extends "res://addons/gut/test.gd"

const ContentDB = preload("res://scripts/content/content_db.gd")
const NewGame = preload("res://scripts/newgame/new_game.gd")

var world


func before_each():
	world = ContentDB.new()
	world.load_from(ContentDB.default_content_root())


func _deserter() -> Dictionary:
	return ContentDB.load_json(ContentDB.origin_path("deserter"))


func _draft(race := "human", calling := "sellsword") -> CreationDraft:
	var d := CreationDraft.new()
	d.character_seed = 8675309
	d.set_race(race)
	d.set_calling(calling)
	d.name = "Aldric"
	return d


func test_calling_detail_reads_the_table_rather_than_repeating_it():
	# The guard that fails if anyone types "d8" into a string literal. If someone
	# retunes the Cutpurse's hit die, this test keeps passing and the CARD FOLLOWS —
	# which is the whole point. A hardcoded line would go red here.
	#
	# The talent is asserted through the DERIVED phrase ("talent second wind"), not
	# the raw id ("second_wind") the card used to print — but it is still read from
	# Callings.talent() at assert time, so hardcoding a talent into the format string
	# still goes red (traps.md #7: anchor to the full derived phrase).
	for id in Callings.IDS:
		var line := CreationCopy.calling_detail(id)
		assert_string_contains(line, "d%d" % Callings.hit_die(id))
		assert_string_contains(line, CreationCopy.armor_word(id))
		assert_string_contains(line, "talent %s" % CreationCopy.talent_word(id))
		assert_string_contains(line, "picks %d skills" % Callings.skill_count(id))
		for s in Callings.saves(id):
			assert_string_contains(line, s.to_upper())


func test_the_talent_is_humanised_and_no_card_line_shows_a_raw_id():
	# The player read "talent second_wind" off the Sellsword's card. Four of the seven
	# talents carry an underscore — the card printed the ID.
	assert_eq(CreationCopy.talent_word("sellsword"), "second wind")
	assert_eq(CreationCopy.talent_word("cutpurse"), "backstab", "an underscore-free talent is untouched")

	var underscored := 0
	for id in Callings.IDS:
		if Callings.talent(id).contains("_"):
			underscored += 1
		assert_false(CreationCopy.calling_detail(id).contains("_"),
			"%s's card line shows a raw snake_case id: %s" % [id, CreationCopy.calling_detail(id)])
	assert_eq(underscored, 4,
		"four talents carry an underscore — if that ever hits zero this guard stops guarding")


func test_casters_show_a_pool_and_martials_show_cooldowns():
	assert_string_contains(CreationCopy.calling_detail("hedge_mage"), "MP (MAG)")
	assert_string_contains(CreationCopy.calling_detail("bonesetter"), "MP (FTH)")
	assert_string_contains(CreationCopy.calling_detail("sellsword"), "cooldowns")
	assert_false(CreationCopy.calling_detail("sellsword").contains("MP"))


func test_race_trait_lines_are_derived_from_the_race_table():
	assert_string_contains(CreationCopy.race_trait("human"), "every save")
	assert_string_contains(CreationCopy.race_trait("human"), "skill of choice")
	assert_string_contains(CreationCopy.race_trait("elf"), "Perception")
	assert_string_contains(CreationCopy.race_trait("elf"), "Nightsight")
	assert_string_contains(CreationCopy.race_trait("dwarf"), "Poison")
	assert_string_contains(CreationCopy.race_trait("dwarf"), "Nightsight")
	assert_string_contains(CreationCopy.race_trait("beastfolk"), "Claws")
	assert_string_contains(CreationCopy.race_trait("beastfolk"), "Keen scent")


func test_every_race_has_a_non_empty_trait_line():
	for id in Races.IDS:
		assert_ne(CreationCopy.race_trait(id).strip_edges(), "", "%s has no trait line" % id)


func test_skill_labels_are_human_readable():
	assert_eq(CreationCopy.skill_label("sleight_of_hand"), "sleight of hand")
	assert_eq(CreationCopy.skill_label("faith_lore"), "faith lore")
	assert_eq(CreationCopy.skill_label("stealth"), "stealth")


func test_nothing_in_the_copy_mentions_luck():
	# §7 — the player must never be able to CALCULATE that he is cursed.
	for id in Callings.IDS:
		assert_false(CreationCopy.calling_detail(id).to_lower().contains("luck"))
		assert_false(CreationCopy.calling_detail(id).to_lower().contains("lck"))
	for id in Races.IDS:
		assert_false(CreationCopy.race_trait(id).to_lower().contains("luck"))
		assert_false(CreationCopy.race_trait(id).to_lower().contains("lck"))


