zetviel/src/root.zig

279 lines
9.7 KiB
Zig

const std = @import("std");
const notmuch = @import("notmuch.zig");
// Thread representation for JSON serialization
pub const Thread = struct {
allocator: std.mem.Allocator,
thread: *notmuch.Db.Thread,
pub fn init(allocator: std.mem.Allocator, t: *notmuch.Db.Thread) Thread {
return .{ .allocator = allocator, .thread = t };
}
pub fn deinit(self: Thread) void {
self.allocator.destroy(self.thread);
}
pub fn jsonStringify(self: Thread, jws: anytype) !void {
// Format we're looking for on api/thread/<threadid>
//[
// {
// "from": "The Washington Post <email@washingtonpost.com>",
// "to": "elerch@lerch.org",
// "cc": null,
// "bcc": null,
// "date": "Sun, 21 Jul 2024 19:23:38 +0000",
// "subject": "Biden steps aside",
// "content": "...content...",
// "content_type": "text/html",
// "attachments": [],
// "message_id": "01010190d6bfe4e1-185e2720-e415-4086-8865-9604cde886c2-000000@us-west-2.amazonses.com"
// }
//]
try jws.beginArray();
var mi = self.thread.getMessages() catch return error.OutOfMemory;
while (mi.next()) |m| {
try jws.beginObject();
try jws.objectField("from");
try jws.write(m.getHeader("from") catch return error.OutOfMemory);
try jws.objectField("to");
try jws.write(m.getHeader("to") catch return error.OutOfMemory);
try jws.objectField("cc");
try jws.write(m.getHeader("cc") catch return error.OutOfMemory);
try jws.objectField("bcc");
try jws.write(m.getHeader("bcc") catch return error.OutOfMemory);
try jws.objectField("date");
try jws.write(m.getHeader("date") catch return error.OutOfMemory);
try jws.objectField("subject");
try jws.write(m.getHeader("subject") catch return error.OutOfMemory);
// content, content-type, and attachments are all based on the file itself
try jws.objectField("content");
try jws.write(m.getFilename()); // TODO: Parse file
try jws.objectField("content-type");
try jws.write(m.getHeader("Content-Type") catch return error.OutOfMemory);
try jws.objectField("message_id");
try jws.write(m.getMessageId());
try jws.endObject();
}
try jws.endArray();
}
};
// Threads collection for JSON serialization
pub const Threads = struct {
allocator: std.mem.Allocator,
iterator: *notmuch.Db.ThreadIterator,
pub fn init(allocator: std.mem.Allocator, it: *notmuch.Db.ThreadIterator) Threads {
return .{
.allocator = allocator,
.iterator = it,
};
}
pub fn deinit(self: *Threads) void {
self.iterator.deinit();
self.allocator.destroy(self.iterator);
}
pub fn next(self: *Threads) !?Thread {
const nxt = self.iterator.next();
if (nxt) |_| {
const tptr = try self.allocator.create(notmuch.Db.Thread);
tptr.* = nxt.?;
return Thread.init(self.allocator, tptr);
}
return null;
}
pub fn jsonStringify(self: Threads, jws: anytype) !void {
// This is the json we're looking to match on api/query/<term>
// [
// {
// "authors": "The Washington Post",
// "matched_messages": 1,
// "newest_date": 1721664948,
// "oldest_date": 1721664948,
// "subject": "Biden is out. What now?",
// "tags": [
// "inbox",
// "unread"
// ],
// "thread_id": "0000000000031723",
// "total_messages": 1
// },
// {
// "authors": "The Washington Post",
// "matched_messages": 1,
// "newest_date": 1721603115,
// "oldest_date": 1721603115,
// "subject": "Upcoming Virtual Programs",
// "tags": [
// "inbox",
// "unread"
// ],
// "thread_id": "0000000000031712",
// "total_messages": 1
// },
// {
// "authors": "The Washington Post",
// "matched_messages": 1,
// "newest_date": 1721590157,
// "oldest_date": 1721590157,
// "subject": "Biden Steps Aside",
// "tags": [
// "inbox"
// ],
// "thread_id": "000000000003170d",
// "total_messages": 1
// }
// ]
try jws.beginArray();
while (self.iterator.next()) |t| {
defer t.deinit();
try jws.beginObject();
try jws.objectField("authors");
try jws.write(t.getAuthors());
try jws.objectField("matched_messages");
try jws.write(t.getMatchedMessages());
try jws.objectField("newest_date");
