package main

import (
	"fmt"
	"strings"

	"git.sunturtle.xyz/zephyr/horse/horse"
	"github.com/disgoorg/disgo/discord"
)

func RenderSkill(s horse.Skill) discord.ContainerComponent {
	skilltype := discord.TextDisplayComponent{
		ID:      4,
		Content: "Skill Issue",
	}
	r := discord.ContainerComponent{
		ID: 1, // specify ids so we guarantee we don't get collisions with related skill buttons
		Components: []discord.ContainerSubComponent{
			discord.SectionComponent{
				ID: 2,
				Components: []discord.SectionSubComponent{
					discord.TextDisplayComponent{
						ID:      3,
						Content: "## " + s.Name + "\n" + s.Description,
					},
					&skilltype, // doing something evil :)
				},
				Accessory: discord.NewThumbnail(fmt.Sprintf("https://gametora.com/images/umamusume/skill_icons/utx_ico_skill_%d.png", s.IconID)),
			},
		},
	}
	switch {
	case s.Rarity == 3, s.Rarity == 4, s.Rarity == 5:
		// unique of various star levels
		r.AccentColor = 0xaca4d4
		skilltype.Content = "Unique Skill"
	case s.Rarity == 2:
		// rare (gold)
		r.AccentColor = 0xd7c25b
		skilltype.Content = "Rare Skill"
	case s.GroupRate == -1:
		// negative (purple) skill
		r.AccentColor = 0x9151d4
		skilltype.Content = "Negative Skill"
	case !s.WitCheck:
		// should be passive (green)
		r.AccentColor = 0x66ae1c
		skilltype.Content = "Passive Skill"
	// TODO(zeph): debuff (red)
	case s.Rarity == 1:
		// common (white)
		r.AccentColor = 0xcccccc
		skilltype.Content = "Common Skill"
	}
	r.Components = append(r.Components, discord.SeparatorComponent{ID: 5, Spacing: discord.SeparatorSpacingSizeSmall})
	text := make([]string, 0, 3)
	abils := make([]string, 0, 3)
	for i, act := range s.Activations {
		text, abils = text[:0], abils[:0]
		if act.Precondition != "" {
			text = append(text, "Precondition: "+formatCondition(act.Precondition))
		}
		text = append(text, "Condition: "+formatCondition(act.Condition))
		var t string
		switch {
		case act.Duration < 0:
			// passive; do nothing
		case act.Duration == 0:
			t = "Instantaneous "
		case act.Duration >= 500e4:
			t = "Permanent "
		default:
			t = act.Duration.String() + "s "
		}
		for _, a := range act.Abilities {
			abils = append(abils, a.String())
		}
		t += strings.Join(abils, ", ")
		if act.Cooldown < 500e4 {
			t += " on " + act.Cooldown.String() + "s cooldown"
		}
		text = append(text, t)
		r.Components = append(r.Components, discord.TextDisplayComponent{
			ID:      10 + i,
			Content: strings.Join(text, "\n"),
		})
	}
	r.Components = append(r.Components, discord.SeparatorComponent{ID: 50, Spacing: discord.SeparatorSpacingSizeSmall})
	r.Components = append(r.Components, discord.TextDisplayComponent{
		ID:      51,
		Content: fmt.Sprintf("SP cost %d. Grade value %d.", s.SPCost, s.GradeValue),
	})
	// TODO(zeph): related skills, use a row of buttons with skill numbers for the ids and edit the message when clicked?
	return r
}

func formatCondition(s string) string {
	s = strings.ReplaceAll(s, "&", " & ")
	if strings.ContainsRune(s, '@') {
		return "```\n" + strings.ReplaceAll(s, "@", "\n@\n") + "```"
	}
	return "`" + s + "`"
}

// TODO(zeph): autocomplete
// if we want to backgroundify construction of an autocomplete map,
// use sync.OnceValue and launch a goroutine in main to get the value and discard it