# ------------------------------------------------------------------- §13: the nag

func test_the_nag_is_authored_copy_not_the_validator_s_grammar():
	# §13. The exact strings a human must be able to judge, pinned. Anchored to the
	# authored phrase itself — asserting only "no underscore" would pass on any
	# string that happens to have none, including a blank one.
	var human := _draft("human", "sellsword")
	human.name = ""
	assert_eq(CreationCopy.error_line("player name is required", human), "name yourself")

	# "sellsword picks 2 skills, got 0" -> the count is DERIVED from the rules table.
	assert_eq(Callings.skill_count("sellsword"), 2, "the sellsword picks 2, or the line below means nothing")
	assert_eq(CreationCopy.error_line("sellsword picks 2 skills, got 0", human),
		"choose two more proficiencies")
	human.toggle_skill("athletics")
	assert_eq(CreationCopy.error_line("sellsword picks 2 skills, got 1", human),
		"choose one more proficiency", "one is singular, and the number is never hardcoded")

	# The same error against a calling that picks FOUR must say four — the proof the
	# number comes from Callings.skill_count and not from a literal "two".
	var thief := _draft("dwarf", "cutpurse")
	assert_eq(Callings.skill_count("cutpurse"), 4, "the cutpurse picks 4, or the line below means nothing")
	assert_eq(CreationCopy.error_line("cutpurse picks 4 skills, got 0", thief),
		"choose four more proficiencies")

	assert_eq(CreationCopy.error_line("human must choose a bonus skill", human),
		"one more proficiency, any of them — take it")


func test_an_unmapped_error_still_speaks_in_voice():
	# §13: "write fallbacks as content, not as error handling." An error nobody
	# anticipated (broken content; a spend the screen cannot produce) must never put
	# the raw string on the label, and must never blank it either.
	var d := _draft()
	for raw in ["unresolved ref: item:ghost_blade", "seed is required and must be an integer",
			"spend exceeds the pool of 3 (got 5)", "cannot spend on 'lck' — not an attribute"]:
		var line := CreationCopy.error_line(raw, d)
		assert_eq(line, CreationCopy.UNSPOKEN, "an unmapped error degrades to the authored fallback: %s" % raw)
		assert_ne(line, raw)
	assert_ne(CreationCopy.UNSPOKEN.strip_edges(), "", "the fallback is CONTENT — it is never blank")
	assert_false(CreationCopy.UNSPOKEN.contains("_"))


func test_no_error_the_validator_can_raise_reaches_the_player_raw():
	# Sweep EVERY error NewGame.validate actually produces for a draft the screen can
	# be driven into (plus the hostile shapes only a saga could hand it), and assert
	# the player never sees the id, the underscore, or the validator's grammar.
	var d := _draft()
	var hostiles: Array = [
		{"name": "", "skills": [], "bonus_skill": ""},               # nameless, unpicked
		{"skills": ["athletics"]},                                   # too few
		{"skills": ["athletics", "athletics"]},                      # duplicate
		{"skills": ["athletics", "sorcery"]},                        # not in the pool
		{"race_id": "elf", "skills": ["athletics", "perception"], "bonus_skill": ""},  # granted already
		{"bonus_skill": ""},                                         # human, no bonus
		{"bonus_skill": "athletics", "skills": ["athletics", "endurance"]},  # bonus == a pick
		{"bonus_skill": "swimming"},                                 # no such skill
		{"race_id": "dwarf", "bonus_skill": "stealth"},              # dwarf gets none
		{"race_id": "orc"}, {"calling_id": "paladin"},               # off the tables
		{"seed": "8675309"}, {"spend": {"lck": 3}}, {"spend": {"str": 9}},
	]
	var base := {
		"name": "Aldric", "race_id": "human", "calling_id": "sellsword", "seed": 8675309,
		"spend": {}, "skills": ["athletics", "endurance"], "bonus_skill": "perception",
	}

	var seen := 0
	for h in hostiles:
		var creation := base.duplicate(true)
		for k in h:
			creation[k] = h[k]
		var errors: Array = NewGame.validate(_deserter(), world, creation)
		assert_gt(errors.size(), 0, "hostile creation %s must actually be invalid, or it guards nothing" % str(h))
		for e in errors:
			seen += 1
			var line: String = CreationCopy.error_line(str(e), d)
			assert_ne(line.strip_edges(), "", "'%s' put a BLANK line on the label" % e)
			assert_ne(line, str(e), "'%s' reached the player raw" % e)
			assert_false(line.contains("_"), "'%s' put a snake_case id on the label: %s" % [e, line])
			assert_false(line.contains("got "), "'%s' put the validator's grammar on the label: %s" % [e, line])
	assert_gt(seen, 12, "the sweep must actually reach a spread of errors, not one or two")