package game

import (
	"fmt"
	"strings"

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

// taskWorkVerb returns the flavor verb for working on a task worksite. Designers
// set `verb:` on the mob (e.g. "survey", "prospect", "build"); the default is
// "work on". The player-facing command is always `work` (or `attack`).
func taskWorkVerb(mob *world.MobInstance) string {
	if mob != nil && mob.Verb != "" {
		return mob.Verb
	}
	return "work on"
}

// progressBar renders a bar that fills as progress rises toward max — the
// inverse of hpBar. It is used for task worksites whose internal HP drains to 0
// to complete the work (progress = MaxHP - HP).
func (g *Game) progressBar(sess *net.Session, progress, max int) string {
	if max <= 0 {
		max = 1
	}
	if progress < 0 {
		progress = 0
	}
	if progress > max {
		progress = max
	}

	pct := float64(progress) / float64(max) * 100.0
	var fgColor int
	switch {
	case pct >= 70:
		fgColor = 82
	case pct >= 40:
		fgColor = 220
	default:
		fgColor = 39
	}

	unicode := sess.Player != nil && sess.Player.OptionBool("unicode")
	style := &BarStyle{FilledColor: fgColor, EmptyColor: 238, EmptyDim: true}
	bar := RenderColoredBar(progress, max, 10, unicode, style, g.colorMode(sess))
	return "[" + bar + "]"
}

// writeTaskProgress prints the per-tick progress line for a task worksite,
// mirroring the combat hit line but framed as labor instead of damage.
func (g *Game) writeTaskProgress(sess *net.Session, p *player.Player, mob *world.MobInstance, dmg int, gains []xpGain) {
	progress := mob.MaxHP - mob.HP
	if progress < 0 {
		progress = 0
	}
	pct := 0
	if mob.MaxHP > 0 {
		pct = progress * 100 / mob.MaxHP
	}

	noun := mob.ProgressNoun
	if noun == "" {
		noun = "work"
	}

	prefix := fmt.Sprintf("You advance the %s on %s.", noun, g.colorize(sess, "mob", mobDisplayName(mob, true)))
	line := fmt.Sprintf("%s %s %3d%%", prefix, g.progressBar(sess, progress, mob.MaxHP), pct)

	if p.OptionBool("xp_drops") && len(gains) > 0 {
		var parts []string
		for _, gain := range gains {
			parts = append(parts, fmt.Sprintf("+%dxp %s", gain.XP, player.SkillAbbr[player.SkillName(gain.Skill)]))
		}
		line += g.colorize(sess, "xp", " ("+strings.Join(parts, ", ")+")")
	}
	sess.WriteLine(line)
}