try jws.write(t.getNewestDate());
try jws.objectField("oldest_date");
try jws.write(t.getOldestDate());
try jws.objectField("subject");
try jws.write(t.getSubject());
try jws.objectField("tags");
var tags = t.getTags() catch return error.OutOfMemory;
try tags.jsonStringify(jws);
try jws.objectField("thread_id");
try jws.write(t.getThreadId());
try jws.objectField("total_messages");
try jws.write(t.getTotalMessages());
try jws.endObject();
}
try jws.endArray();
}
};
// Helper function to open a notmuch database from the current directory
pub const NotmuchDb = struct {
db: notmuch.Db,
path: [:0]u8,
allocator: std.mem.Allocator,
pub fn close(self: *NotmuchDb) void {
self.db.close();
self.db.deinit();
self.allocator.free(self.path);
}
pub fn search(self: *NotmuchDb, query: []const u8) !Threads {
var query_buf: [1024:0]u8 = undefined;
const query_z = try std.fmt.bufPrintZ(&query_buf, "{s}", .{query});
const ti = try self.allocator.create(notmuch.Db.ThreadIterator);
ti.* = try self.db.searchThreads(query_z);
return Threads.init(self.allocator, ti);
}
pub fn getThread(self: *NotmuchDb, thread_id: []const u8) !Thread {
var query_buf: [1024:0]u8 = undefined;
const query_z = try std.fmt.bufPrintZ(&query_buf, "thread:{s}", .{thread_id});
var thread_iter = try self.db.searchThreads(query_z);
defer thread_iter.deinit();
const thread = thread_iter.next();
if (thread) |t| {
const tptr = try self.allocator.create(notmuch.Db.Thread);
tptr.* = t;
return Thread.init(self.allocator, tptr);
}
return error.ThreadNotFound;
}
};
pub fn openNotmuchDb(allocator: std.mem.Allocator, relative_path: []const u8) !NotmuchDb {
var cwd_buf: [std.fs.max_path_bytes]u8 = undefined;
const cwd = try std.fs.cwd().realpath(".", cwd_buf[0..]);
const db_path = try std.fs.path.joinZ(allocator, &[_][]const u8{ cwd, relative_path });
const db = try notmuch.Db.open(db_path, null);
return .{
.db = db,
.path = db_path,
.allocator = allocator,
};
}
test "ensure all references are observed" {
std.testing.refAllDeclsRecursive(@This());
}
test "open database with public api" {
const allocator = std.testing.allocator;
var db = try openNotmuchDb(allocator, "mail");
defer db.close();
}
test "can stringify general queries" {
const allocator = std.testing.allocator;
// const db_path = try std.fs.path.join(
// allocator,
// std.fs.cwd(),
// "mail",
// );
var db = try openNotmuchDb(allocator, "mail");
defer db.close();
var threads = try db.search("Tablets");
defer threads.deinit();
const actual = try std.json.stringifyAlloc(allocator, threads, .{ .whitespace = .indent_2 });
defer allocator.free(actual);
try std.testing.expectEqualStrings(
\\[
\\ {
\\ "authors": "Top Medications",
\\ "matched_messages": 1,
\\ "newest_date": 1721484138,
\\ "oldest_date": 1721484138,
\\ "subject": "***SPAM*** Tablets without a prescription",
\\ "tags": [
\\ "inbox"
\\ ],
\\ "thread_id": "0000000000000001",
\\ "total_messages": 1
\\ }
\\]
, actual);
}
test "can stringify specific threads" {
const allocator = std.testing.allocator;
var db = try openNotmuchDb(allocator, "mail");
defer db.close();
var threads = try db.search("Tablets");
defer threads.deinit();
var maybe_first_thread = try threads.next();
defer if (maybe_first_thread) |*t| t.deinit();
try std.testing.expect(maybe_first_thread != null);
const first_thread = maybe_first_thread.?;
const actual = try std.json.stringifyAlloc(allocator, first_thread, .{ .whitespace = .indent_2 });
defer allocator.free(actual);
try std.testing.expectEqualStrings(
\\[
\\ {
\\ "from": "Top Medications <mail@youpharm.co>",
\\ "to": "emil@lerch.org",
\\ "cc": null,
\\ "bcc": null,
\\ "date": "Sat, 20 Jul 2024 16:02:18 +0200",
\\ "subject": "***SPAM*** Tablets without a prescription",
\\ "content": "...content...",
\\ "content_type": "text/html",
\\ "attachments": [],
\\ "message_id": "01010190d6bfe4e1-185e2720-e415-4086-8865-9604cde886c2-000000@us-west-2.amazonses.com"
\\ }
\\]
, actual);
}