row").expect("valid CSS selector"))
}

static SEL_SEARCH_NAME: OnceLock<Selector> = OnceLock::new();
fn sel_search_name() -> &'static Selector {
    SEL_SEARCH_NAME.get_or_init(|| Selector::parse(".search_name .title").expect("valid CSS selector"))
}

static SEL_SEARCH_CAPSULE_IMG: OnceLock<Selector> = OnceLock::new();
fn sel_search_capsule_img() -> &'static Selector {
    SEL_SEARCH_CAPSULE_IMG.get_or_init(|| Selector::parse(".search_capsule img").expect("valid CSS selector"))
}

static SEL_SEARCH_PRICE: OnceLock<Selector> = OnceLock::new();
fn sel_search_price() -> &'static Selector {
    SEL_SEARCH_PRICE.get_or_init(|| Selector::parse(".search_price").expect("valid CSS selector"))
}

static SEL_APP_CONFIG: OnceLock<Selector> = OnceLock::new();
fn sel_app_config() -> &'static Selector {
    SEL_APP_CONFIG.get_or_init(|| Selector::parse("#application_config").expect("valid CSS selector"))
}

impl SteamUser {
    /// Retrieves the list of apps owned by the currently authenticated user.
    ///
    /// Fetches the list from `https://steamcommunity.com/actions/GetOwnedApps/`.
    ///
    /// # Returns
    ///
    /// Returns a `Vec<OwnedApp>` containing details about each app owned by the
    /// user.
    ///
    /// # Example
    ///
    /// ```rust,no_run
    /// # use steam_user::client::SteamUser;
    /// # async fn example(user: SteamUser) -> Result<(), Box<dyn std::error::Error>> {
    /// let apps = user.get_owned_apps().await?;
    /// println!("You own {} apps.", apps.len());
    /// # Ok(())
    /// # }
    /// ```
    #[steam_endpoint(GET, host = Community, path = "/actions/GetOwnedApps/", kind = Read)]
    pub async fn get_owned_apps(&self) -> Result<Vec<OwnedApp>, SteamUserError> {
        let response: Value = self.get_path("/actions/GetOwnedApps/").send().await?.json().await?;

        let apps = response.as_array().ok_or_else(|| SteamUserError::MalformedResponse("Expected an array of apps".into()))?;

        let mut owned_apps = Vec::new();
        for app in apps {
            if let Ok(owned_app) = serde_json::from_value::<OwnedApp>(app.clone()) {
                owned_apps.push(owned_app);
            }
        }

        Ok(owned_apps)
    }

    /// Retrieves details for one or more Steam applications.
    ///
    /// Fetches data from the Steam Store API at `https://store.steampowered.com/api/appdetails`.
    ///
    /// # Arguments
    ///
    /// * `app_ids` - A slice of Steam App IDs to fetch details for.
    ///
    /// # Returns
    ///
    /// Returns a `HashMap<u32, AppDetail>` where the key is the App ID and the
    /// value is the [`AppDetail`].
    ///
    /// # Example
    ///
    /// ```rust,no_run
    /// # use steam_user::client::SteamUser;
    /// # async fn example(user: SteamUser) -> Result<(), Box<dyn std::error::Error>> {
    /// let details = user.get_app_detail(&[730, 440]).await?;
    /// if let Some(csgo) = details.get(&730) {
    ///     println!("App name: {}", csgo.name);
    /// }
    /// # Ok(())
    /// # }
    /// ```
    #[steam_endpoint(GET, host = Store, path = "/api/appdetails", kind = Read)]
    pub async fn get_app_detail(&self, app_ids: &[u32]) -> Result<HashMap<u32, AppDetail>, SteamUserError> {
        if app_ids.is_empty() {
            return Ok(HashMap::new());
        }

        let ids = app_ids.iter().map(|id| id.to_string()).collect::<Vec<String>>().join(",");

        let response: Value = self.get_path("/api/appdetails").query(&[("appids", ids.as_str()), ("hl", "en")]).send().await?.json().await?;

        let mut details = HashMap::new();
        if let Some(obj) = response.as_object() {
            for (key, val) in obj {
                if let Ok(app_id) = key.parse::<u32>() {
                    if val["success"].as_bool().unwrap_or(false) {
                        if let Ok(detail) = serde_json::from_value::<AppDetail>(val["data"].clone()) {
                            details.insert(app_id, detail);
                        }
                    }
                }
            }
        }

