feat(agenda): Add custom agenda commands (#850)

DOCS.md

@@ -506,8 +506,18 @@ Determine on which day the week will start in calendar modal (ex: [changing the
 #### **emacs_config**
 
 _type_: `table`<br />
-_default value_: `{ executable_path = 'emacs', config_path='$HOME/.emacs.d/init.el' }`<br />
+_default value_: `{ executable_path = 'emacs', config_path=nil }`<br />
 Set configuration for your emacs. This is useful for having the emacs export properly pickup your emacs config and plugins.
+If `config_path` is not provided, exporter tries to find a configuration file from these locations:
+
+1. `~/.config/emacs/init.el`
+2. `~/.emacs.d/init.el`
+3. `~/.emacs.el`
+
+If there is no configuration found, it will still process the export.
+
+If it finds a configuration and export attempt fails because of the configuration issue, there will be a prompt to
+attempt the same export without the configuration file.
 
 ### Agenda settings
 
@@ -548,6 +558,107 @@ Example:<br />
 If `org_agenda_start_on_weekday` is `false`, and `org_agenda_start_day` is `-2d`,<br />
 agenda will always show current week from today - 2 days
 
+#### **org_agenda_custom_commands**
+
+_type_: `table<string, OrgAgendaCustomCommand>`<br />
+_default value_: `{}`<br />
+
+Define custom agenda views that are available through the (org_agenda)[#org_agenda] mapping.
+It is possible to combine multiple agenda types into single view.
+An example:
+
+```lua
+require('orgmode').setup({
+  org_agenda_files = {'~/org/**/*'},
+  org_agenda_custom_commands = {
+    -- "c" is the shortcut that will be used in the prompt
+    c = {
+      description = 'Combined view', -- Description shown in the prompt for the shortcut
+      types = {
+        {
+          type = 'tags_todo', -- Type can be agenda | tags | tags_todo
+          match = '+PRIORITY="A"', --Same as providing a "Match:" for tags view <leader>oa + m, See: https://orgmode.org/manual/Matching-tags-and-properties.html
+          org_agenda_overriding_header = 'High priority todos',
+          org_agenda_todo_ignore_deadlines = 'far', -- Ignore all deadlines that are too far in future (over org_deadline_warning_days). Possible values: all | near | far | past | future
+        },
+        {
+          type = 'agenda',
+          org_agenda_overriding_header = 'My daily agenda',
+          org_agenda_span = 'day' -- can be any value as org_agenda_span
+        },
+        {
+          type = 'tags',
+          match = 'WORK', --Same as providing a "Match:" for tags view <leader>oa + m, See: https://orgmode.org/manual/Matching-tags-and-properties.html
+          org_agenda_overriding_header = 'My work todos',
+          org_agenda_todo_ignore_scheduled = 'all', -- Ignore all headlines that are scheduled. Possible values: past | future | all
+        },
+        {
+          type = 'agenda',
+          org_agenda_overriding_header = 'Whole week overview',
+          org_agenda_span = 'week', -- 'week' is default, so it's not necessary here, just an example
+          org_agenda_start_on_weekday = 1 -- Start on Monday
+          org_agenda_remove_tags = true -- Do not show tags only for this view
+        },
+      }
+    },
+    p = {
+      description = 'Personal agenda',
+      types = {
+        {
+          type = 'tags_todo',
+          org_agenda_overriding_header = 'My personal todos',
+          org_agenda_category_filter_preset = 'todos', -- Show only headlines from `todos` category. Same value providad as when pressing `/` in the Agenda view
+          org_agenda_sorting_strategy = {'todo-state-up', 'priority-down'} -- See all options available on org_agenda_sorting_strategy
+        },
+        {
+          type = 'agenda',
+          org_agenda_overriding_header = 'Personal projects agenda',
+          org_agenda_files = {'~/my-projects/**/*'}, -- Can define files outside of the default org_agenda_files
+        },
+        {
+          type = 'tags',
+          org_agenda_overriding_header = 'Personal projects notes',
+          org_agenda_files = {'~/my-projects/**/*'},
+          org_agenda_tag_filter_preset = 'NOTES-REFACTOR' -- Show only headlines with NOTES tag that does not have a REFACTOR tag. Same value providad as when pressing `/` in the Agenda view
+        },
+      }
+    }
+  }
+})
+```
+
+#### **org_agenda_sorting_strategy**
+_type_: `table<'agenda' | 'todo' | 'tags', OrgAgendaSortingStrategy[]><`<br />
+default value: `{ agenda = {'time-up', 'priority-down', 'category-keep'}, todo = {'priority-down', 'category-keep'}, tags = {'priority-down', 'category-keep'}}`<br />
+List of sorting strategies to apply to a given view.
+Available strategies:
+
+- `time-up` - Sort entries by time of day. Applicable only in `agenda` view
+- `time-down` - Opposite of `time-up`
+- `priority-down` - Sort by priority, from highest to lowest
+- `priority-up` - Sort by priority, from lowest to highest
+- `tag-up` - Sort by sorted tags string, ascending
+- `tag-down` - Sort by sorted tags string, descending
+- `todo-state-up` - Sort by todo keyword by position (example: 'TODO, PROGRESS, DONE' has a sort value of 1, 2 and 3), ascending
+- `todo-state-down` - Sort by todo keyword, descending
+- `clocked-up` - Show clocked in headlines first
+- `clocked-down` - Show clocked in headines last
+- `category-up` - Sort by category name, ascending
+- `category-down` - Sort by category name, descending
+- `category-keep` - Keep default category sorting, as it appears in org-agenda-files
+
+
+#### **org_agenda_block_separator**
+_type_: `string`<br />
+default value: `-`<br />
+Separator used to separate multiple agenda views generated by org_agenda_custom_commands.<br />
+To change the highlight, override `@org.agenda.separator` hl group.
+
+#### **org_agenda_remove_tags**
+_type_: `boolean`<br />
+default value: `false`<br />
+Should tags be hidden from all agenda views.
+
 #### **org_capture_templates**
 
