Bare minimum functionality. Steam Web API, tag weighting, etc

src-tauri/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "backlog-helper"
+version = "0.1.0"
+description = "Steam Backlog Helper"
+authors = ["Boris"]
+edition = "2021"
+license = ""
+repository = ""
+
+[lib]
+name = "backlog_helper_lib"
+crate-type = ["staticlib", "cdylib", "rlib"]
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+reqwest = { version = "0.12", features = ["json"] }
+rusqlite = { version = "0.32", features = ["bundled"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tauri = { version = "2", features = [] }
+tauri-plugin-opener = "2"

src-tauri/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    tauri_build::build()
+}

src-tauri/capabilities/default.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Default desktop permissions for Steam Backlog Helper.",
+  "windows": ["main"],
+  "permissions": ["opener:default"]
+}

src-tauri/gen/schemas/acl-manifests.json

@@ -0,0 +1 @@
+{"core":{"default_permission":{"identifier":"default","description":"Default core plugins set.","permissions":["core:path:default","core:event:default","core:window:default","core:webview:default","core:app:default","core:image:default","core:resources:default","core:menu:default","core:tray:default"]},"permissions":{},"permission_sets":{},"global_scope_schema":null},"core:app":{"default_permission":{"identifier":"default","description":"Default permissions for the plugin.","permissions":["allow-version","allow-name","allow-tauri-version","allow-identifier","allow-bundle-type","allow-register-listener","allow-remove-listener","allow-supports-multiple-windows"]},"permissions":{"allow-app-hide":{"identifier":"allow-app-hide","description":"Enables the app_hide command without any pre-configured scope.","commands":{"allow":["app_hide"],"deny":[]}},"allow-app-show":{"identifier":"allow-app-show","description":"Enables the app_show command without any pre-configured scope.","commands":{"allow":["app_show"],"deny":[]}},"allow-bundle-type":{"identifier":"allow-bundle-type","description":"Enables the bundle_type command without any pre-configured scope.","commands":{"allow":["bundle_type"],"deny":[]}},"allow-default-window-icon":{"identifier":"allow-default-window-icon","description":"Enables the default_window_icon command without any pre-configured scope.","commands":{"allow":["default_window_icon"],"deny":[]}},"allow-fetch-data-store-identifiers":{"identifier":"allow-fetch-data-store-identifiers","description":"Enables the fetch_data_store_identifiers command without any pre-configured scope.","commands":{"allow":["fetch_data_store_identifiers"],"deny":[]}},"allow-identifier":{"identifier":"allow-identifier","description":"Enables the identifier command without any pre-configured scope.","commands":{"allow":["identifier"],"deny":[]}},"allow-name":{"identifier":"allow-name","description":"Enables the name command without any pre-configured scope.","commands":{"allow":["name"],"deny":[]}},"allow-register-listener":{"identifier":"allow-register-listener","description":"Enables the register_listener command without any pre-configured scope.","commands":{"allow":["register_listener"],"deny":[]}},"allow-remove-data-store":{"identifier":"allow-remove-data-store","description":"Enables the remove_data_store command without any pre-configured scope.","commands":{"allow":["remove_data_store"],"deny":[]}},"allow-remove-listener":{"identifier":"allow-remove-listener","description":"Enables the remove_listener command without any pre-configured scope.","commands":{"allow":["remove_listener"],"deny":[]}},"allow-set-app-theme":{"identifier":"allow-set-app-theme","description":"Enables the set_app_theme command without any pre-configured scope.","commands":{"allow":["set_app_theme"],"deny":[]}},"allow-set-dock-visibility":{"identifier":"allow-set-dock-visibility","description":"Enables the set_dock_visibility command without any pre-configured scope.","commands":{"allow":["set_dock_visibility"],"deny":[]}},"allow-supports-multiple-windows":{"identifier":"allow-supports-multiple-windows","description":"Enables the supports_multiple_windows command without any pre-configured scope.","commands":{"allow":["supports_multiple_windows"],"deny":[]}},"allow-tauri-version":{"identifier":"allow-tauri-version","description":"Enables the tauri_version command without any pre-configured scope.","commands":{"allow":["tauri_version"],"deny":[]}},"allow-version":{"identifier":"allow-version","description":"Enables the version command without any pre-configured scope.","commands":{"allow":["version"],"deny":[]}},"deny-app-hide":{"identifier":"deny-app-hide","description":"Denies the app_hide command without any pre-configured scope.","commands":{"allow":[],"deny":["app_hide"]}},"deny-app-show":{"identifier":"deny-app-show","description":"Denies the app_show command without any pre-configured scope.","commands":{"allow":[],"deny":["app_show"]}},"deny-bundle-type":{"identifier":"deny-bundle-type","description":"Denies the bundle_type command without any pre-configured scope.","commands":{"allow":[],"deny":["bundle_type"]}},"deny-default-window-icon":{"identifier":"deny-default-window-icon","description":"Denies the default_window_icon command without any pre-configured scope.","commands":{"allow":[],"deny":["default_window_icon"]}},"deny-fetch-data-store-identifiers":{"identifier":"deny-fetch-data-store-identifiers","description":"Denies the fetch_data_store_identifiers command without any pre-configured scope.","commands":{"allow":[],"deny":["fetch_data_store_identifiers"]}},"deny-identifier":{"identifier":"deny-identifier","description":"Denies the identifier command without any pre-configured scope.","commands":{"allow":[],"deny":["identifier"]}},"deny-name":{"identifier":"deny-name","description":"Denies the name command without any pre-configured scope.","commands":{"allow":[],"deny":["name"]}},"deny-register-listener":{"identifier":"deny-reLine truncated