        Ok(details)
    }

    /// Fetches CS:GO account statistics from the Steam GDPR page.
    ///
    /// Scrapes the GDPR activity page for CS:GO (App ID 730) at `https://steamcommunity.com/my/gcpd/730/?tab=accountmain`.
    /// This includes data like last logout, first played, and profile rank.
    ///
    /// # Returns
    ///
    /// Returns a [`CsgoAccountStats`] struct containing various account
    /// statistics.
    ///
    /// # Example
    ///
    /// ```rust,no_run
    /// # use steam_user::client::SteamUser;
    /// # async fn example(mut user: SteamUser) -> Result<(), Box<dyn std::error::Error>> {
    /// let stats = user.fetch_csgo_account_stats().await?;
    /// if let Some(rank) = stats.profile_rank {
    ///     println!("CS:GO Profile Rank: {}", rank);
    /// }
    /// # Ok(())
    /// # }
    /// ```
    #[steam_endpoint(GET, host = Community, path = "/my/gcpd/730/", kind = Read)]
    pub async fn fetch_csgo_account_stats(&self) -> Result<CsgoAccountStats, SteamUserError> {
        let html = self.my_profile_get("gcpd/730/?tab=accountmain").await?;
        let document = Html::parse_document(&html);

        let mut stats = CsgoAccountStats {
            last_logout_csgo: None,
            last_launch_steam_client: None,
            start_play_csgo: None,
            first_played_cs_franchise: None,
            last_known_ip: None,
            earned_service_medal: None,
            profile_rank: None,
            xp_to_next_rank: None,
            anti_addiction_online_time: None,
        };

        // Parse key-value lines
        for element in document.select(sel_kv_line()) {
            let text = element.text().collect::<String>().trim().to_string();
            let mut parts = text.splitn(2, ": ");
            if let (Some(raw_key), Some(raw_value)) = (parts.next(), parts.next()) {
                let key = raw_key.trim();
                let value = raw_value.trim().to_string();

                match key {
                    "Logged out of CS:GO" => stats.last_logout_csgo = Some(value),
                    "Launched CS:GO using Steam Client" | "Launched CSGO using Steam Client" => stats.last_launch_steam_client = Some(value),
                    "Started playing CS:GO" | "Started playing CSGO" => stats.start_play_csgo = Some(value),
                    "First Counter-Strike franchise game" => stats.first_played_cs_franchise = Some(value),
                    "Last known IP address" => stats.last_known_ip = Some(value),
                    "Earned a Service Medal" => stats.earned_service_medal = Some(value),
                    "CS:GO Profile Rank" | "CSGO Profile Rank" => stats.profile_rank = value.parse().ok(),
                    "Experience points earned towards next rank" => stats.xp_to_next_rank = value.parse().ok(),
                    "Anti-addiction online time" => stats.anti_addiction_online_time = Some(value),
                    _ => {}
                }
            }
        }

        // Parse activity table (some data might be in rows instead of single lines)
        for table in document.select(sel_kv_table()) {
            let mut rows = table.select(sel_tr());
            if let Some(header_row) = rows.next() {
                let headers: Vec<String> = header_row.select(sel_th()).map(|h| h.text().collect::<String>().trim().to_lowercase()).collect();

                if headers.contains(&"recorded activity".to_string()) && headers.contains(&"activity time".to_string()) {
                    for tr in rows {
                        let cells: Vec<String> = tr.select(sel_td()).map(|c| c.text().collect::<String>().trim().to_string()).collect();
                        if cells.len() >= 2 {
                            let key = &cells[0];
                            let value = cells[1].clone();
                            match key.as_str() {
                                "Logged out of CS:GO" => stats.last_logout_csgo = Some(value),
                                "Launched CS:GO using Steam Client" => stats.last_launch_steam_client = Some(value),
                                "Started playing CS:GO" => stats.start_play_csgo = Some(value),
                                "First Counter-Strike franchise game" => stats.first_played_cs_franchise = Some(value),
                                _ => {}
                            }
                        }
                    }
                }
            }
        }

