From 633af20799fb3beaf4841d02abe9efb2e90f7cef Mon Sep 17 00:00:00 2001
From: Morten Olsen <morten+pgp@olsen.pro>
Date: Mon, 8 Nov 2021 11:39:02 +0100
Subject: [PATCH] updates

---
 README.md                     | 33 ++++++++++++++++++++++
 lua/share/init.lua            | 28 ++++++++++++++++--
 lua/share/providers/slack.lua | 53 +++++++++++++++++++++++++++++++++--
 3 files changed, 109 insertions(+), 5 deletions(-)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1da3857
--- /dev/null
+++ b/README.md
@@ -0,0 +1,33 @@
+# share.nvim
+
+## Setup
+
+```lua
+use({
+  "morten-olsen/share.nvim",
+  requires = {
+    {'nvim-lua/plenary.nvim'},
+    {'nvim-telescope/telescope.nvim'}
+  },
+  config = function()
+    local share = require("share")
+    local slack = require("share.providers.slack")
+    share.config({
+      providers = {
+        my_slack = slack("your-slack-token")
+      }
+    })
+  end
+})
+```
+
+## Usage
+
+```vim
+" share as markdown
+vnoremap <Leader>ss :!lua require("share").share("my_slack")
+
+" share as code block 
+vnoremap <Leader>ssm :!lua require("share").share("my_slack", { format: "code" })
+
+```
diff --git a/lua/share/init.lua b/lua/share/init.lua
index de8203e..014e917 100644
--- a/lua/share/init.lua
+++ b/lua/share/init.lua
@@ -1,6 +1,7 @@
 local pickers = require "telescope.pickers"
 local finders = require "telescope.finders"
 local actions = require "telescope.actions"
+local previewers = require "telescope.previewers"
 local action_state = require "telescope.actions.state"
 local conf = require("telescope.config").values
 
@@ -24,8 +25,15 @@ end
 
 M.share = function(provider_name, opts)
   local content = get_visual_selection()
+  local type = vim.api.nvim_buf_get_option(0, "filetype")
+  if content == "" then
+    error("No content selected")
+  end
   local provider = providers[provider_name]
-  local users = provider.fetch_users(opts)
+  if provider == nil then
+    error("Provider " .. provider_name .. " not found")
+  end
+  local users = provider.fetch_recipients(opts)
   pickers.new(nil, {
     prompt_title = "Users",
     finder = finders.new_table {
@@ -33,8 +41,8 @@ M.share = function(provider_name, opts)
       entry_maker = function(entry)
         return {
           value = entry,
-          display = entry.real_name or entry.name,
-          ordinal= entry.real_name or entry.name,
+          display = entry.name,
+          ordinal= entry.name,
         }
       end
     },
@@ -47,6 +55,20 @@ M.share = function(provider_name, opts)
       end)
       return true
     end,
+    previewer = previewers.new_buffer_previewer({
+      title = "snippet",
+      define_preview = function(self, entry, status)
+        local lines = {}
+        for k in content:gmatch("([^\n]*)\n?") do
+          table.insert(lines, k)
+        end
+        vim.api.nvim_buf_set_option(self.state.bufnr, "filetype", type)
+        for row,display in pairs(lines) do
+          vim.api.nvim_buf_set_lines(self.state.bufnr, row, row + 1, false, { display })
+        end
+
+      end
+    }),
   }):find()
 
 end
diff --git a/lua/share/providers/slack.lua b/lua/share/providers/slack.lua
index 2683fb6..c44c439 100644
--- a/lua/share/providers/slack.lua
+++ b/lua/share/providers/slack.lua
@@ -1,10 +1,24 @@
 local curl = require "plenary.curl"
 
+local function merge_lists(t1, t2)
+  local result = {}
+  table.foreach(t1, function(_, v) table.insert(result, v) end)
+  table.foreach(t2, function(_, v) table.insert(result, v) end)
+  return result
+end
+
+local function test_http_response(res)
+  local body = vim.fn.json_decode(res.body)
+  if body.error then
+    error("Slack error " .. body.error)
+  end
+end
+
 local M = function(slack_token)
   local token = slack_token
   local function post(receiver, content, opts)
     local text = content
-    if opts.format == "markdown" then
+    if opts.format == "code" then
       text = "```\n" .. text .. "```"
     end
     local body = {
@@ -19,6 +33,27 @@ local M = function(slack_token)
         content_type = "application/json"
       }
     })
+    test_http_response(res)
+  end
+
+  local function fetch_channels()
+    local query = {
+      types = "public_channel,private_channel",
+      exclude_archived = "true",
+      limit = "1000",
+    }
+    local res = curl.get("https://slack.com/api/conversations.list", {
+      query = query,
+      headers = {
+        Authorization = "Bearer " .. token
+      }
+    })
+    test_http_response(res)
+    local channels = vim.fn.json_decode(res.body).channels
+    table.foreach(channels, function(_, k)
+      k.name = "# " .. k.name
+    end)
+    return channels
   end
 
   local function fetch_users()
@@ -27,12 +62,26 @@ local M = function(slack_token)
         Authorization = "Bearer " .. token
       }
     })
+    test_http_response(res)
     local users = vim.fn.json_decode(res.body).members
+    table.foreach(users, function(_, k)
+      local name = k.real_name or k.name
+      if k.real_name then
+        name = name .. " (" .. k.name .. ")"
+      end
+      k.name = "@ " .. name
+    end)
     return users
   end
 
+  local function fetch_recipients()
+    local users = fetch_users()
+    local channels = fetch_channels()
+    return merge_lists(users, channels)
+  end
+
   return {
-    fetch_users = fetch_users,
+    fetch_recipients = fetch_recipients,
     post = post,
   }
 end