feat(agenda): implement support for org_agenda_prefix_format

doc/orgmode.txt

@@ -845,6 +845,59 @@ Separator used to separate multiple agenda views generated by
 `@org.agenda.separator` hl group.
 
 
+org_agenda_prefix_format                    *orgmode-org_agenda_prefix_format*
+
+- Type: `{ agenda?: string, todo?: string, tags?: string, search?: string,
+    tags_todo?: string }`
+- Default:
+    >lua
+        {
+          agenda = '  %-12:c%?t% s',
+          todo = '  %-12:c',
+          tags = '  %-12:c',
+          tags_todo = '  %-12:c',
+          search = '  %-12:c',
+        }
+    <
+
+Format for the prefix of each line in the agenda view. The format string can
+contain placeholders that will be replaced with actual values. Format of the
+placeholder: `%[specifiers][variable]` or `%[specifiers](lua expression)`.
+
+**Specifiers:**
+
+- `-` - Left align the value (default is right align)
+- `[number]` - Set fixed width for the value
+- `?` - Optional placeholder. If the value is empty, the placeholder (and surrounding spaces) will be omitted.
+
+**Variables:**
+
+- `c` - Category of the headline
+- `:c` - Category of the headline followed by a colon
+- `s` - Planning info (Deadline, Scheduled, etc.)
+- `t` - Time range (e.g. 10:00-11:00)
+- `T` - Tags
+- `e` - Effort property
+- `l` - Headline level
+- `b` - Breadcrumbs (parent headline titles separated by `->`)
+
+**Lua expressions:** Anything inside `%()` will be evaluated as a Lua
+expression. The expression has access to following variables:
+
+- `headline` - |orgmode-orgheadline| object
+- `item` - |orgmode-orgagendaitem| object (only in `agenda` view)
+- `metadata` - Metadata table containing `category_length`
+
+Example:
+
+>lua
+    org_agenda_prefix_format = {
+      agenda = ' %-12:c %?t %s ',
+      todo = ' %-12:c %(headline:get_property("PRIORITY") or "C") '
+    }
+<
+
+
 org_agenda_remove_tags                        *orgmode-org_agenda_remove_tags*
 
 - Type: `boolean`

docs/configuration.org

@@ -788,6 +788,56 @@ Separator used to separate multiple agenda views generated by
 [[#org_agenda_custom_commands][org_agenda_custom_commands]].
 To change the highlight, override =@org.agenda.separator= hl group.
 
+*** org_agenda_prefix_format
+:PROPERTIES:
+:CUSTOM_ID: org_agenda_prefix_format
+:END:
+- Type: ={ agenda?: string, todo?: string, tags?: string, search?: string, tags_todo?: string }=
+- Default:
+  #+begin_src lua
+  {
+    agenda = '  %-12:c%?t% s',
+    todo = '  %-12:c',
+    tags = '  %-12:c',
+    tags_todo = '  %-12:c',
+    search = '  %-12:c',
+  }
+  #+end_src
+
+Format for the prefix of each line in the agenda view.
+The format string can contain placeholders that will be replaced with actual values.
+Format of the placeholder: =%[specifiers][variable]= or =%[specifiers](lua expression)=.
+
+*Specifiers:*
+- =-= - Left align the value (default is right align)
+- =[number]= - Set fixed width for the value
+- =?= - Optional placeholder. If the value is empty, the placeholder (and surrounding spaces) will be omitted.
+
+*Variables:*
+- =c= - Category of the headline
+- =:c= - Category of the headline followed by a colon
+- =s= - Planning info (Deadline, Scheduled, etc.)
+- =t= - Time range (e.g. 10:00-11:00)
+- =T= - Tags
+- =e= - Effort property
+- =l= - Headline level
+- =b= - Breadcrumbs (parent headline titles separated by =->=)
+
+*Lua expressions:*
+Anything inside =%()= will be evaluated as a Lua expression.
+The expression has access to following variables:
+- =headline= - [[#org-headline][OrgHeadline]] object
+- =item= - [[#org-agenda-item][OrgAgendaItem]] object (only in =agenda= view)
+- =metadata= - Metadata table containing =category_length=
+
+Example:
+#+begin_src lua
+org_agenda_prefix_format = {
+  agenda = ' %-12:c %?t %s ',
+  todo = ' %-12:c %(headline:get_property("PRIORITY") or "C") '
+}
+#+end_src
+
 *** org_agenda_remove_tags
 :PROPERTIES:
 :CUSTOM_ID: org_agenda_remove_tags

lua/orgmode/agenda/agenda_item.lua

@@ -20,6 +20,8 @@ end
 ---@field is_in_date_range boolean
 ---@field date_range_days number
 ---@field label string
+---@field time string
+---@field marker string
 ---@field index number
 local AgendaItem = {}
 
