package d2datadict

import (
	"log"

	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2txt"
)

// https://d2mods.info/forum/kb/viewarticle?a=162

// SuperUniqueRecord Defines the unique monsters and their properties.
// SuperUnique monsters are boss monsters which always appear at the same places
// and always have the same base special abilities
// with the addition of one or two extra ones per difficulty (Nightmare provides one extra ability, Hell provides two).
// Notable examples are enemies such as Corpsefire, Pindleskin or Nihlathak.
type SuperUniqueRecord struct {

	// id of the SuperUnique Monster. Each SuperUnique Monster must use a different id.
	// It also serves as the string to use in the 'Place' field of MonPreset.txt
	Key string // Superunique

	// Name for this SuperUnique which must be retrieved from a .TBL file
	Name string

	// the base monster type of the SuperUnique, refers to the "Key" field in monstats.go ("ID" column in the MonStats.txt)
	Class string

	// This is the "hardcoded index".
	// Vanilla SuperUniques in the game ranges from 0 to 65. Some of them have some hardcoded stuffs attached.
	// NOTE: It is also possible to create new SuperUniques with hardcoded stuff attached. To do this, you can use a hcIx from 0 to 65.
	// Example A: If you create a new SuperUnique with a hcIdx of 42 (Shenk the Overseer) then whatever its Class,
	// this SuperUnique will have 20 Enslaved as minions (exactly like the vanilla Shenk, and in spite of NOT being Shenk).
	// Example B: If you want a simple new SuperUnique, you must use a hcIdx greater than 65,
	// because greater indexes don't exist in the code and therefore your new boss won't have anything special attached
	HcIdx string

	// This field forces the SuperUnique to use a special set of sounds for attacks, taunts, death etc.
	// The Countess is a clear and noticeable example of this. The MonSound set is taken from MonSounds.txt.
	MonSound string

	// These three fields assign special abilities so SuperUnique monsters such as "Fire Enchanted" or "Stone Skin".
	// These fields refers to the ID's corresponding to the properties in MonUMod.txt.
	// Here is the list of available properties.
	// 0.  None
	// 1.  Inits the random name seed, automatically added to monster, you don't need to add this UMod.
	// 2.  Hit Point bonus which is automatically added to the monster. You don't really need to manually add this UMod
	// 3.  Increases the light radius and picks a random color for it (bugged in v1.10+).
	// 4.  Increases the monster level, resulting in higher damage.
	// 5.  Extra Strong: increases physical damage done by boss.
	// 6.  Extra Fast: faster walk / run and attack speed (Although the increased attack speed isn't added in newer versions . . .)
	// 7.  Cursed: randomly cast Amplify Damage when hitting
	// 8.  Magic Resist: +50% resistance against Elemental attacks (Fire, Cold, Lightning and Poison)
	// 9.  Fire Enchanted: additional fire damage and +50% fire resistance.
	// 10. When killed, release a poisonous cloud, like the Mummies in Act 2.
	// 11. Corpse will spawn little white maggots (like Duriel).
	// 12. Works for Bloodraven only, and seems to have something to do with her Death sequence.
	// 13. Ignore your Armor Class and nearly always hit you.
	// 14. It should add damage to its minions
	// 15. When killed, all his minions die immediately as well.
	// 16. Adds base champion modifiers [color=#0040FF][b](champions only)[/b][/color]
	// 17. Lightning Enchanted: additional lightning damage, +50% lightning resistance and release Charged Bolts when hit.
	// 18. Cold  Enchanted: additional cold damage, +50% cold resistance, and releases a Frost Nova upon death
	// 19. Assigns extra damage to hireling attacks, relic from pre-lod, causes bugged damage.
	// 20. Releases Charged Bolts when hit, like the Scarabs in act 2.
	// 21. Present in the code, but it seems to have no effect.
	// 22. Has to do with quests, but is non-functional for Superuniques which aren´t in relation to a quest.
	// 23. Has a poison aura that poisons you when you're approaching him, adds poison damage to attack.
	// 24. Code present, but untested in v1.10+, does something else now.
	// 25. Mana Burn: steals mana from you and heals itself when hitting. Adds magic resistance.
	// 26. TeleHeal: randomly warps around when attacked and heals itself.
	// 27. Spectral Hit: deals random elemental damage when hitting
	// 28. Stone Skin: +80% physical damage resistance, increases defense
	// 29. Multiple Shots: Ranged attackers shoots several missiles at once.
	// 30. Aura Enchanted: Assigns a random offensive aura (aside from Thorns, Sanctuary and Concentration) to the SuperUnique
	// 31. Explodes in a Corpse Explosion when killed.
	// 32. Explodeswith a fiery flash when killed (Visual effect only).
	// 33. Explode and chills you when killed (like suicide minions). It heavily reduces the Boss' Hit Points
	// 34. Self-resurrect effect for Reanimate Horde, bugged on other units.
	// 35. Shatter into Ice pieces when killed, no corpse remains.
	// 36. Adds physical resistance and reduces movement speed(used for Champions only)
	// 37. Alters champion stats (used for Champions only)
	// 38. Champion cannot be cursed (used for Champions only)
	// 39. Alters champion stats (used for Champions only)
	// 40. Releases a painworm when killed, but display is very buggy.
	// 41. Code present, but has no effect in-game, probably due to bugs
	// 42. Releases a Nova when killed, but display is bugged.
	Mod [3]int