        Ok(stats)
    }

    /// Fetches Steam batched loyalty reward items for given app ID(s).
    ///
    /// Uses the `ILoyaltyRewardsService/BatchedQueryRewardItems` Protobuf API.
    /// Loyalty rewards include items like profile backgrounds, emojis, and
    /// animated avatars.
    ///
    /// # Arguments
    ///
    /// * `app_ids` - A slice of Steam App IDs to query reward items for.
    ///
    /// # Returns
    ///
    /// Returns a `Vec` of Protobuf responses containing reward item details for
    /// each app.
    ///
    /// # Example
    ///
    /// ```rust,no_run
    /// # use steam_user::client::SteamUser;
    /// # async fn example(user: SteamUser) -> Result<(), Box<dyn std::error::Error>> {
    /// let rewards = user.fetch_batched_loyalty_reward_items(&[730]).await?;
    /// println!("Found rewards for {} apps.", rewards.len());
    /// # Ok(())
    /// # }
    /// ```
    #[steam_endpoint(POST, host = Api, path = "/ILoyaltyRewardsService/BatchedQueryRewardItems/v1", kind = Read)]
    pub async fn fetch_batched_loyalty_reward_items(&self, app_ids: &[u32]) -> Result<Vec<steam_protos::messages::CLoyaltyRewardsBatchedQueryRewardItemsResponseResponse>, SteamUserError> {
        use prost::Message;
        use steam_protos::messages::{CLoyaltyRewardsBatchedQueryRewardItemsRequest, CLoyaltyRewardsBatchedQueryRewardItemsResponse, CLoyaltyRewardsQueryRewardItemsRequest};

        if app_ids.is_empty() {
            return Ok(Vec::new());
        }

        let request = CLoyaltyRewardsBatchedQueryRewardItemsRequest {
            requests: app_ids
                .iter()
                .map(|&app_id| CLoyaltyRewardsQueryRewardItemsRequest {
                    appids: vec![app_id],
                    time_available: None,
                    community_item_classes: Vec::new(),
                    language: Some("english".to_string()),
                    count: Some(10),
                    cursor: None,
                    sort: Some(1),
                    sort_descending: Some(true),
                    reward_types: Vec::new(),
                    excluded_community_item_classes: Vec::new(),
                    definitionids: Vec::new(),
                    filters: Vec::new(),
                    filter_match_all_category_tags: Vec::new(),
                    filter_match_any_category_tags: Vec::new(),
                    contains_definitionids: Vec::new(),
                    include_direct_purchase_disabled: None,
                    excluded_content_descriptors: vec![3, 4],
                    excluded_appids: Vec::new(),
                    excluded_store_tagids: Vec::new(),
                    store_tagids: Vec::new(),
                    search_term: None,
                })
                .collect(),
        };

        let mut body = Vec::new();
        request.encode(&mut body)?;

        let params = [("origin", "https://store.steampowered.com"), ("input_protobuf_encoded", &base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &body))];

        let response = self.get_path("/ILoyaltyRewardsService/BatchedQueryRewardItems/v1").query(&params).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let bytes = response.bytes().await?;
        let response_proto = CLoyaltyRewardsBatchedQueryRewardItemsResponse::decode(bytes)?;

        Ok(response_proto.responses)
    }

    /// Retrieves detailed information about all games the user owns.
    ///
    /// Scrapes the games page at `https://steamcommunity.com/my/games/?tab=all`
    /// and parses the `rgGames` JavaScript variable.
    ///
    /// # Returns
    ///
    /// Returns a `Vec<OwnedAppDetail>` containing detailed info about each
    /// owned game.
    #[steam_endpoint(GET, host = Community, path = "/my/games/", kind = Read)]
    pub async fn get_owned_apps_detail(&self) -> Result<Vec<crate::types::apps::OwnedAppDetail>, SteamUserError> {
        let html = self.my_profile_get("games/?tab=all").await?;

        // Find rgGames variable in the HTML
        let start_marker = "var rgGames = ";
        let end_marker = "var rgChangingGames = []";

        let start = html.find(start_marker).ok_or_else(|| SteamUserError::MalformedResponse("rgGames not found".into()))?;

        let rest = &html[start + start_marker.len()..];
        let end = rest.find(end_marker).ok_or_else(|| SteamUserError::MalformedResponse("rgChangingGames not found".into()))?;

        let json_str = rest[..end].trim().trim_end_matches(';').trim();

        let apps: Vec<crate::types::apps::OwnedAppDetail> = serde_json::from_str(json_str).map_err(|e| SteamUserError::MalformedResponse(format!("Failed to parse rgGames: {}", e)))?;

        Ok(apps)
    }

    /// Retrieves dynamic store user data including owned apps, wishlist, and
    /// ignored apps.
    ///
    /// Fetches data from `https://store.steampowered.com/dynamicstore/userdata/`.
    ///
    /// # Returns
    ///
    /// Returns a `DynamicStoreUserData` containing lists of owned apps,
    /// packages, wishlist, etc.
    #[steam_endpoint(GET, host = Store, path = "/dynamicstore/userdata/", kind = Read)]
    pub async fn get_dynamic_store_user_data(&self) -> Result<crate::types::apps::DynamicStoreUserData, SteamUserError> {
        let response = self.get_path("/dynamicstore/userdata/").send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let data: crate::types::apps::DynamicStoreUserData = response.json().await?;
        Ok(data)
    }

