historyresults.lua

--
-- HistoryResults Widget/View.
-- @copyright Jefferson Gonzalez
-- @license MIT
--
local core = require "core"
local common = require "core.common"
local style = require "core.style"
local Widget = require "widget"
local Label = require "widget.label"
local Line = require "widget.line"
local ListBox = require "widget.listbox"
local TextBox = require "widget.textbox"

---@type plugins.scm
local scm

---@class plugins.scm.HistoryResults : widget
---@field public searching boolean
---@field public symbol string
---@field private title widget.label
---@field private line widget.line
---@field private list_container widget
---@field private list widget.listbox
---@overload fun(project_dir:string,path?:string):plugins.scm.HistoryResults
local HistoryResults = Widget:extend()

---Constructor
---@param project_dir string
---@param path? string
function HistoryResults:new(project_dir, path)
  HistoryResults.super.new(self)

  -- close when automatically loaded from workspace plugin
  if not project_dir then
    core.add_thread(function()
      -- core should offer a function to easily close a view...
      local parent = core.root_view.root_node:get_node_for_view(self)
      if parent then
        parent:close_view(core.root_view.root_node, self)
      end
    end)
    return
  end

  if not scm then
    scm = require "plugins.scm"
  end

  self.defer_draw = false
  self.project_dir = project_dir

  self.searching = true
  if path then
    self.path = common.relative_path(project_dir, path)
  else
    self.path = common.basename(project_dir)
  end

  self.name = self.path .. " - Commits History"
  self.title = Label(self, "History for: " .. self.path)
  self.line = Line(self, 2, style.padding.x)
  self.textbox = TextBox(self, "", "filter commits...")

  self.list_container = Widget(self)
  self.list_container.border.width = 0
  self.list_container:set_size(200, 200)

  self.list = ListBox(self.list_container)
  self.list.border.width = 0

  self.list:enable_expand(true)
  self.list:add_column("Commit")
  self.list:add_column("Author")
  self.list:add_column("Date")
  self.list:add_column("Summary")

  local list_on_row_click = self.list.on_row_click
  self.list.on_row_click = function(this, idx, data)
    list_on_row_click(this, idx, data)
    self:on_selected(idx, data)
  end

  self.textbox.on_change = function(this, value)
    self.list:filter(value)
  end

  self.border.width = 0
  self:set_size(200, 200)
  self:show()
end

---Add a new commit element to the history.
---@param commit plugins.scm.backend.commit
function HistoryResults:add_commit(commit)
  local row = {
    style.syntax.string, commit.hash:sub(1, 8),
    ListBox.COLEND,
    style.syntax.keyword, commit.author,
    ListBox.COLEND,
    style.syntax.literal, commit.date,
    ListBox.COLEND,
    style.text, commit.summary
  }

  self.list:add_row(row, commit)
end

function HistoryResults:stop_searching()
  self.searching = false
end

---@param idx integer
---@param data plugins.scm.backend.commit
function HistoryResults:on_selected(idx, data)
  scm.open_commit_diff(data.hash, self.project_dir)
end

function HistoryResults:update()
  if not HistoryResults.super.update(self) then return end
  -- update the positions and sizes
  self.background_color = style.background
  self.title:set_position(style.padding.x, style.padding.y)
  if not self.searching or #self.list.rows > 0 then
    local label = "Commits: "
    if self.searching then
      label = "Loading Commits: "
    end
    self.title:set_label(
      label
        .. #self.list.rows
        .. ", "
        .. "Path: "
        .. '"'
        .. self.path
        .. '"'
    )
  end
  self.line:set_position(0, self.title:get_bottom() + 10)
  self.textbox:set_position(style.padding.x, self.line:get_bottom() + 5)
  self.textbox:set_size(self:get_width() - style.padding.x * 2)
  self.list_container:set_position(style.padding.x, self.textbox:get_bottom() + 10)
  self.list_container:set_size(
    self.size.x - (style.padding.x * 2),
    self.size.y - self.textbox:get_bottom()
  )
end


return HistoryResults