dofile("config.lua")
p = require("populate")

local function read_players()
--    return {{ email = "noreply@mailinator.com", race = "dwarf",  lang = "de" }}
    local players =  {}
    local input = io.open("newfactions", "r")
    while input do
        local str = input:read("*line")
        if str==nil then break end
        local email, race, lang = str:match("([^ ]*) ([^ ]*) ([^ ]*)")
        if string.char(string.byte(email, 1))~='#' then
            table.insert(players, { race = race, lang = lang, email = email })
        end
    end
    return players
end

local function seed(r, email, race, lang)
    local f = faction.create(email, race, lang)
    local u = unit.create(f, r)
    equip_unit(u, "new_faction")
    equip_unit(u, "first_unit")
    equip_unit(u, "first_" .. race, 7) -- disable old callbacks
    unit.create(f, r, 5):set_skill("mining", 30)
    unit.create(f, r, 5):set_skill("quarrying", 30)
    return f
end

local function dump_selection(sel)
    local best = { score = 0, r = nil }
    local r, score
    for _, r in ipairs(sel) do
        score = p.score(r)
        if score > best.score then
            best.r = r
            best.score = score
        end
        print(score, r, r.terrain)
    end
    return best
end

players = read_players()
local peasants = 20000
local trees = 1000
local turn = get_turn()
local sel
if #players > 0 then
    eressea.read_game(("%d.dat"):format(turn))
    sel = p.select(regions(), peasants, trees)
    if #sel > 0 then
        local best = dump_selection(sel)
        print("finest region, " .. best.score .. " points: " .. tostring(best.r))
    end
end
math.randomseed(os.time())

local newbs = {}
local per_region = 2
local num_seeded = 2
local start = nil
for _, p in ipairs(players) do
    if num_seeded == per_region then
        while not start or start.units() do
            local index = math.random(#sel)
            start = sel[index]
        end
        num_seeded = 0
    end
    local dupe = false
    for f in factions() do
        if f.email==p.email then
            print("seed: duplicate email " .. p.email .. " already used by faction " .. tostring(f))
            dupe = true
            break
        end
    end
    if not dupe then
        num_seeded = num_seeded + 1
        f = seed(start, p.email, p.race or "human", p.lang or "de")
        print("new faction ".. tostring(f) .. " starts in ".. tostring(start))
        table.insert(newbs, f)
    end
end

if #newbs > 0 then
    init_reports()
    for _, f in ipairs(newbs) do
        write_report(f)
    end
    eressea.write_game(("%d.dat.new"):format(turn))
end