    /// Retrieves an array of Steam AppIDs that the current user owns.
    ///
    /// This is a convenience wrapper around `get_dynamic_store_user_data()`.
    // delegates to `get_dynamic_store_user_data` — no #[steam_endpoint]
    ///
    /// # Returns
    ///
    /// Returns a `Vec<u32>` containing owned Steam AppIDs.
    #[tracing::instrument(skip(self))]
    pub async fn get_owned_apps_id(&self) -> Result<Vec<u32>, SteamUserError> {
        let data = self.get_dynamic_store_user_data().await?;
        Ok(data.owned_apps)
    }

    /// Fetches up-to-date status and version information for a Steam app.
    ///
    /// Uses the public API at `https://api.steampowered.com/ISteamApps/UpToDateCheck/v1/`.
    /// This is a static method that doesn't require authentication.
    ///
    /// # Arguments
    ///
    /// * `app_id` - The Steam App ID to check.
    ///
    /// # Returns
    ///
    /// Returns a `SteamAppVersionInfo` containing update status information.
    #[steam_endpoint(GET, host = Api, path = "/ISteamApps/UpToDateCheck/v1/", kind = Read)]
    pub async fn get_steam_app_version_info(app_id: u32) -> Result<crate::types::apps::SteamAppVersionInfo, SteamUserError> {
        let client = build_adhoc_client()?;
        let response = client.get("https://api.steampowered.com/ISteamApps/UpToDateCheck/v1/").query(&[("format", "json"), ("appid", &app_id.to_string()), ("version", "0")]).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let info: crate::types::apps::SteamAppVersionInfo = response.json().await?;
        Ok(info)
    }

    /// Fetches a list of suggested Steam apps based on a search term.
    ///
    /// Uses the Steam store search suggestions at `https://store.steampowered.com/search/suggest`.
    /// This is a static method that doesn't require authentication.
    ///
    /// # Arguments
    ///
    /// * `term` - The search keyword to suggest apps for.
    ///
    /// # Returns
    ///
    /// Returns a `Vec<AppListItem>` containing suggested apps.
    #[steam_endpoint(GET, host = Store, path = "/search/suggest", kind = Read)]
    pub async fn suggest_app_list(term: &str) -> Result<Vec<crate::types::apps::AppListItem>, SteamUserError> {
        let client = build_adhoc_client()?;
        let response = client.get("https://store.steampowered.com/search/suggest").query(&[("term", term), ("f", "games"), ("cc", "VN"), ("realm", "1"), ("l", "english"), ("use_store_query", "1")]).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let html = response.text().await?;
        let document = Html::parse_document(&html);

        let mut items = Vec::new();
        for element in document.select(sel_match_anchor()) {
            let appid = element.value().attr("data-ds-appid").and_then(|s| s.parse::<u32>().ok()).unwrap_or(0);

            let name = element.select(sel_match_name()).next().map(|e| e.text().collect::<String>().trim().to_string()).unwrap_or_default();

            let img = element.select(sel_match_img()).next().and_then(|e| e.value().attr("src")).unwrap_or("").to_string();

            let price = element.select(sel_match_price()).next().map(|e| e.text().collect::<String>().trim().to_string()).unwrap_or_default();

            if appid > 0 {
                items.push(crate::types::apps::AppListItem { appid, name, img, price });
            }
        }

        Ok(items)
    }

    /// Fetches a list of Steam apps from the store search results.
    ///
    /// Uses the Steam store search at `https://store.steampowered.com/search/results/`.
    /// This is a static method that doesn't require authentication.
    ///
    /// # Arguments
    ///
    /// * `term` - The search keyword to query.
    ///
    /// # Returns
    ///
    /// Returns a `Vec<AppListItem>` containing matched apps.
    #[steam_endpoint(GET, host = Store, path = "/search/results/", kind = Read)]
    pub async fn query_app_list(term: &str) -> Result<Vec<crate::types::apps::AppListItem>, SteamUserError> {
        let client = build_adhoc_client()?;
        let response = client.get("https://store.steampowered.com/search/results/").query(&[("query", ""), ("start", "0"), ("count", "50"), ("dynamic_data", ""), ("sort_by", "_ASC"), ("term", term), ("infinite", "1")]).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        #[derive(serde::Deserialize)]
        struct SearchResponse {
            results_html: Option<String>,
        }