 _type_: `table<string, table>`<br />

lua/orgmode/agenda/agenda_item.lua

@@ -20,6 +20,7 @@ end
 ---@field is_in_date_range boolean
 ---@field date_range_days number
 ---@field label string
+---@field index number
 local AgendaItem = {}
 
 ---@param headline_date OrgDate single date in a headline

lua/orgmode/agenda/filter.lua

@@ -1,18 +1,22 @@
 ---@class OrgAgendaFilter
 ---@field value string
 ---@field available_values table<string, boolean>
+---@field types? ('tags' | 'categories')[]
 ---@field values table[]
 ---@field term string
 ---@field parsed boolean
 local AgendaFilter = {}
 
+---@param opts? { types?: ('tags' | 'categories')[] }
 ---@return OrgAgendaFilter
-function AgendaFilter:new()
+function AgendaFilter:new(opts)
+  opts = opts or {}
   local data = {
     value = '',
     available_values = {},
     values = {},
     term = '',
+    types = opts.types or { 'tags', 'categories' },
     parsed = false,
   }
   setmetatable(data, self)
@@ -52,13 +56,31 @@ end
 ---@param headline OrgHeadline
 ---@return boolean
 function AgendaFilter:_match(headline)
+  local filters = {}
+  if vim.tbl_contains(self.types, 'tags') then
+    table.insert(filters, function(tag)
+      return headline:has_tag(tag)
+    end)
+  end
+  if vim.tbl_contains(self.types, 'categories') then
+    table.insert(filters, function(category)
+      return headline:matches_category(category)
+    end)
+  end
   for _, value in ipairs(self.values) do
     if value.operator == '-' then
-      if headline:has_tag(value.value) or headline:matches_category(value.value) then
+      for _, filter in ipairs(filters) do
+        if filter(value.value) then
+          return false
+        end
+      end
+    else
+      local result = vim.tbl_filter(function(filter)
+        return filter(value.value)
+      end, filters)
+      if #result == 0 then
         return false
       end
-    elseif not headline:has_tag(value.value) and not headline:matches_category(value.value) then
-      return false
     end
   end
 
@@ -104,9 +126,13 @@ function AgendaFilter:parse_available_filters(agenda_views)
   for _, agenda_view in ipairs(agenda_views) do
     for _, line in ipairs(agenda_view:get_lines()) do
       if line.headline then
-        values[line.headline:get_category()] = true
-        for _, tag in ipairs(line.headline:get_tags()) do
-          values[tag] = true
+        if vim.tbl_contains(self.types, 'categories') then
+          values[line.headline:get_category()] = true
+        end
+        if vim.tbl_contains(self.types, 'tags') then
+          for _, tag in ipairs(line.headline:get_tags()) do
+            values[tag] = true
+          end
         end
       end
     end

lua/orgmode/agenda/init.lua

@@ -13,9 +13,10 @@ local AgendaTypes = require('orgmode.agenda.types')
 ---@field views OrgAgendaViewType[]
 ---@field filters OrgAgendaFilter
 ---@field files OrgFiles
+---@field highlighter OrgHighlighter
 local Agenda = {}
 
