local function rng_markup() return math.random() > 0.5 and "plain" or "imageboard" end
local function generate_str(length,characters)
	return function()
		local t = {}
		local rnglength = math.random(2,length)
		for i = 1,rnglength do
			local rngpos = math.random(#characters)
			local rngchar = string.sub(characters,rngpos,rngpos)
			table.insert(t,rngchar)
		end
		local ret = table.concat(t)
		return ret
	end
end
local function characters(mask)
	local t = {}
	for i = 1,255 do
		if string.match(string.char(i), mask) then
			table.insert(t,string.char(i))
		end
	end
	return table.concat(t)
end
local function maybe(input,chance)
	chance = chance or 0.5
	if math.random() < chance then
		return input
	end
end
local rng_any = generate_str(1024,characters("."))
local rng_subdomain = generate_str(30,characters("[0-9a-z]"))
local rng_storyname = generate_str(10,"[a-zA-Z0-9$+!*'(),-]")
local rng_storyid = function() return tostring(math.random(1,10)) end
local rng_tags = function()
	local tag_gen = generate_str(10,"[%w%d ]")
	local t = {}
	for i = 1,10 do
		table.insert(t,tag_gen())
	end
	return table.concat(t,";")
end

local pages = {
	index = {
		route = "/",
		name = "home",
		methods = {
			GET={}
		}
	},
	paste = {
		route = "/_paste",
		name = "post_story",
		methods = {
			GET={},
			POST={
				title = rng_any,
				text = rng_any,
				pasteas = rng_subdomain,
				markup = rng_markup,
				tags = rng_any,
			}
		}
	},
	edit = {
		route = "/_edit",
		name = "edit",
		methods = {
			GET={
				story=rng_storyid
			},
			POST={
				story=rng_storyid,
				title = rng_any,
				text = rng_any,
				pasteas = rng_subdomain,
				markup = rng_markup,
				tags = rng_any
			},
		}
	},
	bio = {
		route = "/_bio",
		name = "edit_bio",
		methods = {
			GET={},
			POST={
				user = rng_subdomain,
				pass = rng_any
			},
		}
	},
	login = {
		route = "/_login",
		name = "login",
		methods = {
			GET={},
			POST={
				user = rng_subdomain,
				pass = rng_any
			},
		}
	},
	claim = {
		route = "/_claim",
		name = "claim",
		methods = {
			GET = {},
			POST = {
				user = rng_subdomain
			}
		}
	},
	download = {
		route = "/_download",
		name = "download",
		methods = {
			GET = {
				story = rng_storyid
			},
		}
	},
	preview = {
		route = "/_preview",
		name = "preview",
		methods = {
			POST = {
				title = rng_any,
				text = rng_any,
				markup = rng_markup,
				tags = maybe(rng_tags)
			},
		}
	},
	search = {
		route = "/_search",
		name = "search",
		methods = {
			GET = {},
		}
	}
	
}

local request_stub_m = {}
function http_response(req,errcode,str)
	req.responded = true
	req.errcode = errcode
	req.message = str
end
function http_request_get_host(reqstub)
	return "localhost:8888"
end
function http_request_populate_post(reqstub)
	reqstub.post_populated = true
end

local function fuzz_endpoint(endpoint, parameters)
	for i = 1,100 do
		local req = {}
		for paramtype, params in pairs(parameters) do

		end
	end
	return true
end

local function generate_req(tbl)
	assert(({GET=true,POST=true})[tbl.method])
	return tbl
end
local env = {}
local smr_mock_env = {
	--An empty function that gets called to set up databases and do other
	--startup-time stuff, runs once for each worker process.
	configure = spy.new(function(...) end),
	http_request_get_host = spy.new(function(req) return env.host or "test.host" end),
	http_request_get_path = spy.new(function(req) return env.path or "/" end),
	http_request_populate_qs = spy.new(function(req) req.qs_populated = true end),
	http_request_populate_post = spy.new(function(req) req.post_populated = true end),
	http_populate_multipart_form = spy.new(function(req) req.post_populated = true end),
	http_argument_get_string = spy.new(function(req,str)
		assert(
			req.method == "GET" and req.qs_populated or
			req.method == "POST" and req.post_populated,[[
			http_argument_get_string() can only be called after
			the appropriate populate method has been called, either
			http_request_populate_qs(req) or
			http_request_populate_post(req)]]
		)
		return req.args[str]
	end),
	http_file_get = spy.new(function(req,filename) return "file data" end),
	http_response = spy.new(function(req,errcode,html) end),
	http_response_header = spy.new(function(req,name,value) end),
	http_method_text = spy.new(function(req) return req.method end),
	http_populate_cookies = spy.new(function(req) req.cookies_populated = true end),
	http_request_cookie = spy.new(function(req,cookie_name)

	end),
	http_response_cookie = spy.new(function(req,name,value) req.cookies = {[name] = value} end),
	log = spy.new(function(priority, message) end),
	sha3 = spy.new(function(message) return "digest" end),
}
local sfmt = string.format
local string_fmt_override = {
	--[[
	format = spy.new(function(fmt,...)
		local args = {...}
		for i = 1,#args do
			if args[i] == nil then
				args[i] = "nil"
			end
		end
		table.insert(args,1,fmt)
		return sfmt(unpack(args))
	end)
	]]
}
setmetatable(string_fmt_override,{__index = string})
local smr_override_env = {
	--Detour assert so we don't actually perform any checks
	--assert = spy.new(function(bool,msg,level) return bool end),
	--Allow string.format to accept nil as arguments
	--string = string_fmt_override
}
local smr_mock_env_m = {
	__index = smr_mock_env,
	__newindex = function(self,key,value)
		local setter = debug.getinfo(2)
		if setter.source ~= "=[C]" and setter.source ~= "@./global.lua" and key ~= "configure" then
			error(string.format(
				"Tried to create a global %q with value %s\n%s",
				key,
				tostring(value),
				debug.traceback()
			),2)
		else
			rawset(self,key,value)
		end
	end
}

describe("smr",function()
	for name, obj in pairs(pages) do
		describe("endpoint " .. name,function()
			for method,parameters in pairs(obj.methods) do
				describe("method " .. method,function()
					local fname = string.format("%s_%s",name,string.lower(method))
					local olds = {}
					setup(function()
						setmetatable(_G,smr_mock_env_m)
						for k,v in pairs(smr_override_env) do
							olds[k] = _G[k]
							_G[k] = v
						end
					end)
					teardown(function()
						setmetatable(_G,{})
						for k,v in pairs(olds) do
							_G[k] = v
						end
					end)
					it("should be named appropriately",function()
						local f = assert(io.open("endpoints/"..fname .. ".lua","r"))
						f:close()
					end)
					it("should run without errors",function()
						require("endpoints." .. fname)
					end)
					it("should configure without errors",function()
						require("endpoints." .. fname)
						configure()
					end)
					it("should return a function",function()
						local pagefunc = assert(require("endpoints." .. fname))
						assert(type(pagefunc) == "function")
					end)
					it("should call http_response() at some point #slow",function()
						local pagefunc = require("endpoints." .. fname)
						for i = 1,10 do
							local req = {}
							req.method = method
							req.path = obj.route
							req.args = {}
							for param_name,param_rng_func in pairs(parameters) do
								local param = param_rng_func()
								req.args[param_name] = param
							end
							pagefunc(req)
							assert.spy(smr_mock_env.http_response).was_called()
						end
					end)

				end)
			end
		end)
	end
end)