        let data: SearchResponse = response.json().await?;
        let results_html = data.results_html.unwrap_or_default();

        let document = Html::parse_document(&results_html);

        let mut items = Vec::new();
        for element in document.select(sel_search_row()) {
            let appid = element.value().attr("data-ds-appid").and_then(|s| s.parse::<u32>().ok()).unwrap_or(0);

            let name = element.select(sel_search_name()).next().map(|e| e.text().collect::<String>().trim().to_string()).unwrap_or_default();

            let img = element.select(sel_search_capsule_img()).next().and_then(|e| e.value().attr("src")).unwrap_or("").to_string();

            let price = element.select(sel_search_price()).next().map(|e| e.text().collect::<String>().trim().to_string()).unwrap_or_default();

            if appid > 0 {
                items.push(crate::types::apps::AppListItem { appid, name, img, price });
            }
        }

        Ok(items)
    }

    /// Retrieves the full list of Steam applications.
    ///
    /// Uses the public API at `https://api.steampowered.com/ISteamApps/GetAppList/v0002/`.
    /// This is a static method that doesn't require authentication.
    ///
    /// # Returns
    ///
    /// Returns a `SimpleSteamAppList` containing all Steam applications.
    #[steam_endpoint(GET, host = Api, path = "/ISteamApps/GetAppList/v0002/", kind = Read)]
    pub async fn get_app_list() -> Result<crate::types::apps::SimpleSteamAppList, SteamUserError> {
        let client = build_adhoc_client()?;
        let response = client.get("https://api.steampowered.com/ISteamApps/GetAppList/v0002/?format=json").send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let list: crate::types::apps::SimpleSteamAppList = response.json().await?;
        Ok(list)
    }

    /// Fetches CS2 matchmaking stats (cooldown, summary, per-map, last played).
    ///
    /// Scrapes `https://steamcommunity.com/my/gcpd/730/?tab=matchmaking`.
    ///
    /// # Returns
    ///
    /// Returns a [`MatchmakingStats`] with all four tables parsed from the
    /// page.
    #[steam_endpoint(GET, host = Community, path = "/my/gcpd/730/", kind = Read)]
    pub async fn fetch_matchmaking_stats(&self) -> Result<crate::types::apps::MatchmakingStats, SteamUserError> {
        let html = self.my_profile_get("gcpd/730/?tab=matchmaking").await?;
        Ok(parse_matchmaking_html(&html))
    }
}

/// Parses the CS2 GCPD matchmaking HTML page into a [`MatchmakingStats`]
/// struct.
///
/// Accepts raw HTML (as fetched from `gcpd/730/?tab=matchmaking` or saved
/// locally).
pub fn parse_matchmaking_html(html: &str) -> crate::types::apps::MatchmakingStats {
    let document = Html::parse_document(html);

    let mut matchmaking_cooldown = None;
    let mut matchmaking_summary = Vec::new();
    let mut matchmaking_per_map = Vec::new();
    let mut last_played_modes = None;

    for table in document.select(sel_kv_table()) {
        let mut rows = table.select(sel_tr());
        if let Some(header_row) = rows.next() {
            let headers: Vec<String> = header_row.select(sel_th()).map(|h| h.text().collect::<String>().trim().to_lowercase()).collect();