src-tauri/gen/schemas/capabilities.json

@@ -0,0 +1 @@
+{"default":{"identifier":"default","description":"Default desktop permissions for Steam Backlog Helper.","local":true,"windows":["main"],"permissions":["opener:default"]}}

src-tauri/icons/android/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <background android:drawable="@color/ic_launcher_background"/>
+</adaptive-icon>

src-tauri/icons/android/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="ic_launcher_background">#fff</color>
+</resources>

src-tauri/src/lib.rs

@@ -0,0 +1,754 @@
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::fs;
+use std::path::PathBuf;
+use std::time::Duration;
+use tauri::{Manager, WebviewUrl, WebviewWindowBuilder};
+
+#[derive(Debug, Deserialize)]
+struct ResolveVanityResponse {
+    response: ResolveVanityPayload,
+}
+
+#[derive(Debug, Deserialize)]
+struct ResolveVanityPayload {
+    success: i32,
+    steamid: Option<String>,
+    message: Option<String>,
+}
+
+#[derive(Debug, Deserialize)]
+struct OwnedGamesResponse {
+    response: OwnedGamesPayload,
+}
+
+#[derive(Debug, Deserialize)]
+struct OwnedGamesPayload {
+    games: Option<Vec<OwnedGame>>,
+}
+
+#[derive(Debug, Deserialize)]
+struct OwnedGame {
+    appid: u32,
+    name: Option<String>,
+    playtime_forever: Option<u32>,
+}
+
+#[derive(Debug, Deserialize)]
+struct StoreAppDetails {
+    success: bool,
+    data: Option<StoreAppData>,
+}
+
+#[derive(Debug, Deserialize)]
+struct StoreAppData {
+    #[serde(rename = "type")]
+    app_type: Option<String>,
+    name: Option<String>,
+    header_image: Option<String>,
+    genres: Option<Vec<StoreNamedValue>>,
+    categories: Option<Vec<StoreNamedValue>>,
+}
+
+#[derive(Clone, Debug, Deserialize)]
+struct StoreNamedValue {
+    description: String,
+}
+
+#[derive(Debug, Deserialize)]
+struct AppReviewsResponse {
+    success: i32,
+    query_summary: Option<AppReviewSummary>,
+}
+
+#[derive(Debug, Deserialize)]
+struct AppReviewSummary {
+    review_score_desc: Option<String>,
+    total_positive: Option<u32>,
+    total_reviews: Option<u32>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct Recommendation {
+    app_id: u32,
+    rank: usize,
+    title: String,
+    fit: String,
+    reason: String,
+    image_url: String,
+    playtime_minutes: u32,
+    genres: Vec<String>,
+    steam_tags: Vec<String>,
+    categories: Vec<String>,
+    review_summary: String,
+    review_percent: Option<u8>,
+    supports_singleplayer: bool,
+    supports_multiplayer: bool,
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct SetupSettings {
+    steam_profile: String,
+    steam_api_key: String,
+    time_to_beat_provider: String,
+    default_session_length: String,
+    true_random_enabled: bool,
+    include_unplayed_games: bool,
+    include_played_games: bool,
+    preferred_review_level: String,
+    preferred_play_mode: String,
+    preferred_genre: String,
+    preferred_playtime: String,
+}
+
+#[tauri::command]
+fn app_name() -> &'static str {
+    "Steam Backlog Helper"
+}
+
+#[tauri::command]
+fn open_debug_window(app: tauri::AppHandle) -> Result<(), String> {
+    if let Some(window) = app.get_webview_window("debug") {
+        window
+            .set_focus()
+            .map_err(|error| format!("Could not focus debug window: {error}"))?;
+        return Ok(());
+    }
+
+    WebviewWindowBuilder::new(&app, "debug", WebviewUrl::App("/#debug".into()))
+        .title("Steam Backlog Helper Debug")
+        .inner_size(1120.0, 820.0)
+        .min_inner_size(760.0, 520.0)
+        .resizable(true)
+        .build()
+        .map_err(|error| format!("Could not open debug window: {error}"))?;
+
+    Ok(())
+}
+
+#[tauri::command]
+fn save_setup_settings(app: tauri::AppHandle, settings: SetupSettings) -> Result<(), String> {
+    let connection = open_database(&app)?;
+
+    connection
+        .execute(
+            "CREATE TABLE IF NOT EXISTS app_settings (
+                key TEXT PRIMARY KEY NOT NULL,
+                value TEXT NOT NULL,
+                updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+            )",
