From 9bfda194d73aa01ca34925f0dd40df281fd9d993 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 28 Nov 2021 18:59:40 +0100
Subject: Implement Profile type for publishing profile(s)

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 src/main.rs    |  1 +
 src/profile.rs | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)
 create mode 100644 src/profile.rs

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index a672ae0..51408f5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,6 +8,7 @@ pub mod client;
 pub mod config;
 pub mod consts;
 pub mod ipfs_client;
+pub mod profile;
 pub mod types;
 
 #[tokio::main]
diff --git a/src/profile.rs b/src/profile.rs
new file mode 100644
index 0000000..b78dfc1
--- /dev/null
+++ b/src/profile.rs
@@ -0,0 +1,99 @@
+use std::path::PathBuf;
+
+use anyhow::Result;
+use ipfs_api_backend_hyper::IpfsApi;
+use tokio::io::AsyncWriteExt;
+use tokio::io::AsyncReadExt;
+
+use crate::client::Client;
+use crate::cid::Cid;
+
+#[derive(Debug, serde::Serialize, serde::Deserialize)]
+pub struct Profile {
+    key_name: String,
+    key_id: String,
+}
+
+impl Profile {
+    pub async fn create(name: &str, client: &Client) -> Result<Self> {
+        let key = client.ipfs.key_gen(name, ipfs_api_backend_hyper::KeyType::Ed25519, 64).await?;
+
+        Ok(Profile {
+            key_name: key.name,
+            key_id: key.id
+        })
+    }
+
+    pub fn config_path(name: &str) -> String {
+        format!("distrox-{}", name)
+    }
+
+    pub fn config_file_path(name: &str) -> Result<PathBuf> {
+        xdg::BaseDirectories::with_prefix("distrox")
+            .map_err(anyhow::Error::from)
+            .and_then(|dirs| {
+                let name = Self::config_path(name);
+                dirs.place_config_file(name)
+                    .map_err(anyhow::Error::from)
+            })
+    }
+
+    /// Store the Profile on disk
+    pub async fn write_to_filesystem(&self) -> Result<()> {
+        let config_path = Self::config_file_path(&self.key_name)?;
+
+        let mut config_file = tokio::fs::OpenOptions::new()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(config_path)
+            .await?;
+
+        let config = serde_json::to_string(&self)?;
+        config_file.write_all(config.as_bytes()).await?;
+        config_file.sync_all().await?;
+        Ok(())
+    }
+
+    /// Load the Profile from disk and ensure the keys exist in IPFS
+    pub async fn load_from_filesystem(name: &str, client: &Client) -> Result<Option<Self>> {
+        let config_path = Self::config_file_path(name)?;
+        let file_reader = tokio::fs::OpenOptions::new()
+            .read(true)
+            .open(config_path)
+            .await
+            .map(tokio::io::BufReader::new)?;
+
+        Self::load_from_reader(file_reader, name, client).await
+    }
+
+    async fn load_from_reader<R: AsyncReadExt + std::marker::Unpin>(mut r: R, name: &str, client: &Client) -> Result<Option<Self>> {
+        let mut buf = String::new();
+        let _ = r.read_to_string(&mut buf).await?;
+        let config: Self = serde_json::from_str(&buf)?;
+
+        client.ipfs
+            .key_list()
+            .await?
+            .keys
+            .into_iter()
+            .find(|keypair| keypair.name == name)
+            .map(|_| Ok(config))
+            .transpose()
+    }
+
+    pub async fn publish(&self, client: &Client, cid: Cid) -> Result<()> {
+        let path = format!("/ipfs/{}", cid.as_ref());
+        let resolve = true;
+        let lifetime = Some("10m");
+        let ttl = None;
+
+        let publish_response = client.ipfs
+            .name_publish(&path, resolve, lifetime, ttl, Some(&self.key_name))
+            .await?;
+
+        log::debug!("Publish response = {{ name: {}, value: {} }}", publish_response.name, publish_response.value);
+        Ok(())
+    }
+
+}
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