@@ -77,6 +79,8 @@ function AgendaItem:_process()
 end
 
 function AgendaItem:_generate_data()
+  self.time = self.headline_date:has_time() and self:_format_time(self.headline_date) or ''
+  self.marker = self:_generate_marker()
   self.label = self:_generate_label()
 end
 
@@ -152,19 +156,18 @@ function AgendaItem:_is_valid_for_date()
 
   return false
 end
-
-function AgendaItem:_generate_label()
-  local time = self.headline_date:has_time() and add_padding(self:_format_time(self.headline_date)) or ''
+---@private
+function AgendaItem:_generate_marker()
   if self.headline_date:is_deadline() then
     if self.is_same_day then
-      return time .. 'Deadline:'
+      return 'Deadline:'
     end
     return self.headline_date:humanize(self.date) .. ':'
   end
 
   if self.headline_date:is_scheduled() then
     if self.is_same_day then
-      return time .. 'Scheduled:'
+      return 'Scheduled:'
     end
 
     local diff = math.abs(self.date:diff(self.headline_date))
@@ -174,21 +177,30 @@ function AgendaItem:_generate_label()
 
   if self.headline_date.is_date_range_start then
     if not self.is_in_date_range then
-      return time
+      return ''
     end
-    local range = string.format('(%d/%d):', self.date:diff(self.headline_date) + 1, self.date_range_days)
-    if not self.is_same_day then
-      return range
-    end
-    return time .. range
+    return string.format('(%d/%d):', self.date:diff(self.headline_date) + 1, self.date_range_days)
   end
 
   if self.headline_date.is_date_range_end then
-    local range = string.format('(%d/%d):', self.date_range_days, self.date_range_days)
-    return time .. range
+    return string.format('(%d/%d):', self.date_range_days, self.date_range_days)
+  end
+
+  return ''
+end
+
+function AgendaItem:_generate_label()
+  local include_time = self.time ~= ''
+  if (self.headline_date:is_deadline() or self.headline_date:is_scheduled()) and not self.is_same_day then
+    include_time = false
+  end
+
+  if self.headline_date.is_date_range_start and not self.is_in_date_range and not self.is_same_day then
+    include_time = false
   end
 
-  return time
+  local time = include_time and add_padding(self.time) or ''
+  return time .. self.marker
 end
 
 ---@private

lua/orgmode/agenda/init.lua

@@ -122,7 +122,9 @@ function Agenda:_build_custom_commands()
   end
   local custom_commands = {}
   ---@param opts OrgAgendaCustomCommandType
-  local get_type_opts = function(opts, id)
+  ---@param parent_opts? table
+  local get_type_opts = function(opts, id, parent_opts)
+    parent_opts = parent_opts or {}
     local opts_by_type = {
       agenda = {
         span = opts.org_agenda_span,
@@ -153,7 +155,9 @@ function Agenda:_build_custom_commands()
     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].remove_tags = utils.if_nil(opts.org_agenda_remove_tags, parent_opts.org_agenda_remove_tags)
+    opts_by_type[opts.type].org_agenda_prefix_format =
+      utils.if_nil(opts.org_agenda_prefix_format, parent_opts.org_agenda_prefix_format)
     opts_by_type[opts.type].id = id
 
     return opts_by_type[opts.type]
@@ -165,7 +169,7 @@ function Agenda:_build_custom_commands()
       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))
+          local opts = get_type_opts(agenda_type, ('%s_%s_%d'):format(shortcut, agenda_type.type, i), command)
           if not opts then
             utils.echo_error('Invalid custom agenda command type ' .. agenda_type.type)
             break

