Added the start of the db create

Need to do insert (obv), recall, search by name (get the whole name column), and
then display nicely.

Also renamed / used more correctly the "data" folder. I should use cache for
the downloaded .json file from scryfall though

scryfall_deser/src/db.rs

@@ -1,34 +1,75 @@
 use dir_spec::Dir;
 use sqlite;
 use std::fs;
+use std::path::PathBuf;
 
-const CACHE_FOLDER: &str = "scryfall_cache";
+const DATA_FOLDER: &str = "scryfall";
+const SQLITE_FILENAME: &str = "scryfall_db.sqlite3";
 
-// NOTE: this should be idempotent
-pub fn create_cache_folder() {
-    let cache_folder = Dir::cache_home();
+fn get_local_data_folder() -> PathBuf {
+    let cache_folder = Dir::data_home();
     match cache_folder {
         None => {
             panic!("Can't find a cache folder - really don't know what the problem is sorry");
         }
         Some(mut f) => {
-            f.push(CACHE_FOLDER);
-            let ret = fs::create_dir(&f);
-            match ret {
-                Ok(_) => (),
-                Err(_e) => {
-                    let err_string = format!(
-                        "Couldn't create folder within your cache folder: {}",
-                        f.display()
-                    );
-                    panic!("{}", err_string);
-                }
-            }
+            f.push(DATA_FOLDER);
+            f
         }
     }
 }
 
+fn get_local_data_sqlite_file() -> PathBuf {
+    let mut folder = get_local_data_folder();
+    folder.push(SQLITE_FILENAME);
+    folder
+}
+
+// NOTE: this should be idempotent - creating a dir always is... right?
+pub fn create_cache_folder() {
+    let f = get_local_data_folder();
+    let ret = fs::create_dir(&f);
+    match ret {
+        Ok(_) => (),
+        Err(e) => {
+            if e.raw_os_error().unwrap() == 17 {
+                // This is folder already exists - which is fine for us
+                // TODO probably should use e.kind() for better readability
+                return;
+            }
+            panic!(
+                "Couldn't create folder within your cache folder: {}. Error is {}",
+                f.display(),
+                e
+            );
+        }
+    }
+}
+
+fn create_db_sql() -> String {
+    "
+CREATE TABLE cards (
+    name TEXT NOT NULL UNIQUE,
+    type_line TEXT,
+    oracle_text TEXT,
+    power_toughness TEXT,
+    loyalty INTEGER,
+    legalities TEXT,
+    mana_cost TEXT,
+    scryfall_uri TEXT NOT NULL UNIQUE
+);"
+    .to_string()
+}
+
+// Will delete your current db
 pub fn init_db() -> bool {
     create_cache_folder();
+    let sqlite_file = get_local_data_sqlite_file();
+    println!("sqlite file location: {}", sqlite_file.display());
+    let _res = fs::remove_file(&sqlite_file);
+    // TODO actually check result for whether it was a permissions thing or something
+    let connection = sqlite::open(sqlite_file).unwrap();
+    let init_query = create_db_sql();
+    connection.execute(init_query).unwrap();
     true
 }

scryfall_deser/src/main.rs

@@ -1,4 +1,5 @@
 use clap::Parser;
+use scryfall_deser::init_db;
 
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
@@ -19,4 +20,6 @@ fn main() {
     }
     let search_string = card_name.join(" ");
     dbg!(search_string);
+
+    init_db();
 }