Merge pull request #57 from jens1205/issue56

replacement of variables also for imported files + refactoring (split into multiple modules)

Author: jens1205

lua/rest-nvim/config.lua lua/rest-nvim/config/init.lualua/rest-nvim/config.lua renamed to lua/rest-nvim/config/init.lua

@@ -0,0 +1,113 @@
+local utils = require("rest-nvim.utils")
+local curl = require("plenary.curl")
+local config = require("rest-nvim.config")
+
+local M = {}
+-- get_or_create_buf checks if there is already a buffer with the rest run results
+-- and if the buffer does not exists, then create a new one
+M.get_or_create_buf = function()
+  local tmp_name = "rest_nvim_results"
+
+  -- Check if the file is already loaded in the buffer
+  local existing_bufnr = vim.fn.bufnr(tmp_name)
+  if existing_bufnr ~= -1 then
+    -- Set modifiable
+    vim.api.nvim_buf_set_option(existing_bufnr, "modifiable", true)
+    -- Prevent modified flag
+    vim.api.nvim_buf_set_option(existing_bufnr, "buftype", "nofile")
+    -- Delete buffer content
+    vim.api.nvim_buf_set_lines(
+      existing_bufnr,
+      0,
+      vim.api.nvim_buf_line_count(existing_bufnr) - 1,
+      false,
+      {}
+    )
+
+    -- Make sure the filetype of the buffer is httpResult so it will be highlighted
+    vim.api.nvim_buf_set_option(existing_bufnr, "ft", "httpResult")
+
+    return existing_bufnr
+  end
+
+  -- Create new buffer
+  local new_bufnr = vim.api.nvim_create_buf(false, "nomodeline")
+  vim.api.nvim_buf_set_name(new_bufnr, tmp_name)
+  vim.api.nvim_buf_set_option(new_bufnr, "ft", "httpResult")
+  vim.api.nvim_buf_set_option(new_bufnr, "buftype", "nofile")
+
+  return new_bufnr
+end
+
+-- curl_cmd runs curl with the passed options, gets or creates a new buffer
+-- and then the results are printed to the recently obtained/created buffer
+-- @param opts curl arguments
+M.curl_cmd = function(opts)
+  local res = curl[opts.method](opts)
+  if opts.dry_run then
+    print("[rest.nvim] Request preview:\n" .. "curl " .. table.concat(res, " "))
+    return
+  end
+
+  if res.exit ~= 0 then
+    error("[rest.nvim] " .. utils.curl_error(res.exit))
+  end
+
+  local res_bufnr = M.get_or_create_buf()
+  local json_body = false
+
+  -- Check if the content-type is "application/json" so we can format the JSON
+  -- output later
+  for _, header in ipairs(res.headers) do
+    if string.find(header, "application/json") then
+      json_body = true
+      break
+    end
+  end
+
+  --- Add metadata into the created buffer (status code, date, etc)
+  -- Request statement (METHOD URL)
+  vim.api.nvim_buf_set_lines(res_bufnr, 0, 0, false, { opts.method:upper() .. " " .. opts.url })
+  -- HTTP version, status code and its meaning, e.g. HTTP/1.1 200 OK
+  local line_count = vim.api.nvim_buf_line_count(res_bufnr)
+  vim.api.nvim_buf_set_lines(
+    res_bufnr,
+    line_count,
+    line_count,
+    false,
+    { "HTTP/1.1 " .. utils.http_status(res.status) }
+  )
+  -- Headers, e.g. Content-Type: application/json
+  vim.api.nvim_buf_set_lines(
+    res_bufnr,
+    line_count + 1,
+    line_count + 1 + #res.headers,
+    false,
+    res.headers
+  )
+
+  --- Add the curl command results into the created buffer
+  if json_body then
+    -- format JSON body
+    res.body = vim.fn.system("jq", res.body)
+  end
+  local lines = utils.split(res.body, "\n")
+  line_count = vim.api.nvim_buf_line_count(res_bufnr) - 1
+  vim.api.nvim_buf_set_lines(res_bufnr, line_count, line_count + #lines, false, lines)
+
+  -- Only open a new split if the buffer is not loaded into the current window
+  if vim.fn.bufwinnr(res_bufnr) == -1 then
+    local cmd_split = [[vert sb]]
+    if config.result_split_horizontal == true then
+      cmd_split = [[sb]]
+    end
+    vim.cmd(cmd_split .. res_bufnr)
+    -- Set unmodifiable state
+    vim.api.nvim_buf_set_option(res_bufnr, "modifiable", false)
+  end
+
+  -- Send cursor in response buffer to start
+  utils.go_to_line(res_bufnr, 1)
+end
+
+return M