db: allow listing database contents as JSON

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I6a6a6964a756588168f476d984d18f9e8d65bc4e

Cargo.lock

@@ -192,6 +192,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "bitflags"
 version = "2.9.1"
@@ -520,6 +526,12 @@ version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
 
+[[package]]
+name = "itoa"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+
 [[package]]
 name = "jiff"
 version = "0.2.15"
@@ -857,6 +869,12 @@ dependencies = [
  "windows-sys 0.60.2",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
+
 [[package]]
 name = "serde"
 version = "1.0.219"
@@ -877,6 +895,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.142"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "030fedb782600dcbd6f02d479bf0d817ac3bb40d644745b769d6a96bc3afc5a7"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "shlex"
 version = "1.3.0"
@@ -925,6 +955,7 @@ dependencies = [
 name = "stash"
 version = "0.2.0"
 dependencies = [
+ "base64",
  "clap",
  "clap-verbosity-flag",
  "dirs",
@@ -934,6 +965,7 @@ dependencies = [
  "rmp-serde",
  "rusqlite",
  "serde",
+ "serde_json",
  "smol",
  "thiserror",
  "wl-clipboard-rs",

Cargo.toml

@@ -21,6 +21,8 @@ thiserror = "2.0.14"
 wl-clipboard-rs = "0.9.2"
 rusqlite = { version = "0.37.0", features = ["bundled"] }
 smol = "2.0.2"
+serde_json = "1.0.142"
+base64 = "0.22.1"
 
 
 [profile.release]

src/db/mod.rs

@@ -9,6 +9,10 @@ use rusqlite::{Connection, OptionalExtension, params};
 use serde::{Deserialize, Serialize};
 use thiserror::Error;
 
+use base64::Engine;
+use base64::engine::general_purpose::STANDARD;
+use serde_json::json;
+
 #[derive(Error, Debug)]
 pub enum StashError {
     #[error("Input is empty or too large, skipping store.")]
@@ -103,6 +107,49 @@ impl SqliteClipboardDb {
     }
 }
 
+impl SqliteClipboardDb {
+    pub fn list_json(&self) -> Result<String, StashError> {
+        let mut stmt = self
+            .conn
+            .prepare("SELECT id, contents, mime FROM clipboard ORDER BY id DESC")
+            .map_err(|e| StashError::ListDecode(e.to_string()))?;
+        let mut rows = stmt
+            .query([])
+            .map_err(|e| StashError::ListDecode(e.to_string()))?;
+
+        let mut entries = Vec::new();
+
+        while let Some(row) = rows
+            .next()
+            .map_err(|e| StashError::ListDecode(e.to_string()))?
+        {
+            let id: u64 = row
+                .get(0)
+                .map_err(|e| StashError::ListDecode(e.to_string()))?;
+            let contents: Vec<u8> = row
+                .get(1)
+                .map_err(|e| StashError::ListDecode(e.to_string()))?;
+            let mime: Option<String> = row
+                .get(2)
+                .map_err(|e| StashError::ListDecode(e.to_string()))?;
+            let contents_str = match mime.as_deref() {
+                Some(m) if m.starts_with("text/") || m == "application/json" => {
+                    String::from_utf8_lossy(&contents).to_string()
+                }
+                _ => STANDARD.encode(&contents),
+            };
+            entries.push(json!({
+                "id": id,
+                "contents": contents_str,
+                "mime": mime,
+            }));
+        }
+
+        Ok(serde_json::to_string_pretty(&entries)
+            .map_err(|e| StashError::ListDecode(e.to_string()))?)
+    }
+}
+
 impl ClipboardDb for SqliteClipboardDb {
     fn store_entry(
         &self,