package game

import (
	"strings"

	"thehouseoficarus/internal/action"
	"thehouseoficarus/internal/net"
	"thehouseoficarus/internal/player"
	"thehouseoficarus/internal/world"
)

func (g *Game) doConstruct(sess *net.Session, input string) {
	p := sess.Player.(*player.Player)
	g.CancelAction(p)

	allRecipes, err := g.RecipeStore.LoadAll()
	if err != nil {
		sess.WriteLine("Error loading recipes.")
		return
	}

	var constructRecipes []action.RecipeDef
	for _, r := range allRecipes {
		if r.Type != "construction" {
			continue
		}
		if !g.constructRecipeVisible(p, &r) {
			continue
		}
		constructRecipes = append(constructRecipes, r)
	}

	if input != "" {
		g.doConstructWithInput(sess, p, constructRecipes, input)
		return
	}

	lastRecipeID, _ := p.Flags["last_construct"].(string)
	if lastRecipeID != "" {
		for i := range constructRecipes {
			if constructRecipes[i].ID == lastRecipeID {
				r := &constructRecipes[i]
				if g.canDoConstructRecipe(p, r) {
					g.startConstructRecipe(sess, p, r, 0)
					return
				}
				break
			}
		}
	}

	available := g.availableConstructRecipes(p, constructRecipes)
	if len(available) == 0 {
		sess.WriteLine("You don't have any materials to construct.")
		return
	}

	if p.OptionBool("construct_all") && len(available) == 1 {
		g.startConstructRecipe(sess, p, &available[0], 0)
		return
	}

	g.showProductionTable(sess, p, available, "Construction", "construction", "last_construct", "Construct", false)
}

func (g *Game) doConstructWithInput(sess *net.Session, p *player.Player, constructRecipes []action.RecipeDef, input string) {
	qty, productName := parseQty(input)
	productName = strings.TrimSpace(productName)

	var matched []action.RecipeDef
	for _, r := range constructRecipes {
		outDef, _ := g.ItemStore.Load(r.Output)
		name := r.Output
		if outDef != nil {
			name = outDef.Name
		}
		if world.WordPrefixMatch(productName, name) {
			matched = append(matched, r)
		}
	}

	if len(matched) == 0 {
		sess.WriteLine("You can't construct that.")
		return
	}

	var available []action.RecipeDef
	for _, r := range matched {
		if g.canDoConstructRecipe(p, &r) {
			available = append(available, r)
		}
	}

	if len(available) == 0 {
		sess.WriteLine("You don't have the materials or level for that.")
		return
	}

	if len(available) == 1 {
		g.startConstructRecipe(sess, p, &available[0], qty)
		return
	}

	g.showProductionTable(sess, p, available, "Construction", "construction", "last_construct", "Construct", false)
}

func (g *Game) constructRecipeVisible(p *player.Player, r *action.RecipeDef) bool {
	if len(r.Station) > 0 {
		stID, _ := g.findStation(p.RoomID, r.Station)
		if stID == "" {
			return false
		}
	}
	if r.Tool != "" && !g.hasToolType(p, r.Tool) {
		return false
	}
	return true
}

func (g *Game) canDoConstructRecipe(p *player.Player, r *action.RecipeDef) bool {
	if p.Level(player.Construction) < r.Level {
		return false
	}
	if !r.HasAllItemsQty(p.CountItem) {
		return false
	}
	if len(r.Station) > 0 {
		stID, _ := g.findStation(p.RoomID, r.Station)
		if stID == "" {
			return false
		}
	}
	if r.Tool != "" && !g.hasToolType(p, r.Tool) {
		return false
	}
	return true
}

func (g *Game) availableConstructRecipes(p *player.Player, allConstruct []action.RecipeDef) []action.RecipeDef {
	var result []action.RecipeDef
	for _, r := range allConstruct {
		if r.HasAllItemsQty(p.CountItem) {
			result = append(result, r)
		}
	}
	return result
}

func (g *Game) startConstructRecipe(sess *net.Session, p *player.Player, recipe *action.RecipeDef, count int) {
	if p.Flags == nil {
		p.Flags = make(map[string]any)
	}
	p.Flags["last_construct"] = recipe.ID
	g.AccountStore.SaveCharacter(p)

	g.startProductionFromRecipe(sess, p, recipe, count)
}