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local config = require("inbox.config")
local indexers = require("inbox.indexers")
local utils = require("inbox.utils")
local M = {}
---@param path string
---@param buf_options table<string, any> | nil
---@return integer bufnr
function M.create_buffer(path, buf_options)
local bufnr = vim.api.nvim_create_buf(true, false)
for k, v in pairs(buf_options or {}) do
vim.api.nvim_buf_set_option(bufnr, k, v)
end
local bufname = string.format("maildir://%s", path)
vim.api.nvim_buf_set_name(bufnr, bufname)
return bufnr
end
function M.render_buffer(bufnr)
local maildir, id = utils.parse_scheme(bufnr)
if maildir == nil then
vim.notify(("Buffer is not a valid maildir buffer: %s"):format(bufnr), vim.log.levels.ERROR)
elseif id ~= nil and id ~= "" then
M.render_entry(bufnr, id)
else
M.render_inbox(bufnr, maildir)
end
end
---@param bufnr integer
---@param lines string[]
---@param start integer?
---@param end_ integer?
function M.set_buffer_content(bufnr, lines, start, end_)
if start == nil then
start = 0
end
if end_ == nil then
end_ = -1
end
vim.bo[bufnr].modifiable = true
vim.api.nvim_buf_set_lines(bufnr, start, end_, true, lines)
vim.bo[bufnr].modifiable = false
vim.bo[bufnr].modified = false
end
---@param maildir string
---@return integer bufnr
function M.initialize_inbox(maildir)
local buf_options = vim.tbl_extend("keep", config.buf_options, {
buftype = "acwrite",
syntax = "inbox",
filetype = "inbox",
})
local bufnr = M.create_buffer(maildir, buf_options)
-- vim.api.nvim_clear_autocmds({ buffer = bufnr, group = "Inbox" })
vim.keymap.set("n", "<Enter>", require("inbox").open_entry, { buffer = bufnr })
M.render_inbox(bufnr, maildir)
return bufnr
end
---@param bufnr integer
function M.render_inbox(bufnr, maildir)
local indexer = indexers.get_indexer()
indexer.index(maildir, function(ids, entries, signs)
vim.b[bufnr].inbox_ids = ids
local lines, highlights = utils.render_table(entries, config.columns)
local winid = vim.api.nvim_get_current_win()
for k, v in pairs(config.win_options) do
vim.api.nvim_set_option_value(k, v, { scope = "local", win = winid })
end
M.set_buffer_content(bufnr, lines)
utils.set_highlights(bufnr, highlights)
utils.set_signs(bufnr, signs)
vim.api.nvim_set_option_value(
"winbar",
utils.render_row({ "Flags", "Date", "From", "Subject" }, {
vim.fn.getwininfo(winid)[1].textoff,
unpack(config.columns),
}),
{ scope = "local", win = winid }
)
end)
end
---@param maildir string
---@param id string
---@param content_type string
---@return integer? bufnr
function M.initialize_entry(maildir, id, content_type)
local bufname = ("%s:%s"):format(maildir, id)
local bufnr = M.create_buffer(bufname, {
syntax = "mail",
filetype = "mail",
})
vim.api.nvim_clear_autocmds({ buffer = bufnr, group = require("inbox").augroup })
vim.api.nvim_create_autocmd("BufDelete", {
group = "Inbox",
buffer = bufnr,
callback = function()
require("inbox").buffers[id] = nil
end,
})
vim.keymap.set("n", "q", function()
vim.api.nvim_buf_delete(bufnr, {})
end, { buffer = bufnr })
vim.keymap.set("n", "<C-h>", require("inbox").toggle_headers, { buffer = bufnr })
vim.keymap.set("n", "<C-n>", function()
local k, v = next(vim.b[bufnr].inbox_parts, vim.b[bufnr].inbox_part_index)
if k == nil then
k, v = next(vim.b[bufnr].inbox_parts)
end
M.render_entry(bufnr, id, v["content-type"])
end, { buffer = bufnr })
vim.b[bufnr].inbox_id = id
vim.b[bufnr].header_filter = config.headers
M.render_headers(bufnr, id)
M.render_entry(bufnr, id, content_type)
return bufnr
end
function M.render_headers(bufnr, id)
local indexer = indexers.get_indexer()
local entry = indexer.get_entry(id)
if entry == nil then
return
end
local lines = {}
for _, name in pairs(config.headers) do
if entry.headers[name] ~= nil then
table.insert(lines, ("%s: %s"):format(name, entry.headers[name]))
end
end
if vim.b[bufnr].show_all_headers then
for name, value in pairs(entry.headers) do
if not vim.tbl_contains(config.headers, name) then
table.insert(lines, ("%s: %s"):format(name, value))
end
end
end
table.insert(lines, "")
local cursor_pos = vim.fn.getpos(".")
if vim.b[bufnr].header_count ~= nil then
M.set_buffer_content(bufnr, {}, 0, vim.b[bufnr].header_count)
end
M.set_buffer_content(bufnr, lines, 0, 0)
vim.b[bufnr].header_count = #lines
vim.fn.setpos(".", cursor_pos)
end
function M.render_entry(bufnr, id, content_type)
local indexer = indexers.get_indexer()
indexer.get_part(id, content_type, function(entry, index, lines)
M.set_buffer_content(bufnr, lines, vim.b[bufnr].header_count)
vim.b[bufnr].inbox_parts = entry.parts
vim.b[bufnr].inbox_part_index = index
local winid = vim.api.nvim_get_current_win()
vim.api.nvim_set_option_value(
"winbar",
vim.b[bufnr].inbox_parts[vim.b[bufnr].inbox_part_index]["content-type"],
{ scope = "local", win = winid }
)
end)
end
return M
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