package routes

import (
	"fmt"
	"github.com/LazyBachelor/LazyPM/internal/models"
	"github.com/LazyBachelor/LazyPM/pkg/web/components"
)

type BoardViewProps struct {
	Issues        []*models.Issue
	BacklogIssues []*models.Issue
	SprintIssues  []*models.Issue
	CurrentSprint int
	Sprints       []int
	BaseURL       string
	QueryParam    string
	EmptyText     string
}

templ BoardView(props BoardViewProps) {
	@BaseLayout() {
		@BoardViewContent(props)
	}
}

templ BoardViewContent(props BoardViewProps) {
	<div class="flex flex-col h-full">
		<div class="flex flex-col border-b border-base-200">
			<div class="flex p-2 justify-between items-center gap-2">
				<div class="flex gap-2">
					<div class="join">
						<button
							class="btn btn-sm join-item"
							hx-get="/"
							hx-target="main"
							hx-swap="innerHTML"
							hx-push-url="true"
						>List</button>
						<button class="btn btn-sm join-item btn-active btn-primary">Board</button>
					</div>
					<button
						class="btn btn-primary btn-sm"
						hx-get="/issues/create?from=board"
						hx-target="#modal-container"
						hx-swap="innerHTML"
					>
						New Issue
					</button>
				</div>
				<div class="flex items-center gap-2">
					<span class="text-sm font-medium">Sprint:</span>
					<select
						class="select select-sm select-bordered"
						hx-get="/board/sprint"
						hx-target="#board-columns-container"
						hx-swap="innerHTML"
						name="sprint"
					>
						if len(props.Sprints) == 0 {
							<option value="0">No Sprints</option>
						}
						for _, sprintNum := range props.Sprints {
							if sprintNum == props.CurrentSprint {
								<option value={ fmt.Sprintf("%d", sprintNum) } selected>{ fmt.Sprintf("Sprint %d", sprintNum) }</option>
							} else {
								<option value={ fmt.Sprintf("%d", sprintNum) }>{ fmt.Sprintf("Sprint %d", sprintNum) }</option>
							}
						}
					</select>
					<button
						class="btn btn-sm btn-outline"
						hx-post="/board/sprint/new"
						hx-target="#board-columns-container"
						hx-swap="innerHTML"
					>
						New Sprint
					</button>
				</div>
			</div>
		</div>
		<div id="board-columns-container" class="flex-1 overflow-x-auto p-4">
			@BoardColumns(props)
		</div>
	</div>
}

templ BoardColumns(props BoardViewProps) {
	{{
		backlogIssues := props.BacklogIssues

		todoIssues := []*models.Issue{}
		inProgressIssues := []*models.Issue{}
		blockedIssues := []*models.Issue{}
		doneIssues := []*models.Issue{}

		for _, issue := range props.SprintIssues {
			switch issue.Status {
			case "open":
				todoIssues = append(todoIssues, issue)
			case "in_progress":
				inProgressIssues = append(inProgressIssues, issue)
			case "blocked":
				blockedIssues = append(blockedIssues, issue)
			case "closed":
				doneIssues = append(doneIssues, issue)
			}
		}

		sprintName := "No Sprint"
		if props.CurrentSprint > 0 {
			sprintName = fmt.Sprintf("Sprint %d", props.CurrentSprint)
		}
	}}
	<div class="flex gap-4 h-full" id="board-columns">
		@BoardColumn("Backlog", "backlog", backlogIssues, "badge-ghost", "")
		@BoardColumn(fmt.Sprintf("%s - To Do", sprintName), "todo", todoIssues, "badge-info", sprintName)
		@BoardColumn(fmt.Sprintf("%s - In Progress", sprintName), "in_progress", inProgressIssues, "badge-warning", sprintName)
		@BoardColumn(fmt.Sprintf("%s - Blocked", sprintName), "blocked", blockedIssues, "badge-error", sprintName)
		@BoardColumn(fmt.Sprintf("%s - Done", sprintName), "done", doneIssues, "badge-success", sprintName)
	</div>
}

templ BoardColumn(title string, status string, issues []*models.Issue, badgeClass string, sprintName string) {
	<div class="flex-1 min-w-80 flex flex-col board-column" data-status={ status } data-sprint={ sprintName }>
		<div class="flex items-center gap-2 mb-4">
			<h2 class="text-lg font-semibold">{ title }</h2>
			<span class={ "badge", badgeClass }>{ fmt.Sprintf("%d", len(issues)) }</span>
		</div>
		<div class="flex-1 space-y-2 bg-base-200 rounded-lg p-2 min-h-30 column-drop-zone" data-status={ status } data-sprint={ sprintName }>
			if len(issues) == 0 {
				<div class="text-center text-base-content/50 py-4 empty-drop-hint">Drop issues here</div>
			}
			for _, issue := range issues {
				@BoardCard(issue)
			}
		</div>
	</div>
}

templ BoardCard(issue *models.Issue) {
	<div
		class="card bg-base-100 shadow-sm hover:shadow-md transition-shadow cursor-grab active:cursor-grabbing board-card"
		draggable="true"
		data-issue-id={ issue.ID }
	>
		<div class="card-body p-4">
			<div class="flex items-start justify-between gap-2">
				<h3 class="card-title text-sm font-medium line-clamp-2 flex-1">{ issue.Title }</h3>
				<div class="flex gap-1 shrink-0">
				<a
					class="btn btn-ghost btn-xs"
					href={ "/issues/" + issue.ID }
					title="View details"
				>
					<svg xmlns="http://www.w3.org/2000/svg" class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
						<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"></path>
					</svg>
				</a>
					<button
						class="btn btn-ghost btn-xs"
						hx-get={ "/issues/" + issue.ID + "/edit?from=board" }
						hx-target="#modal-container"
						hx-swap="innerHTML"
						title="Edit issue"
					>
						<svg xmlns="http://www.w3.org/2000/svg" class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
							<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path>
						</svg>
					</button>
				</div>
			</div>
			<div class="flex items-center gap-2 mt-2">
				<span class="badge badge-sm badge-ghost font-mono">{ issue.ID }</span>
				@components.TypeBadge(issue.IssueType)
				@components.PriorityBadge(issue.Priority)
			</div>
			if issue.Description != "" {
				<p class="text-sm text-base-content/70 line-clamp-2 mt-2">{ issue.Description }</p>
			}
		</div>
	</div>
}