lua/orgmode/agenda/types/agenda.lua

@@ -6,6 +6,7 @@ local AgendaItem = require('orgmode.agenda.agenda_item')
 local AgendaView = require('orgmode.agenda.view.init')
 local AgendaLine = require('orgmode.agenda.view.line')
 local AgendaLineToken = require('orgmode.agenda.view.token')
+local Formatter = require('orgmode.agenda.view.formatter')
 local ClockReport = require('orgmode.clock.report')
 local utils = require('orgmode.utils')
 local SortingStrategy = require('orgmode.agenda.sorting_strategy')
@@ -52,6 +53,7 @@ local Promise = require('orgmode.utils.promise')
 ---@field sorting_strategy? OrgAgendaSortingStrategy[]
 ---@field remove_tags? boolean
 ---@field valid_filters? OrgAgendaFilter[]
+---@field org_agenda_prefix_format? table
 ---@field id? string
 ---@field private _grid_times { hour: number, min: number }[]
 local OrgAgendaType = {}
@@ -79,6 +81,7 @@ function OrgAgendaType:new(opts)
     sorting_strategy = opts.sorting_strategy or vim.tbl_get(config.org_agenda_sorting_strategy, 'agenda') or {},
     id = opts.id,
     remove_tags = utils.if_nil(opts.remove_tags, config.org_agenda_remove_tags),
+    org_agenda_prefix_format = opts.org_agenda_prefix_format,
   }
   data.valid_filters = vim.tbl_filter(function(filter)
     return filter and true or false
@@ -246,6 +249,10 @@ function OrgAgendaType:render(bufnr, current_line)
   end
   local agenda_days = self:_get_agenda_days()
 
+  local prefix_formats = self.org_agenda_prefix_format or config.org_agenda_prefix_format
+  local prefix_format = prefix_formats.agenda
+  local compiled_prefix = Formatter.compile(prefix_format)
+
   local agendaView = AgendaView:new({ bufnr = self.bufnr, highlighter = self.highlighter })
   agendaView:add_line(AgendaLine:single_token({
     content = self:_get_title(),
@@ -269,7 +276,7 @@ function OrgAgendaType:render(bufnr, current_line)
     for _, agenda_item in ipairs(agenda_day.agenda_items) do
       -- If there is an index value, this is an AgendaItem instance
       if agenda_item.index then
-        agendaView:add_line(self:_build_line(agenda_item, agenda_day))
+        agendaView:add_line(self:_build_line(agenda_item, agenda_day, compiled_prefix))
       else
         agendaView:add_line(self:_build_time_grid_line(agenda_item, agenda_day))
       end
@@ -496,8 +503,9 @@ end
 ---@private
 ---@param agenda_item OrgAgendaItem
 ---@param metadata table<string, any>
+---@param compiled_prefix? OrgAgendaFormatterSegment[]
 ---@return OrgAgendaLine
-function OrgAgendaType:_build_line(agenda_item, metadata)
+function OrgAgendaType:_build_line(agenda_item, metadata, compiled_prefix)
   local headline = agenda_item.headline
   local item_hl_group = agenda_item:get_hlgroup()
   local line = AgendaLine:new({
@@ -510,11 +518,13 @@ function OrgAgendaType:_build_line(agenda_item, metadata)
       label_length = metadata.label_length,
     },
   })
+
+  local prefix_formats = self.org_agenda_prefix_format or config.org_agenda_prefix_format
+  local prefix_format = compiled_prefix or Formatter.compile(prefix_formats.agenda)
+  local prefix = Formatter.format(prefix_format, agenda_item, metadata)
+
   line:add_token(AgendaLineToken:new({
-    content = '  ' .. utils.pad_right(('%s:'):format(headline:get_category()), metadata.category_length),
-  }))
-  line:add_token(AgendaLineToken:new({
-    content = utils.pad_right(agenda_item.label, metadata.label_length),
+    content = prefix,
   }))
   local todo = headline:get_todo()
   if todo then

lua/orgmode/agenda/types/search.lua

@@ -13,6 +13,7 @@ OrgAgendaSearchType.__index = OrgAgendaSearchType
 ---@param opts OrgAgendaSearchTypeOpts
 function OrgAgendaSearchType:new(opts)
   opts.todo_only = false
+  opts.prefix_key = 'search'
   opts.subheader = 'Press "r" to update search'
   setmetatable(self, { __index = OrgAgendaTodosType })
   local obj = OrgAgendaTodosType:new(opts)

lua/orgmode/agenda/types/tags.lua

@@ -24,6 +24,7 @@ OrgAgendaTagsType.__index = OrgAgendaTagsType
 ---@param opts OrgAgendaTagsTypeOpts
 function OrgAgendaTagsType:new(opts)
   opts.todo_only = opts.todo_only or false
+  opts.prefix_key = 'tags'
   opts.sorting_strategy = opts.sorting_strategy or vim.tbl_get(config.org_agenda_sorting_strategy, 'tags') or {}
   if not opts.id then
     opts.subheader = 'Press "r" to update search'

lua/orgmode/agenda/types/tags_todo.lua

@@ -13,6 +13,7 @@ function OrgAgendaTagsTodoType:new(opts)
     return nil
   end
   setmetatable(obj, self)
+  obj.prefix_key = 'tags_todo'
   return obj
 end