package game

// ItemLore is the per-game item identity state: the randomized appearance
// names and the seven mutable ObjInfo tables (extern.c/init.c).
type ItemLore struct {
	PotColors  [MaxPotions]string // p_colors: colors of the potions
	ScrNames   [MaxScrolls]string // s_names: names of the scrolls
	RingStones [MaxRings]string   // r_stones: stone settings of the rings
	WandMade   [MaxSticks]string  // ws_made: what sticks are made of
	WandType   [MaxSticks]string  // ws_type: "wand" or "staff"

	Things  [NumThings]ObjInfo
	Potions [MaxPotions]ObjInfo
	Scrolls [MaxScrolls]ObjInfo
	Rings   [MaxRings]ObjInfo
	Sticks  [MaxSticks]ObjInfo
	Weapons [MaxWeapons + 1]ObjInfo
	Armors  [MaxArmors]ObjInfo

	Group int // group number for the next stack of missiles (weapons.c `group`)
}

// Options are the user-settable game options (options.c optlist).
type Options struct {
	Terse      bool // terse: shorter messages
	FightFlush bool // flush: flush typeahead during battle
	Jump       bool // jump: show position only at end of run
	SeeFloor   bool // seefloor: show the lamp-illuminated floor
	PassGo     bool // passgo: follow turnings in passageways
	Tombstone  bool // tombstone: print tombstone when killed
	InvType    int  // inven: inventory style (InvOver/InvSlow/InvClear)
}

// Config carries everything needed to construct a game.
type Config struct {
	Seed      int32  // dungeon number; the caller derives it (time+pid or SEED env)
	Name      string // player name (overridden by ROGUEOPTS name=)
	RogueOpts string // the ROGUEOPTS environment string
	Home      string // home directory (save file default location)
	ScorePath string // scoreboard file; empty disables scoring
	Wizard    bool   // enable debug commands (implies NoScore)
}

// RogueGame is one complete game of Rogue: every piece of state that was a
// global (or file-scope static) in the C sources, plus the terminal it is
// played on. Construct with NewGame, then call Run.
//
// The struct grows with the port; fields appear in the phase that ports the
// code owning them.
type RogueGame struct {
	// identity / RNG
	Rng      *Rng
	Dnum     int    // dungeon number
	Whoami   string // name of player
	Fruit    string // favorite fruit
	Home     string // user's home directory
	FileName string // save file name
	Wizard   bool   // true if allows wizard commands
	NoScore  bool   // was a wizard sometime

	// the world
	Player     Player
	Level      Level
	Depth      int  // C `level`: what level she is on
	MaxDepth   int  // C `max_level`: deepest player has gone
	HasAmulet  bool // C `amulet`: he found the amulet
	SeenStairs bool // have seen the stairs (for lsd)

	// turn/command engine
	Playing   bool // true until he quits
	After     bool // true if we want after daemons
	Again     bool // repeating the last command
	Count     int  // number of times to repeat command
	NoCommand int  // number of turns asleep
	NoMove    int  // number of turns held in place
	Quiet     int  // number of quiet turns
	Running   bool // true if player is running
	RunCh     byte // direction player is running
	DoorStop  bool // stop running when we pass a door
	Firstmove bool // first move after setting door_stop
	MoveOn    bool // next move shouldn't pick up items
	ToDeath   bool // fighting is to the death!
	Kamikaze  bool // to_death really to DEATH
	HasHit    bool // has a "hit" message pending in msg
	MaxHit    int  // max damage done to her in to_death
	Take      byte // thing she is taking
	Delta     Coord
	DirCh     byte
	LastComm  byte
	LastDir   byte
	LLastComm byte
	LLastDir  byte
	LastPick  *Object
	LLastPick *Object

	// daemons/fuses
	Daemons DaemonList

	// UI state (the Screen itself arrives with the UI phase)
	StatMsg     bool  // should status() print as a msg()
	InvDescribe bool  // say which way items are being used
	QComm       bool  // are we executing a 'Q' command?
	InShell     bool  // true if executing a shell
	Oldpos      Coord // position before last look() call
	Oldrp       *Room
	NObjs       int // # items listed in inventory() call

	// options and item identity
	Options Options
	Items   ItemLore

	// scores
	LastScore int
	AllScore  bool
	ScorePath string
}

// NewGame builds a game from cfg, seeds the RNG, and randomizes the item
// appearance tables (the front half of main.c main(); the player roll-up
// and first level arrive with later porting phases).
func NewGame(cfg Config) *RogueGame {
	g := &RogueGame{
		Rng:       &Rng{Seed: cfg.Seed},
		Dnum:      int(cfg.Seed),
		Whoami:    cfg.Name,
		Fruit:     "slime-mold",
		Home:      cfg.Home,
		Wizard:    cfg.Wizard,
		NoScore:   cfg.Wizard,
		Playing:   true,
		Depth:     1,
		ScorePath: cfg.ScorePath,
		LastScore: -1,
	}
	g.Options = Options{
		SeeFloor:  true,
		Tombstone: true,
		InvType:   InvOver,
	}
	g.InvDescribe = true
	g.FileName = cfg.Home + "/rogue.save"
	if cfg.Wizard {
		g.Player.Flags.Set(SeeMonst)
	}
	// TODO(port): parse cfg.RogueOpts once options.go lands.

	g.initProbs() // set up prob tables for objects
	// TODO(port): initPlayer() goes exactly here (RNG order!) once pack.go lands.
	g.initNames()     // set up names of scrolls
	g.initColors()    // set up colors of potions
	g.initStones()    // set up stone settings of rings
	g.initMaterials() // set up materials of wands
	// TODO(port): new level + daemon start-up once their phases land.
	return g
}