local TEMP_DIR_PATH = "bin/"
local TEMP_FILE_PATH = TEMP_DIR_PATH .. "metadata_test"

local fs = require("@lune/fs")
local task = require("@lune/task")

-- Generate test data & make sure our bin dir exists

local binary = ""
for _ = 1, 1024 do
	binary ..= string.char(math.random(1, 127))
end

fs.writeDir(TEMP_DIR_PATH)
if fs.isFile(TEMP_FILE_PATH) then
	fs.removeFile(TEMP_FILE_PATH)
end

--[[
	1. File should initially not exist
	2. Write the file
	3. File should now exist
]]

assert(not fs.metadata(TEMP_FILE_PATH).exists, "File metadata not exists failed")
fs.writeFile(TEMP_FILE_PATH, binary)
assert(fs.metadata(TEMP_FILE_PATH).exists, "File metadata exists failed")

--[[
	1. Kind should be `dir` for our temp directory
	2. Kind should be `file` for our temp file
]]

local metaDir = fs.metadata(TEMP_DIR_PATH)
local metaFile = fs.metadata(TEMP_FILE_PATH)
assert(metaDir.kind == "dir", "Dir metadata kind was invalid")
assert(metaFile.kind == "file", "File metadata kind was invalid")

--[[
	1. Capture initial metadata
	2. Wait for a bit so that timestamps can change
	3. Write the file, with an extra newline
	4. Metadata changed timestamp should be different
	5. Metadata created timestamp should be the same different
]]

local metaBefore = fs.metadata(TEMP_FILE_PATH)
task.wait()
fs.writeFile(TEMP_FILE_PATH, binary .. "\n")
local metaAfter = fs.metadata(TEMP_FILE_PATH)

assert(
	metaAfter.modifiedAt ~= metaBefore.modifiedAt,
	"File metadata change timestamp did not change"
)
assert(
	metaAfter.createdAt == metaBefore.createdAt,
	"File metadata creation timestamp changed from modification"
)

--[[
	1. Permissions should exist
	2. Our newly created file should not be readonly
]]
assert(metaAfter.permissions ~= nil, "File metadata permissions are missing")
assert(not metaAfter.permissions.readOnly, "File metadata permissions are readonly")

-- Finally, clean up after us for any subsequent tests

fs.removeFile(TEMP_FILE_PATH)