+            [],
+        )
+        .map_err(|error| format!("Could not prepare settings database: {error}"))?;
+
+    let values = [
+        ("steam_profile", settings.steam_profile),
+        ("steam_api_key", settings.steam_api_key),
+        ("time_to_beat_provider", settings.time_to_beat_provider),
+        ("default_session_length", settings.default_session_length),
+        (
+            "true_random_enabled",
+            settings.true_random_enabled.to_string(),
+        ),
+        (
+            "include_unplayed_games",
+            settings.include_unplayed_games.to_string(),
+        ),
+        (
+            "include_played_games",
+            settings.include_played_games.to_string(),
+        ),
+        ("preferred_review_level", settings.preferred_review_level),
+        ("preferred_play_mode", settings.preferred_play_mode),
+        ("preferred_genre", settings.preferred_genre),
+        ("preferred_playtime", settings.preferred_playtime),
+    ];
+
+    for (key, value) in values {
+        connection
+            .execute(
+                "INSERT INTO app_settings (key, value, updated_at)
+                 VALUES (?1, ?2, CURRENT_TIMESTAMP)
+                 ON CONFLICT(key) DO UPDATE SET
+                    value = excluded.value,
+                    updated_at = CURRENT_TIMESTAMP",
+                (key, value),
+            )
+            .map_err(|error| format!("Could not save setting {key}: {error}"))?;
+    }
+
+    Ok(())
+}
+
+#[tauri::command]
+fn load_setup_settings(app: tauri::AppHandle) -> Result<Option<SetupSettings>, String> {
+    let connection = open_database(&app)?;
+
+    connection
+        .execute(
+            "CREATE TABLE IF NOT EXISTS app_settings (
+                key TEXT PRIMARY KEY NOT NULL,
+                value TEXT NOT NULL,
+                updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+            )",
+            [],
+        )
+        .map_err(|error| format!("Could not prepare settings database: {error}"))?;
+
+    let steam_profile = read_setting(&connection, "steam_profile")?;
+    let steam_api_key = read_setting(&connection, "steam_api_key")?;
+
+    if steam_profile.is_empty() && steam_api_key.is_empty() {
+        return Ok(None);
+    }
+
+    Ok(Some(SetupSettings {
+        steam_profile,
+        steam_api_key,
+        time_to_beat_provider: read_setting(&connection, "time_to_beat_provider")?,
+        default_session_length: {
+            let value = read_setting(&connection, "default_session_length")?;
+            if value.is_empty() {
+                "90 minutes".to_string()
+            } else {
+                value
+            }
+        },
+        true_random_enabled: read_setting(&connection, "true_random_enabled")? == "true",
+        include_unplayed_games: read_bool_setting(&connection, "include_unplayed_games", true)?,
+        include_played_games: read_bool_setting(&connection, "include_played_games", true)?,
+        preferred_review_level: read_setting_with_default(
+            &connection,
+            "preferred_review_level",
+            "any",
+        )?,
+        preferred_play_mode: read_setting_with_default(&connection, "preferred_play_mode", "any")?,
+        preferred_genre: read_setting(&connection, "preferred_genre")?,
+        preferred_playtime: read_setting_with_default(&connection, "preferred_playtime", "any")?,
+    }))
+}
+
+#[tauri::command]
+async fn import_steam_library(
+    steam_profile: String,
+    api_key: String,
+) -> Result<Vec<Recommendation>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(Duration::from_secs(20))
+        .build()
+        .map_err(|error| format!("Could not prepare Steam HTTP client: {error}"))?;
+    let steam_id = resolve_steam_id(&client, &steam_profile, &api_key).await?;
+    let url = format!(
+        "https://api.steampowered.com/IPlayerService/GetOwnedGames/v0001/?key={api_key}&steamid={steam_id}&format=json&include_appinfo=true&include_played_free_games=true"
+    );
+
+    let response = client
+        .get(url)
+        .send()
+        .await
+        .map_err(|error| format!("Could not fetch owned games: {error}"))?;
