add crude previewer

lua/octo/gh/graphql.lua

@@ -2179,6 +2179,7 @@ query($endCursor: String) {
         title
         url
         closed
+        isAnswered
         repository { nameWithOwner }
       }
       pageInfo {
@@ -2190,6 +2191,62 @@ query($endCursor: String) {
 }
 ]]
 
+M.discussion_query = [[
+query($endCursor: String) {
+    repository(owner: "%s", name: "%s") {
+        discussion(number: %d) {
+            id
+            number
+            title
+            body
+            createdAt
+            closedAt
+            url
+            repository { nameWithOwner }
+            author { login }
+            labels(first: 20) {
+                nodes {
+                    color
+                    name
+                }
+            }
+            comments(first: 100, after: $endCursor) {
+                nodes {
+                    id
+                    body
+                    createdAt
+                    lastEditedAt
+                    reactionGroups {
+                        content
+                        viewerHasReacted
+                        users {
+                            totalCount
+                        }
+                    }
+                    author {
+                        login
+                    }
+                    viewerDidAuthor
+                    viewerCanUpdate
+                    viewerCanDelete
+                    replies(first: 10) {
+                        totalCount
+                        nodes {
+                            body
+                            author { login }
+                        }
+                    }
+                }
+                pageInfo {
+                    hasNextPage
+                    endCursor
+                }
+            }
+        }
+    }
+}
+]]
+
 -- https://docs.github.com/en/graphql/reference/objects#project
 M.projects_query = [[
 query {

lua/octo/pickers/telescope/entry_maker.lua

@@ -10,6 +10,8 @@ local M = {}
 --- @field state string
 --- @field isDraft boolean
 --- @field stateReason string
+--- @field isAnswered boolean
+--- @field closed boolean
 
 --- @class Entry
 --- @field kind string
@@ -35,7 +37,8 @@ local icons = {
   },
   discussion = {
     open = { " ", "OctoGrey" },
-    closed = { " ", "OctoGreen" },
+    answered = { " ", "OctoGreen" },
+    closed = { " ", "OctoRed" },
   },
   unknown = { " " },
 }
@@ -71,11 +74,14 @@ local function get_icon(entry)
       return icons.pull_request.open
     end
   elseif kind == "discussion" then
-    local state = entry.obj.state
+    local closed = entry.obj.closed
+    local isAnswered = entry.obj.isAnswered
 
-    if state == "OPENED" then
+    if not closed then
       return icons.discussion.open
-    elseif state == "CLOSED" then
+    elseif isAnswered then
+      return icons.discussion.answered
+    else
       return icons.discussion.closed
     end
   end
@@ -89,16 +95,9 @@ function M.gen_from_discussions(max_number)
       return nil
     end
 
-    local icon
-    if entry.obj.closed then
-      icon = icons.discussion.closed
-    else
-      icon = icons.discussion.open
-    end
-
     local columns = {
       { entry.value, "TelescopeResultsNumber" },
-      icon,
+      get_icon(entry),
       { entry.obj.title },
     }
     local layout = {

lua/octo/pickers/telescope/previewers.lua

@@ -8,11 +8,41 @@ local pv_utils = require "telescope.previewers.utils"
 local ts_utils = require "telescope.utils"
 local defaulter = ts_utils.make_default_callable
 
+local vim = vim
+
 local discussion = defaulter(function(opts)
   return previewers.new_buffer_previewer {
     title = opts.preview_title,
+    get_buffer_by_name = function(_, entry)
+      return entry.value
+    end,
     define_preview = function(self, entry)
-      return self.state.bufnr, self.state.bufname
+      local bufnr = self.state.bufnr
+
+      if self.state.bufname == entry.value and vim.api.nvim_buf_line_count(bufnr) ~= 1 then
+        return
+      end
+
+      local number = entry.value
+      local owner, name = utils.split_repo(entry.repo)
+      local query = graphql("discussion_query", owner, name, number)
+
+      gh.run {
+        args = { "api", "graphql", "-f", string.format("query=%s", query) },
+        cb = function(output, stderr)
+          if stderr and not utils.is_blank(stderr) then
+            vim.api.nvim_err_writeln(stderr)
+          elseif output and vim.api.nvim_buf_is_valid(bufnr) then
+            local result = vim.fn.json_decode(output)
+            local obj = result.data.repository.discussion
+
+            writers.write_title(bufnr, tostring(obj.title), 1)
+            writers.write_body(bufnr, obj)
+
+            vim.api.nvim_buf_set_option(bufnr, "filetype", "octo")
+          end
+        end,
+      }
     end,
   }
 end)

lua/octo/pickers/telescope/provider.lua

@@ -1164,6 +1164,8 @@ function M.discussions(opts)
         opts.cb(selected, prompt_bufnr, type)
       end
 
+      opts.preview_title = opts.preview_title or ""
+
       pickers
         .new(opts, {
           finder = finders.new_table {

lua/octo/ui/writers.lua

@@ -176,6 +176,8 @@ function M.write_title(bufnr, title, line)
   local title_mark = M.write_block(bufnr, { title, "" }, line, true)
   vim.api.nvim_buf_add_highlight(bufnr, -1, "OctoIssueTitle", 0, 0, -1)
   local buffer = octo_buffers[bufnr]
+
+  vim.print(buffer)
   if buffer then
     buffer.titleMetadata = TitleMetadata:new {
       savedBody = title,