local tcname = 'tests.shared.spells'
local lunit = require('lunit')
if _VERSION >= 'Lua 5.2' then
  _ENV = module(tcname, 'seeall')
else
  module(tcname, lunit.testcase, package.seeall)
end

function setup()
    eressea.free_game()
    eressea.settings.set("nmr.removenewbie", "0")
    eressea.settings.set("nmr.timeout", "0")
    eressea.settings.set("NewbieImmunity", "0")
    eressea.settings.set("rules.food.flags", "4")
    eressea.settings.set("rules.encounters", "0")
    eressea.settings.set("magic.fumble.enable", "0")
    eressea.settings.set("magic.regeneration.enable", "0")
    eressea.settings.set("magic.resist.enable", "0")
end

function test_create_bogus()
    local r = region.create(0, 0, "plain")
    local f = faction.create("human")
    local u = unit.create(f, r, 1)
    u.race = "elf"
    u:set_skill("magic", 10)
    u.magic = 'gwyrrd'
    u:clear_orders()
    u:add_order("ZAUBERE 'Erschaffe Katastrophe'")
    process_orders()
    assert_equal(1, f:count_msg_type('error173'), 'spell not found')
end

function test_create_roi()
    local r = region.create(0, 0, "plain")
    local f = faction.create("human")
    local u = unit.create(f, r, 1)
    u.race = "elf"
    u:set_skill("magic", 10)
    u.magic = 'gwyrrd'
    u.aura = 100
    u:add_item("money", 3000)
    u:add_spell("create_roi")
    u:clear_orders()
    u:add_order("ZAUBERE 'Erschaffe einen Ring der Unsichtbarkeit'")
    local amax = u.aura_max
    process_orders()
    assert_equal(1, u:get_item("roi"))
    assert_equal(50, u.aura)
    assert_equal(amax - 1, u.aura_max)
end

function test_create_aots()
    local r = region.create(0, 0, "plain")
    local f = faction.create("human")
    local u = unit.create(f, r, 1)
    u.race = "elf"
    u:set_skill("magic", 10)
    u.magic = 'gwyrrd'
    u.aura = 100
    u:add_item("money", 3000)
    u:add_spell("create_aots")
    u:clear_orders()
    u:add_order("ZAUBERE 'Erschaffe ein Amulett des wahren Sehens'")
    local amax = u.aura_max
    process_orders()
    assert_equal(1, u:get_item("aots"))
    assert_equal(50, u.aura)
    assert_equal(amax - 1, u.aura_max)
end

function test_create_dreameye()
    local r = region.create(0, 0, "plain")
    local f = faction.create("human")
    local u = unit.create(f, r, 1)
    u.race = "elf"
    u:set_skill("magic", 10)
    u.magic = 'gwyrrd'
    u.aura = 100
    u:add_item("dragonhead", 1)
    u:add_spell("create_dreameye")
    u:clear_orders()
    u:add_order("ZAUBERE 'Erschaffe ein Traumauge'")
    local amax = u.aura_max
    process_orders()
    assert_equal(1, u:get_item("dreameye"))
    assert_equal(100, u.aura)
    assert_equal(amax - 5, u.aura_max)
end

function test_appeasement_can_move()
    local u1, u2, r1, r2, uno
    r1 = region.create(0, 0, 'plain')
    r2 = region.create(1, 0, 'plain')
    u2 = unit.create(faction.create('human'), r1, 1)
    u2.race = 'elf'
    u2.name = 'Angsthase'
    u2.magic = 'gwyrrd'
    u2:set_skill('magic', 5)
    u2.aura = 10
    u2:add_spell('appeasement')
    u2:add_order('NACH O')
    u2:add_order('KAMPFZAUBER STUFE 1 Friedenslied')
    uno = u2.id
    u1 = unit.create(faction.create('human'), r1, 1)
    u1:set_skill('polearm', 5)
    u1:add_order('ATTACKIERE ' .. itoa36(uno))
    process_orders()
    u2 = get_unit(uno)
    assert_not_nil(u2)
    assert_equal(r2, u2.region)
    assert_equal(5, u2.status)
end

function test_appeasement_break_guard()
    local u1, u2, r1, r2, uno
    r1 = region.create(0, 0, 'plain')
    r2 = region.create(1, 0, 'plain')
    u2 = unit.create(faction.create('human'), r1, 1)
    u2.race = 'elf'
    u2.name = 'Angsthase'
    u2.magic = 'gwyrrd'
    u2.guard = true
    u2.status = 1
    u2:set_skill('magic', 5)
    u2.aura = 10
    u2:add_spell('appeasement')
    u2:add_order('BEWACHE')
    u2:add_order('KAMPFZAUBER STUFE 1 Friedenslied')
    uno = u2.id
    u1 = unit.create(faction.create('human'), r1, 1)
    u1:set_skill('polearm', 5)
    u1:add_order('ATTACKIERE ' .. itoa36(uno))
    process_orders()
    u2 = get_unit(uno)
    assert_not_nil(u2)
    assert_equal(r1, u2.region)
    assert_equal(5, u2.status)
    assert_equal(false, u2.guard)
end

local function create_cp_mage(f, r)
  local u2 = unit.create(f, r, 1)
  u2.race = 'human'
  u2.magic = 'cerddor'
  u2:set_skill('magic', 20)
  u2.aura = 100
  u2:add_spell('song_of_confusion')
  u2:add_spell('frighten')
  u2.status = 3
  return u2
end

local function create_cp_front(f, r)
  local u2 = unit.create(f, r, 1000)
  u2:set_skill('melee', 20)
  u2:set_skill('stamina', 3)
  u2:add_item('axe', u2.number)
  u2:add_item('plate', u2.number)
  u2:add_item('shield', u2.number)
  u2.hp = u2.hp_max * u2.number
  return u2
end

function test_confusion_and_panic()
  f = faction.create('demon', "confusion@eressea.de", "de")
  f2 = faction.create('demon')
  for y = 1, 10 do
    local u1, u2, u3, u4, r
    r = region.create(0, 2*y, 'plain')
    u1 = create_cp_front(f, r)
    u2 = create_cp_mage(f, r)
    u3 = create_cp_mage(f, r)
    u2:add_order('KAMPFZAUBER STUFE 10 "Gesang der Angst"')
    u3:add_order('KAMPFZAUBER STUFE 10 "Gesang der Verwirrung"')
    create_cp_mage(f, r)

    local u4 = create_cp_front(f2, r)
    create_cp_mage(f2, r)
    create_cp_mage(f2, r)
    create_cp_mage(f2, r)

    for ux in r.units do
      for uy in r.units do
        if ux.faction ~= uy.faction then
          ux:add_order("ATTACKIERE " .. itoa36(uy.id))
        end
      end
    end
  end
  for i = 1,10 do
    process_orders()
  end

  -- should not produce "select_enemies has a bug"
--  init_reports()
--  write_reports()
end