+
+    if !response.status().is_success() {
+        return Err(format!(
+            "Steam owned-games request failed with HTTP {}.",
+            response.status()
+        ));
+    }
+
+    let payload = response
+        .json::<OwnedGamesResponse>()
+        .await
+        .map_err(|error| format!("Could not read owned-games response: {error}"))?;
+
+    let mut games = payload.response.games.unwrap_or_default();
+    games.sort_by(|left, right| {
+        left.name
+            .as_deref()
+            .unwrap_or("")
+            .cmp(right.name.as_deref().unwrap_or(""))
+    });
+
+    if games.is_empty() {
+        return Err(
+            "No games were returned. Check profile privacy and Steam API key access.".to_string(),
+        );
+    }
+
+    let mut recommendations = Vec::new();
+
+    for game in games {
+        if let Some(recommendation) = build_recommendation(game) {
+            recommendations.push(recommendation);
+        }
+    }
+
+    for (index, recommendation) in recommendations.iter_mut().enumerate() {
+        recommendation.rank = index + 1;
+    }
+
+    if recommendations.is_empty() {
+        return Err("Steam returned owned apps, but none had usable app names.".to_string());
+    }
+
+    Ok(recommendations)
+}
+
+#[tauri::command]
+async fn enrich_steam_metadata(games: Vec<Recommendation>) -> Result<Vec<Recommendation>, String> {
+    let client = reqwest::Client::builder()
+        .timeout(Duration::from_secs(12))
+        .build()
+        .map_err(|error| format!("Could not prepare Steam metadata HTTP client: {error}"))?;
+    let mut enriched_games = Vec::with_capacity(games.len());
+
+    for chunk in games.chunks(12) {
+        let app_details = fetch_store_metadata_batch(&client, chunk)
+            .await
+            .unwrap_or_default();
+
+        for game in chunk {
+            let mut enriched_game = game.clone();
+
+            if let Some(metadata) = app_details.get(&game.app_id) {
+                if !metadata
+                    .app_type
+                    .as_deref()
+                    .is_some_and(|app_type| app_type.eq_ignore_ascii_case("game"))
+                {
+                    continue;
+                }
+
+                enriched_game.title = metadata
+                    .name
+                    .clone()
+                    .unwrap_or_else(|| enriched_game.title.clone());
+                enriched_game.image_url = metadata
+                    .header_image
+                    .clone()
+                    .unwrap_or_else(|| enriched_game.image_url.clone());
+                enriched_game.genres = named_values_to_strings(metadata.genres.as_ref());
+                enriched_game.categories = named_values_to_strings(metadata.categories.as_ref());
+                enriched_game.supports_singleplayer = has_singleplayer(&enriched_game.categories);
+                enriched_game.supports_multiplayer = has_multiplayer(&enriched_game.categories);
+            }
+
+            let reviews = fetch_review_summary(&client, game.app_id)
+                .await
+                .unwrap_or(None);
+            enriched_game.review_summary = reviews
+                .as_ref()
+                .and_then(|summary| summary.review_score_desc.clone())
+                .unwrap_or_else(|| "No public review signal".to_string());
+            enriched_game.review_percent = reviews.as_ref().and_then(review_percent);
+
+            enriched_game.steam_tags = fetch_store_tags(&client, game.app_id)
+                .await
+                .unwrap_or_default();
+
+            enriched_game.reason = build_enriched_reason(&enriched_game);
+            enriched_games.push(enriched_game);
+        }
+    }
+
+    for (index, game) in enriched_games.iter_mut().enumerate() {
+        game.rank = index + 1;
+    }
+
+    Ok(enriched_games)
+}
+
+fn build_recommendation(game: OwnedGame) -> Option<Recommendation> {
+    let title = match game.name {
+        Some(title) => title,
+        None => return None,
+    };
+    let playtime_minutes = game.playtime_forever.unwrap_or_default();