            if headers == ["competitive cooldown expiration", "competitive cooldown level", "acknowledged"] {
                // Table 1: matchmaking_cooldown — Expiration | Level | Acknowledged
                let mut list = Vec::new();
                for tr in rows {
                    let cells: Vec<String> = tr.select(sel_td()).map(|c| c.text().collect::<String>().trim().to_string()).collect();
                    if cells.len() >= 3 {
                        list.push(crate::types::apps::CooldownInfo {
                            competitive_cooldown_expiration: cells.first().map(|s| {
                                if s.eq_ignore_ascii_case("never") || s.is_empty() {
                                    crate::types::apps::CooldownExpiration::Never
                                } else {
                                    let clean = s.replace("GMT", "");
                                    chrono::NaiveDateTime::parse_from_str(clean.trim(), "%Y-%m-%d %H:%M:%S").map(|dt| crate::types::apps::CooldownExpiration::At(dt.and_utc())).unwrap_or(crate::types::apps::CooldownExpiration::Never)
                                }
                            }),
                            competitive_cooldown_level: cells.get(1).and_then(|s| s.parse().ok()),
                            acknowledged: cells.get(2).is_some_and(|s| s.eq_ignore_ascii_case("yes")),
                        });
                    }
                }
                if !list.is_empty() {
                    matchmaking_cooldown = Some(list);
                }
            } else if headers == ["matchmaking mode", "map", "wins", "ties", "losses", "skill group", "last match", "region"] {
                // Table 3: matchmaking_per_map — Mode | Map | Wins | Ties | Losses | Skill
                // Group | Last Match | Region
                for tr in rows {
                    let cells: Vec<String> = tr.select(sel_td()).map(|c| c.text().collect::<String>().trim().to_string()).collect();
                    if cells.len() >= 2 {
                        matchmaking_per_map.push(crate::types::apps::MatchmakingPerMap {
                            matchmaking_mode: cells.first().cloned(),
                            map: cells.get(1).cloned(),
                            wins: cells.get(2).and_then(|s| s.parse().ok()),
                            ties: cells.get(3).and_then(|s| s.parse().ok()),
                            losses: cells.get(4).and_then(|s| s.parse().ok()),
                            skill_group: cells.get(5).cloned(),
                            last_match: cells.get(6).cloned(),
                            region: cells.get(7).and_then(|s| s.parse().ok()),
                        });
                    }
                }
            } else if headers == ["matchmaking mode", "wins", "ties", "losses", "skill group", "last match", "region"] {
                // Table 2: matchmaking_summary — Mode | Wins | Ties | Losses | Skill Group |
                // Last Match | Region
                for tr in rows {
                    let cells: Vec<String> = tr.select(sel_td()).map(|c| c.text().collect::<String>().trim().to_string()).collect();
                    if cells.len() >= 2 {
                        matchmaking_summary.push(crate::types::apps::MatchmakingSummary {
                            matchmaking_mode: cells.first().cloned(),
                            wins: cells.get(1).and_then(|s| s.parse().ok()),
                            ties: cells.get(2).and_then(|s| s.parse().ok()),
                            losses: cells.get(3).and_then(|s| s.parse().ok()),
                            skill_group: cells.get(4).cloned(),
                            last_match: cells.get(5).cloned(),
                            region: cells.get(6).and_then(|s| s.parse().ok()),
                        });
                    }
                }
            } else if headers == ["matchmaking mode", "last match"] {
                // Table 4: last_played_modes — Mode | Last Match
                let mut list = Vec::new();
                for tr in rows {
                    let cells: Vec<String> = tr.select(sel_td()).map(|c| c.text().collect::<String>().trim().to_string()).collect();
                    if cells.len() >= 2 {
                        list.push(crate::types::apps::LastPlayedMode { matchmaking_mode: cells.first().cloned(), last_match: cells.get(1).cloned() });
                    }
                }
                if !list.is_empty() {
                    last_played_modes = Some(list);
                }
            }
        }
    }

    crate::types::apps::MatchmakingStats { matchmaking_cooldown, matchmaking_summary, matchmaking_per_map, last_played_modes }
}

impl SteamUser {
    /// Fetches eligible event apps from the Steam Points Shop.
    ///
    /// Scrapes `https://store.steampowered.com/points/shop/c/events` and parses
    /// the loyalty store data to find event apps.
    /// This is a static method that doesn't require authentication.
    ///
    /// # Returns
    ///
    /// Returns a `Vec<EligibleEventApp>` containing eligible event apps.
    #[steam_endpoint(GET, host = Store, path = "/points/shop/c/events", kind = Read)]
    pub async fn get_eligible_event_apps() -> Result<Vec<crate::types::apps::EligibleEventApp>, SteamUserError> {
        let client = build_adhoc_client()?;
        let response = client.get("https://store.steampowered.com/points/shop/c/events").send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let html = response.text().await?;
        let document = Html::parse_document(&html);

        let loyalty_str = document.select(sel_app_config()).next().and_then(|e| e.value().attr("data-loyaltystore")).ok_or_else(|| SteamUserError::MalformedResponse("data-loyaltystore not found".into()))?;

        #[derive(serde::Deserialize)]
        struct LoyaltyStore {
            eligible_apps: Option<EligibleApps>,
        }
        #[derive(serde::Deserialize)]
        struct EligibleApps {
            apps: Vec<crate::types::apps::EligibleEventApp>,
        }

        let loyalty_obj: LoyaltyStore = serde_json::from_str(loyalty_str).map_err(|e| SteamUserError::MalformedResponse(format!("Failed to parse loyalty store: {}", e)))?;

        let apps = loyalty_obj.eligible_apps.map(|ea| ea.apps.into_iter().filter(|a| a.event_app).collect()).unwrap_or_default();

