-- SPDX-FileCopyrightText: © 2022—2026 Vladimir Zorin <vladimir@deviant.guru>
-- SPDX-License-Identifier: LicenseRef-OWL-1.0-or-later
-- Licensed under OWL v1.0+. See LICENSE.

local testimony = require("testimony")
local render = require("lilgit.render")

local testify = testimony.new("== lilgit.render ==")

testify:that("html_escape: escapes all five special characters", function()
	testimony.assert_equal("&amp;&lt;&gt;&quot;&#39;", render.html_escape("&<>\"'"))
end)

testify:that("html_escape: does not double-escape ampersands in entities", function()
	testimony.assert_equal("&amp;amp;", render.html_escape("&amp;"))
end)

testify:that("href: escapes each segment, keeps ref slashes literal", function()
	testimony.assert_equal(
		"/repo/tree/feature/foo/a%20b/c/",
		render.href("repo", "tree", "feature/foo", { "a b", "c" }, true)
	)
	testimony.assert_equal("/repo/blob/main/file.md", render.href("repo", "blob", "main", { "file.md" }, false))
end)

testify:that("markdown: extracts the first h1 as title and removes it from the body", function()
	local html, title = render.markdown("# Hello *World*\n\nBody text.\n", "file.md")
	testimony.assert_equal("Hello World", title)
	testimony.assert_nil(html:match("<h1"))
	testimony.assert_match("Body text", html)
end)

testify:that("markdown: title falls back to the filename without an h1", function()
	local html, title = render.markdown("Just a paragraph.\n", "notes.md")
	testimony.assert_equal("notes.md", title)
	testimony.assert_match("Just a paragraph", html)
end)

testify:that("markdown: code blocks keep language classes", function()
	local html = render.markdown("```lua\nprint(1)\n```\n", "code.md")
	testimony.assert_match("language%-lua", html)
end)

testify:that("build_templates: user overrides win over defaults", function()
	local templates = render.build_templates({ templates = { page = "<x>${body}</x>" } })
	testimony.assert_equal("<x>${body}</x>", templates.page)
	testimony.assert_not_nil(render.build_templates({}).page)
end)

testify:that("tree_page: fills the shell, escapes names, links entries", function()
	local state = {
		cfg = { site_title = "test site" },
		templates = render.build_templates({}),
	}
	local repo = { name = "repo", default_branch = "main" }
	local listing = {
		{ name = "sub", sha = string.rep("a", 40), kind = "tree", mode = "40000" },
		{ name = "a<b.txt", sha = string.rep("b", 40), kind = "blob", mode = "100644" },
		{ name = "gl", sha = string.rep("c", 40), kind = "gitlink", mode = "160000" },
	}
	local html = render.tree_page(state, repo, "main", {}, listing, "<p>readme body</p>", "Readme Title")
	testimony.assert_match('href="/repo/tree/main/sub/"', html)
	testimony.assert_match('href="/repo/blob/main/a%%3Cb%.txt"', html)
	testimony.assert_match("a&lt;b%.txt", html)
	testimony.assert_match("gl @ ccccccc", html)
	testimony.assert_match("readme body", html)
	testimony.assert_match("Readme Title", html)
	testimony.assert_match("test site", html)
end)

testify:conclude()