+    let playtime_hours = playtime_minutes / 60;
+    let genres = Vec::new();
+    let categories = Vec::new();
+    let review_summary = "Review signal pending".to_string();
+    let review_percent = None;
+    let supports_singleplayer = false;
+    let supports_multiplayer = false;
+
+    Some(Recommendation {
+        app_id: game.appid,
+        rank: 0,
+        title,
+        fit: if playtime_hours == 0 {
+            "Unplayed".to_string()
+        } else {
+            format!("{playtime_hours}h played")
+        },
+        reason: format!(
+            "Imported from your Steam library. Metadata enrichment will filter app type, genres, categories, and review signals in a background pass."
+        ),
+        image_url: format!(
+            "https://cdn.akamai.steamstatic.com/steam/apps/{}/header.jpg",
+            game.appid
+        ),
+        playtime_minutes,
+        genres,
+        steam_tags: Vec::new(),
+        categories,
+        review_summary,
+        review_percent,
+        supports_singleplayer,
+        supports_multiplayer,
+    })
+}
+
+async fn fetch_store_metadata_batch(
+    client: &reqwest::Client,
+    games: &[Recommendation],
+) -> Result<HashMap<u32, StoreAppData>, String> {
+    if games.is_empty() {
+        return Ok(HashMap::new());
+    }
+
+    let app_ids = games
+        .iter()
+        .map(|game| game.app_id.to_string())
+        .collect::<Vec<_>>()
+        .join(",");
+    let url = format!(
+        "https://store.steampowered.com/api/appdetails?appids={app_ids}&filters=basic,genres,categories"
+    );
+    let response = client
+        .get(url)
+        .send()
+        .await
+        .map_err(|error| format!("Could not fetch Steam Store metadata: {error}"))?;
+
+    if !response.status().is_success() {
+        return Ok(HashMap::new());
+    }
+
+    let details = match response.json::<HashMap<String, StoreAppDetails>>().await {
+        Ok(details) => details,
+        Err(_) => return Ok(HashMap::new()),
+    };
+    let mut metadata = HashMap::new();
+
+    for (app_id, details) in details {
+        let Ok(app_id) = app_id.parse::<u32>() else {
+            continue;
+        };
+
+        if let (true, Some(data)) = (details.success, details.data) {
+            metadata.insert(app_id, data);
+        }
+    }
+
+    Ok(metadata)
+}
+
+async fn fetch_review_summary(
+    client: &reqwest::Client,
+    app_id: u32,
+) -> Result<Option<AppReviewSummary>, String> {
+    let url = format!(
+        "https://store.steampowered.com/appreviews/{app_id}?json=1&filter=summary&language=all&purchase_type=all&num_per_page=0"
+    );
+    let response = client
+        .get(url)
+        .send()
+        .await
+        .map_err(|error| format!("Could not fetch Steam reviews for {app_id}: {error}"))?;
+
+    if !response.status().is_success() {
+        return Ok(None);
+    }
+
+    let reviews = response
+        .json::<AppReviewsResponse>()
+        .await
+        .map_err(|error| format!("Could not read Steam reviews for {app_id}: {error}"))?;
+
+    if reviews.success != 1 {
+        return Ok(None);
+    }
+
+    Ok(reviews.query_summary)
+}
+
+async fn fetch_store_tags(client: &reqwest::Client, app_id: u32) -> Result<Vec<String>, String> {
+    let url = format!("https://store.steampowered.com/app/{app_id}/");
+    let response = client
+        .get(url)
+        .send()
+        .await
+        .map_err(|error| format!("Could not fetch Steam tags for {app_id}: {error}"))?;
+
+    if !response.status().is_success() {
+        return Ok(Vec::new());
+    }
+
+    let html = response
+        .text()
+        .await
+        .map_err(|error| format!("Could not read Steam tags for {app_id}: {error}"))?;
+
+    Ok(parse_popular_tags(&html))
+}
+
+fn parse_popular_tags(html: &str) -> Vec<String> {
+    let Some(section_start) = html.find("popular_tags") else {
+        return Vec::new();
+    };
+    let section = &html[section_start..html.len().min(section_start + 12_000)];
+    let mut tags = Vec::new();
+    let mut remaining = section;
+
+    while let Some(link_start) = remaining.find("<a") {