        Ok(apps)
    }

    /// Fetches Steam app information using the Community GetApps API.
    ///
    /// Uses the protobuf endpoint at `https://api.steampowered.com/ICommunityService/GetApps/v1`.
    ///
    /// # Arguments
    ///
    /// * `app_ids` - A slice of Steam App IDs to fetch.
    ///
    /// # Returns
    ///
    /// Returns the protobuf response containing app information.
    #[steam_endpoint(POST, host = Api, path = "/ICommunityService/GetApps/v1", kind = Read)]
    pub async fn get_community_apps(&self, app_ids: &[u32]) -> Result<steam_protos::messages::community::CCommunityGetAppsResponse, SteamUserError> {
        use prost::Message;
        use steam_protos::messages::community::CCommunityGetAppsRequest;

        if app_ids.is_empty() {
            return Ok(steam_protos::messages::community::CCommunityGetAppsResponse { apps: Vec::new() });
        }

        let request = CCommunityGetAppsRequest { appids: app_ids.to_vec(), language: Some(0) };

        let mut body = Vec::new();
        request.encode(&mut body)?;

        let params = [("origin", "https://store.steampowered.com"), ("input_protobuf_encoded", &base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &body))];

        let response = self.get_path("/ICommunityService/GetApps/v1").query(&params).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let bytes = response.bytes().await?;
        let response_proto = steam_protos::messages::community::CCommunityGetAppsResponse::decode(bytes)?;

        Ok(response_proto)
    }

    /// Retrieves Steam Store items for given app IDs.
    ///
    /// Uses the protobuf endpoint at `https://api.steampowered.com/IStoreBrowseService/GetItems/v1`.
    ///
    /// # Arguments
    ///
    /// * `app_ids` - A slice of Steam App IDs to fetch store items for.
    ///
    /// # Returns
    ///
    /// Returns the protobuf response containing store item information.
    #[steam_endpoint(POST, host = Api, path = "/IStoreBrowseService/GetItems/v1", kind = Read)]
    pub async fn get_steam_store_items(&self, app_ids: &[u32]) -> Result<steam_protos::messages::store::CStoreBrowseGetItemsResponse, SteamUserError> {
        use prost::Message;
        use steam_protos::messages::store::{
            c_store_browse_get_items_request::{StoreBrowseContext, StoreBrowseItemDataRequest, StoreItemId},
            CStoreBrowseGetItemsRequest,
        };

        if app_ids.is_empty() {
            return Ok(steam_protos::messages::store::CStoreBrowseGetItemsResponse { store_items: Vec::new() });
        }

        let request = CStoreBrowseGetItemsRequest {
            ids: app_ids.iter().map(|&appid| StoreItemId { appid: Some(appid), packageid: None, bundleid: None, tagid: None, creatorid: None, hubcategoryid: None }).collect(),
            context: Some(StoreBrowseContext {
                language: Some("english".to_string()),
                elanguage: None,
                country_code: Some("VN".to_string()),
                steam_realm: Some(1),
            }),
            data_request: Some(StoreBrowseItemDataRequest {
                include_assets: Some(true),
                include_release: None,
                include_platforms: None,
                include_all_purchase_options: None,
                include_screenshots: None,
                include_trailers: None,
                include_ratings: None,
                include_tag_count: None,
                include_reviews: None,
                include_basic_info: None,
                include_supported_languages: None,
                include_full_description: None,
                include_included_items: None,
                included_item_data_request: None,
                include_assets_without_overrides: None,
                apply_user_filters: None,
                include_links: None,
            }),
        };

        let mut body = Vec::new();
        request.encode(&mut body)?;

        let params = [("origin", "https://store.steampowered.com"), ("input_protobuf_encoded", &base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &body))];

        let response = self.get_path("/IStoreBrowseService/GetItems/v1").query(&params).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let bytes = response.bytes().await?;
        let response_proto = steam_protos::messages::store::CStoreBrowseGetItemsResponse::decode(bytes)?;

