--
-- install.lua
--
-- Fetches the facility-control files a given role needs, from a base URL you
-- host them at (same idea as the mimic installer). Every role also gets
-- facility.lua (shared) and config.example.lua (reference).
--
--   install <role> [base_url]
--     roles: coordinator | chamber | me | datacenter | all
--     base_url defaults to the sandbox file host below
--
--   e.g.  install chamber
--         wget run http://test.tomttfb.com/install.lua chamber
--
-- No hosting? See INSTALL.md for the pastebin and copy-into-save alternatives.
--

local DEFAULT_BASE = "http://test.tomttfb.com"

local role, base = ...
base = base or DEFAULT_BASE

local ROLES = {
    coordinator = { "coordinator.lua" },
    chamber     = { "chamber.lua", "chamber_rtu.lua" },
    me          = { "me.lua", "me_rtu.lua" },
    datacenter  = { "dc.lua", "dc_rtu.lua" },
}

if not role or not (ROLES[role] or role == "all") then
    print("usage: install <role> [base_url]")
    print("roles: coordinator | chamber | me | datacenter | all")
    print("base_url defaults to " .. DEFAULT_BASE)
    return
end
base = base:gsub("/$", "")

-- build the file list
local files = { "facility.lua", "configure.lua", "config.example.lua" }
local function add(list) for _, f in ipairs(list) do files[#files + 1] = f end end
if role == "all" then
    for _, set in pairs(ROLES) do add(set) end
else
    add(ROLES[role])
end

local failed = 0
for _, f in ipairs(files) do
    write("  " .. f .. " ... ")
    local h = http.get(base .. "/" .. f)
    if h then
        local data = h.readAll(); h.close()
        local out = fs.open(f, "w"); out.write(data); out.close()
        print("ok")
    else
        print("FAILED (" .. base .. "/" .. f .. ")")
        failed = failed + 1
    end
end

print("")
if failed == 0 then
    print("Done. Make sure mimic is installed too, then:")
    print("  cp config.example.lua config.lua  &  edit config.lua")
else
    print(failed .. " file(s) failed - check the base URL and http access.")
end