+        remaining = &remaining[link_start..];
+        let Some(tag_start) = remaining.find('>') else {
+            break;
+        };
+        remaining = &remaining[tag_start + 1..];
+        let Some(tag_end) = remaining.find("</a>") else {
+            break;
+        };
+
+        let tag = decode_html_text(&strip_html_tags(&remaining[..tag_end]));
+
+        if !tag.is_empty()
+            && tag != "+"
+            && !tags.iter().any(|existing| existing == &tag)
+            && tags.len() < 20
+        {
+            tags.push(tag);
+        }
+
+        remaining = &remaining[tag_end + 4..];
+    }
+
+    tags
+}
+
+fn strip_html_tags(input: &str) -> String {
+    let mut output = String::new();
+    let mut in_tag = false;
+
+    for character in input.chars() {
+        match character {
+            '<' => in_tag = true,
+            '>' => in_tag = false,
+            _ if !in_tag => output.push(character),
+            _ => {}
+        }
+    }
+
+    output.trim().to_string()
+}
+
+fn decode_html_text(input: &str) -> String {
+    input
+        .replace("&amp;", "&")
+        .replace("&quot;", "\"")
+        .replace("&#39;", "'")
+        .replace("&lt;", "<")
+        .replace("&gt;", ">")
+        .split_whitespace()
+        .collect::<Vec<_>>()
+        .join(" ")
+}
+
+fn named_values_to_strings(values: Option<&Vec<StoreNamedValue>>) -> Vec<String> {
+    values
+        .map(|values| {
+            values
+                .iter()
+                .map(|value| value.description.clone())
+                .collect::<Vec<_>>()
+        })
+        .unwrap_or_default()
+}
+
+fn has_singleplayer(categories: &[String]) -> bool {
+    categories
+        .iter()
+        .any(|category| category.eq_ignore_ascii_case("Single-player"))
+}
+
+fn has_multiplayer(categories: &[String]) -> bool {
+    categories.iter().any(|category| {
+        let lower_category = category.to_ascii_lowercase();
+        lower_category.contains("multi-player")
+            || lower_category.contains("multiplayer")
+            || lower_category.contains("co-op")
+            || lower_category.contains("online pvp")
+            || lower_category.contains("lan pvp")
+    })
+}
+
+fn review_percent(summary: &AppReviewSummary) -> Option<u8> {
+    let total_reviews = summary.total_reviews?;
+
+    if total_reviews == 0 {
+        return None;
+    }
+
+    let percent = summary.total_positive? as f64 / total_reviews as f64 * 100.0;
+    Some(percent.round().clamp(0.0, 100.0) as u8)
+}
+
+fn build_enriched_reason(game: &Recommendation) -> String {
+    let reviews = game.review_summary.as_str();
+    let tags = if game.steam_tags.is_empty() {
+        "tags pending".to_string()
+    } else {
+        game.steam_tags
+            .iter()
+            .take(4)
+            .cloned()
+            .collect::<Vec<_>>()
+            .join(", ")
+    };
+
+    format!("Enriched from Steam metadata. {reviews}; {tags}.")
+}
+
+async fn resolve_steam_id(
+    client: &reqwest::Client,
+    profile: &str,
+    api_key: &str,
+) -> Result<String, String> {
+    let trimmed = profile.trim();
+
+    if trimmed.chars().all(|character| character.is_ascii_digit()) && trimmed.len() >= 16 {
+        return Ok(trimmed.to_string());
+    }
+
+    if let Some(profile_id) = extract_after_path_segment(trimmed, "profiles") {
+        if profile_id
+            .chars()
+            .all(|character| character.is_ascii_digit())
+        {
+            return Ok(profile_id);
+        }
+    }
+
+    let vanity = extract_after_path_segment(trimmed, "id").unwrap_or_else(|| trimmed.to_string());
+    let url = format!(
+        "https://api.steampowered.com/ISteamUser/ResolveVanityURL/v0001/?key={api_key}&vanityurl={vanity}"
+    );
+
+    let response = client
+        .get(url)
+        .send()
+        .await
+        .map_err(|error| format!("Could not resolve Steam vanity URL: {error}"))?;
+
+    if !response.status().is_success() {
+        return Err(format!(
+            "Steam vanity resolution failed with HTTP {}.",
+            response.status()
+        ));
+    }
+