	// These two fields control the Minimum and Maximum amount of minions which will be spawned along with the SuperUnique.
	// If those values differ, the game will roll a random number within the MinGrp and the MaxGrp.
	MinGrp int
	MaxGrp int

	// Boolean indicates if the game is expansion or classic
	IsExpansion bool // named as "EClass" in the SuperUniques.txt

	// This field states whether the SuperUnique will be placed within a radius from his original
	// position(defined by the .ds1 map file), or not.
	// false means that the boss will spawn in a random position within a large radius from its actual
	// position in the .ds1 file,
	// true means it will spawn exactly where expected.
	AutoPosition bool

	// Specifies if this SuperUnique can spawn more than once in the same game.
	// true means it can spawn more than once in the same game, false means it can not.
	Stacks bool

	// Treasure Classes for the 3 Difficulties.
	// These columns list the treasureclass that is valid if this boss is killed and drops something.
	// These fields must contain the values taken from the "TreasureClass" column in TreasureClassEx.txt (Expansion)
	// or TreasureClass (Classic).
	TreasureClassNormal    string
	TreasureClassNightmare string
	TreasureClassHell      string

	// These fields dictate which RandTransform.dat color index the SuperUnique will use respectively in Normal, Nightmare and Hell mode.
	UTransNormal    string
	UTransNightmare string
	UTransHell      string
}

// SuperUniques stores all of the SuperUniqueRecords
//nolint:gochecknoglobals // Currently global by design
var SuperUniques map[string]*SuperUniqueRecord

// LoadSuperUniques loads SuperUniqueRecords from superuniques.txt
func LoadSuperUniques(file []byte) {
	SuperUniques = make(map[string]*SuperUniqueRecord)

	d := d2txt.LoadDataDictionary(file)
	for d.Next() {
		record := &SuperUniqueRecord{
			Key:      d.String("Superunique"),
			Name:     d.String("Name"),
			Class:    d.String("Class"),
			HcIdx:    d.String("hcIdx"),
			MonSound: d.String("MonSound"),
			Mod: [3]int{
				d.Number("Mod1"),
				d.Number("Mod2"),
				d.Number("Mod3"),
			},
			MinGrp:                 d.Number("MinGrp"),
			MaxGrp:                 d.Number("MaxGrp"),
			IsExpansion:            d.Bool("EClass"),
			AutoPosition:           d.Bool("AutoPos"),
			Stacks:                 d.Bool("Stacks"),
			TreasureClassNormal:    d.String("TC"),
			TreasureClassNightmare: d.String("TC(N)"),
			TreasureClassHell:      d.String("TC(H)"),
			UTransNormal:           d.String("Utrans"),
			UTransNightmare:        d.String("Utrans(N)"),
			UTransHell:             d.String("Utrans(H)"),
		}
		SuperUniques[record.Key] = record
	}

	if d.Err != nil {
		panic(d.Err)
	}

	log.Printf("Loaded %d SuperUnique records", len(SuperUniques))
}