----@param opts? table
+---@param opts? { highlighter: OrgHighlighter, files: OrgFiles }
 function Agenda:new(opts)
   opts = opts or {}
   local data = {
@@ -24,6 +25,7 @@ function Agenda:new(opts)
     content = {},
     highlights = {},
     files = opts.files,
+    highlighter = opts.highlighter,
   }
   setmetatable(data, self)
   self.__index = self
@@ -37,6 +39,7 @@ function Agenda:open_view(type, opts)
   local view_opts = vim.tbl_extend('force', opts or {}, {
     files = self.files,
     agenda_filter = self.filters,
+    highlighter = self.highlighter,
   })
 
   local view = AgendaTypes[type]:new(view_opts)
@@ -53,7 +56,7 @@ function Agenda:render()
   for i, view in ipairs(self.views) do
     view:render(bufnr, line)
     if #self.views > 1 and i < #self.views then
-      colors.add_hr(bufnr, vim.fn.line('$'))
+      colors.add_hr(bufnr, vim.fn.line('$'), config.org_agenda_block_separator)
     end
   end
   vim.bo[bufnr].modifiable = false
@@ -90,6 +93,74 @@ function Agenda:tags_todo(opts)
   return self:open_view('tags_todo', opts)
 end
 
+function Agenda:_build_custom_commands()
+  if not config.org_agenda_custom_commands then
+    return {}
+  end
+  local custom_commands = {}
+  ---@param opts OrgAgendaCustomCommandType
+  local get_type_opts = function(opts, id)
+    local opts_by_type = {
+      agenda = {
+        span = opts.org_agenda_span,
+        start_day = opts.org_agenda_start_day,
+        start_on_weekday = opts.org_agenda_start_on_weekday,
+      },
+      tags = {
+        match_query = opts.match,
+        todo_ignore_scheduled = opts.org_agenda_todo_ignore_scheduled,
+        todo_ignore_deadlines = opts.org_agenda_todo_ignore_deadlines,
+      },
+      tags_todo = {
+        match_query = opts.match,
+        todo_ignore_scheduled = opts.org_agenda_todo_ignore_scheduled,
+        todo_ignore_deadlines = opts.org_agenda_todo_ignore_deadlines,
+      },
+    }
+
+    if not opts_by_type[opts.type] then
+      return
+    end
+
+    opts_by_type[opts.type].sorting_strategy = opts.org_agenda_sorting_strategy
+    opts_by_type[opts.type].filters = self.filters
+    opts_by_type[opts.type].files = self.files
+    opts_by_type[opts.type].header = opts.org_agenda_overriding_header
+    opts_by_type[opts.type].agenda_files = opts.org_agenda_files
+    opts_by_type[opts.type].tag_filter = opts.org_agenda_tag_filter_preset
+    opts_by_type[opts.type].category_filter = opts.org_agenda_category_filter_preset
+    opts_by_type[opts.type].highlighter = self.highlighter
+    opts_by_type[opts.type].remove_tags = opts.org_agenda_remove_tags
+    opts_by_type[opts.type].id = id
+
+    return opts_by_type[opts.type]
+  end
+  for shortcut, command in pairs(config.org_agenda_custom_commands) do
+    table.insert(custom_commands, {
+      label = command.description or '',
+      key = shortcut,
+      action = function()
+        local views = {}
+        for i, agenda_type in ipairs(command.types) do
+          local opts = get_type_opts(agenda_type, ('%s_%s_%d'):format(shortcut, agenda_type.type, i))
+          if not opts then
+            utils.echo_error('Invalid custom agenda command type ' .. agenda_type.type)
+            break
+          end
+          table.insert(views, AgendaTypes[agenda_type.type]:new(opts))
+        end
+        self.views = views
+        local result = self:render()
+        if #self.views > 1 then
+          vim.fn.cursor({ 1, 0 })
+        end
+        return result
+      end,
+    })
+  end
+  return custom_commands
+end
+
 ---@private
 ---@return number buffer number
 function Agenda:_open_window()
@@ -157,6 +228,18 @@ function Agenda:prompt()
       return self:search()
     end,
   })
+
+  local custom_commands = self:_build_custom_commands()
+  if #custom_commands > 0 then
+    for _, command in ipairs(custom_commands) do
+      menu:add_option({
+        label = command.label,
+        key = command.key,
+        action = command.action,
+      })
+    end
+  end
+
   menu:add_option({ label = 'Quit', key = 'q' })
   menu:add_separator({ icon = ' ', length = 1 })
 
@@ -169,10 +252,11 @@ end
 
 ---@param source? string
 function Agenda:redo(source, preserve_cursor_pos)
+  self:_call_all_views('redo')
   return self.files:load(true):next(vim.schedule_wrap(function()
     local save_view = preserve_cursor_pos and vim.fn.winsaveview()
     if source == 'mapping' then
-      self:_call_view_and_render('redo')
+      self:_call_view_and_render('redraw')
     end
     self:render()
     if save_view then
@@ -478,6 +562,18 @@ function Agenda:_call_view(method, ...)
   return executed
 end
 
+function Agenda:_call_all_views(method, ...)
+  local executed = false
+  for _, view in ipairs(self.views) do
+    if view[method] then
+      view[method](view, ...)
+      executed = true
+    end
+  end
+
+  return executed
+end
+
 function Agenda:_call_view_and_render(method, ...)
   local executed = self:_call_view(method, ...)
   if executed then