feat: insert & open obsidian excalidraw drawings

lua/typstar/config.lua

@@ -0,0 +1,21 @@
+local M = {}
+
+local default_config = {
+    typstarRoot = '~/typstar',
+    excalidraw = {
+        assetsDir = 'assets',
+        filename = 'drawing-%Y-%m-%d-%H-%M-%S',
+        fileExtensionInserted = '.excalidraw.svg',
+        obsidianOpenConfig = nil,
+    }
+}
+
+function M.merge_config(args)
+    M.config = vim.tbl_deep_extend('force', default_config, args or {})
+    M.config.excalidraw.obsidianOpenConfig = M.config.excalidraw.obsidianOpenConfig or
+        M.config.typstarRoot .. '/res/obsidian_open_config_example.json'
+end
+
+M.merge_config(nil)
+
+return M

lua/typstar/excalidraw.lua

@@ -0,0 +1,41 @@
+local M = {}
+local config = require('typstar.config')
+local utils = require('typstar.utils')
+
+
+local cfg = config.config.excalidraw
+local affix = [[
+#figure(
+    image("%s"),
+)
+]]
+
+local function launch_obsidian_open(path)
+    print(string.format('Opening %s in Excalidraw', path))
+    utils.run_shell_command('python3 ' ..
+        config.config.typstarRoot .. '/python/obsidian_open.py ' ..
+        path .. ' --config ' .. cfg.obsidianOpenConfig)
+end
+
+
+function M.insert_drawing()
+    local assets_dir = vim.fn.expand('%:p:h') .. '/' .. cfg.assetsDir
+    if vim.fn.isdirectory(assets_dir) == 0 then
+        vim.fn.mkdir(assets_dir, 'p')
+    end
+    local filename = os.date(cfg.filename)
+    local path = assets_dir .. '/' .. filename .. '.excalidraw.md'
+    local path_inserted = cfg.assetsDir .. '/' .. filename .. cfg.fileExtensionInserted
+    utils.insert_snippet(string.format(affix, path_inserted))
+    launch_obsidian_open(path)
+end
+
+function M.open_drawing()
+    local line = vim.api.nvim_get_current_line()
+    local path = vim.fn.expand('%:p:h') ..
+        '/' .. string.match(line, 'image%("(.*)' .. string.gsub(cfg.fileExtensionInserted, '%.', '%%%.')) ..
+        '.excalidraw.md'
+    launch_obsidian_open(path)
+end
+
+return M

lua/typstar/init.lua

@@ -1,12 +1,13 @@
 local M = {}
 
-local default_config = {
-}
+local config = require('typstar.config')
+local excalidraw = require('typstar.excalidraw')
 
-M.config = default_config
+vim.api.nvim_create_user_command('TypstarInsertExcalidraw', excalidraw.insert_drawing, {})
+vim.api.nvim_create_user_command('TypstarOpenExcalidraw', excalidraw.open_drawing, {})
 
 M.setup = function(args)
-    M.config = vim.tbl_deep_extend("force", M.config, args or {})
+    config.merge_config(args)
 end
 
 return M

lua/typstar/utils.lua

@@ -0,0 +1,16 @@
+local M = {}
+
+function M.insert_snippet(snip)
+    local line_num = vim.fn.getcurpos()[2]
+    local lines = {}
+    for line in snip:gmatch '[^\r\n]+' do
+        table.insert(lines, line)
+    end
+    vim.api.nvim_buf_set_lines(0, line_num, line_num, false, lines)
+end
+
+function M.run_shell_command(cmd)
+    vim.fn.jobstart(cmd)
+end
+
+return M