+    let payload = response
+        .json::<ResolveVanityResponse>()
+        .await
+        .map_err(|error| format!("Could not read Steam vanity response: {error}"))?;
+
+    if payload.response.success != 1 {
+        return Err(payload
+            .response
+            .message
+            .unwrap_or_else(|| "Could not resolve that Steam profile.".to_string()));
+    }
+
+    payload
+        .response
+        .steamid
+        .ok_or_else(|| "Steam did not return a Steam ID for that profile.".to_string())
+}
+
+fn open_database(app: &tauri::AppHandle) -> Result<rusqlite::Connection, String> {
+    let app_data_dir = app
+        .path()
+        .app_data_dir()
+        .map_err(|error| format!("Could not resolve app data directory: {error}"))?;
+
+    fs::create_dir_all(&app_data_dir)
+        .map_err(|error| format!("Could not create app data directory: {error}"))?;
+
+    let database_path: PathBuf = app_data_dir.join("steam-backlog-helper.sqlite3");
+    rusqlite::Connection::open(database_path)
+        .map_err(|error| format!("Could not open settings database: {error}"))
+}
+
+fn read_setting(connection: &rusqlite::Connection, key: &str) -> Result<String, String> {
+    match connection.query_row(
+        "SELECT value FROM app_settings WHERE key = ?1",
+        [key],
+        |row| row.get::<_, String>(0),
+    ) {
+        Ok(value) => Ok(value),
+        Err(rusqlite::Error::QueryReturnedNoRows) => Ok(String::new()),
+        Err(error) => Err(format!("Could not read setting {key}: {error}")),
+    }
+}
+
+fn read_setting_with_default(
+    connection: &rusqlite::Connection,
+    key: &str,
+    default_value: &str,
+) -> Result<String, String> {
+    let value = read_setting(connection, key)?;
+
+    if value.is_empty() {
+        Ok(default_value.to_string())
+    } else {
+        Ok(value)
+    }
+}
+
+fn read_bool_setting(
+    connection: &rusqlite::Connection,
+    key: &str,
+    default_value: bool,
+) -> Result<bool, String> {
+    let value = read_setting(connection, key)?;
+
+    if value.is_empty() {
+        Ok(default_value)
+    } else {
+        Ok(value == "true")
+    }
+}
+
+fn extract_after_path_segment(input: &str, segment: &str) -> Option<String> {
+    let marker = format!("/{segment}/");
+    let start = input.find(&marker)? + marker.len();
+    let value = input[start..]
+        .split(['/', '?', '#'])
+        .next()
+        .unwrap_or("")
+        .trim();
+
+    if value.is_empty() {
+        None
+    } else {
+        Some(value.to_string())
+    }
+}
+
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+    tauri::Builder::default()
+        .plugin(tauri_plugin_opener::init())
+        .invoke_handler(tauri::generate_handler![
+            app_name,
+            enrich_steam_metadata,
+            import_steam_library,
+            load_setup_settings,
+            open_debug_window,
+            save_setup_settings
+        ])
+        .run(tauri::generate_context!())
+        .expect("error while running Steam Backlog Helper");
+}

src-tauri/src/main.rs

@@ -0,0 +1,5 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    backlog_helper_lib::run()
+}

src-tauri/tauri.conf.json

@@ -0,0 +1,34 @@
+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "productName": "Steam Backlog Helper",
+  "version": "0.1.0",
+  "identifier": "com.boris.backloghelper",
+  "build": {
+    "beforeDevCommand": "npm run dev",
+    "devUrl": "http://localhost:1420",
+    "beforeBuildCommand": "npm run build",
+    "frontendDist": "../build"
+  },
+  "app": {
+    "windows": [
+      {
+        "title": "Steam Backlog Helper",
+        "width": 1200,
+        "height": 820,
+        "minWidth": 960,
+        "minHeight": 640,
+        "resizable": true
+      }
+    ],
+    "security": {
+      "csp": null
+    }
+  },
+  "bundle": {
+    "active": true,
+    "targets": ["appimage", "dmg", "msi", "nsis"],
+    "category": "Utility",
+    "shortDescription": "Pick the next Steam backlog game to play.",
+    "longDescription": "Steam Backlog Helper helps users choose what to play next from a large Steam library."
+  }
+}