        Ok(response_proto)
    }

    /// Checks which friends own a specific package (useful for gifting
    /// validation).
    ///
    /// Uses the `ICheckoutService/GetFriendOwnershipForGifting/v1` endpoint.
    ///
    /// # Arguments
    ///
    /// * `access_token` - The OAuth access token to use.
    /// * `package_id` - The Steam Package ID to check (e.g. 54029 for CS:GO
    ///   Prime).
    ///
    /// # Returns
    ///
    /// Returns a `FriendOwnershipResponse` containing ownership info for
    /// friends.
    #[steam_endpoint(POST, host = Api, path = "/ICheckoutService/GetFriendOwnershipForGifting/v1", kind = Read)]
    pub async fn get_friend_ownership_for_gifting(&self, access_token: &str, package_id: u32) -> Result<crate::types::apps::FriendOwnershipResponse, SteamUserError> {
        use prost::Message;

        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct OwnershipItemIdProto {
            #[prost(uint32, optional, tag = "1")]
            pub appid: Option<u32>,
            #[prost(uint32, optional, tag = "2")]
            pub packageid: Option<u32>,
            #[prost(uint32, optional, tag = "3")]
            pub bundleid: Option<u32>,
            #[prost(uint32, optional, tag = "4")]
            pub tagid: Option<u32>,
            #[prost(uint32, optional, tag = "5")]
            pub creatorid: Option<u32>,
            #[prost(uint32, optional, tag = "6")]
            pub hubcategoryid: Option<u32>,
        }

        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct CCheckoutGetFriendOwnershipForGiftingRequest {
            #[prost(message, repeated, tag = "1")]
            pub item_ids: ::prost::alloc::vec::Vec<OwnershipItemIdProto>,
        }

        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct FriendOwnershipProto {
            #[prost(uint32, repeated, tag = "1")]
            pub partial_owns_appids: ::prost::alloc::vec::Vec<u32>,
            #[prost(uint32, repeated, tag = "2")]
            pub partial_wishes_for: ::prost::alloc::vec::Vec<u32>,
            #[prost(uint32, tag = "3")]
            pub accountid: u32,
            #[prost(bool, tag = "4")]
            pub already_owns: bool,
            #[prost(bool, tag = "5")]
            pub wishes_for: bool,
        }

        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct FriendOwnershipInfoProto {
            #[prost(message, repeated, tag = "1")]
            pub friend_ownership: ::prost::alloc::vec::Vec<FriendOwnershipProto>,
            #[prost(message, optional, tag = "2")]
            pub item_id: Option<OwnershipItemIdProto>,
        }

        #[derive(Clone, PartialEq, ::prost::Message)]
        pub struct CCheckoutGetFriendOwnershipForGiftingResponse {
            #[prost(message, repeated, tag = "1")]
            pub ownership_info: ::prost::alloc::vec::Vec<FriendOwnershipInfoProto>,
        }

        let item_id = OwnershipItemIdProto { packageid: Some(package_id), appid: None, bundleid: None, tagid: None, creatorid: None, hubcategoryid: None };

        let request = CCheckoutGetFriendOwnershipForGiftingRequest { item_ids: vec![item_id] };

        let mut body = Vec::new();
        request.encode(&mut body)?;

        let params = [("access_token", access_token), ("spoof_steamid", ""), ("origin", "https://store.steampowered.com"), ("input_protobuf_encoded", &base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &body))];

        let response = self.get_path("/ICheckoutService/GetFriendOwnershipForGifting/v1").query(&params).send().await?;

        if !response.status().is_success() {
            return Err(SteamUserError::HttpStatus {
                status: response.status().as_u16(),
                url: response.url().to_string(),
            });
        }

        let bytes = response.bytes().await?;
        let response_proto = CCheckoutGetFriendOwnershipForGiftingResponse::decode(bytes)?;

        let ownership_info = response_proto
            .ownership_info
            .into_iter()
            .map(|info| crate::types::apps::FriendOwnershipInfo {
                friend_ownership: info
                    .friend_ownership
                    .into_iter()
                    .map(|fo| crate::types::apps::FriendOwnership {
                        partial_owns_appids: fo.partial_owns_appids,
                        partial_wishes_for: fo.partial_wishes_for,
                        accountid: fo.accountid,
                        already_owns: fo.already_owns,
                        wishes_for: fo.wishes_for,
                    })
                    .collect(),
                item_id: info.item_id.map(|id| crate::types::apps::OwnershipItemId {
                    appid: id.appid,
                    packageid: id.packageid,
                    bundleid: id.bundleid,
                    tagid: id.tagid,
                    creatorid: id.creatorid,
                    hubcategoryid: id.hubcategoryid,
                }),
            })
            .collect();

        Ok(crate::types::apps::FriendOwnershipResponse { ownership_info })
    }
}