Implement ticket statuses

app/Models/BoardColumn.php

@@ -8,6 +8,7 @@ use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\HasManyThrough;
 
 #[Fillable(['name', 'position', 'project_id'])]
 class BoardColumn extends Model
@@ -20,9 +21,19 @@ class BoardColumn extends Model
         return $this->belongsTo(Project::class);
     }
 
-    public function tickets(): HasMany
+    public function ticketStatuses(): HasMany
     {
-        return $this->hasMany(Ticket::class)
-            ->orderByDesc('sequence_number');
+        return $this->hasMany(TicketStatus::class)
+            ->orderBy('position');
+    }
+
+    public function tickets(): HasManyThrough
+    {
+        return $this->hasManyThrough(
+            Ticket::class,
+            TicketStatus::class,
+            'board_column_id',
+            'ticket_status_id',
+        )->orderByDesc('tickets.sequence_number');
     }
 }

app/Models/Project.php

@@ -68,6 +68,13 @@ class Project extends Model
             ->orderBy('position');
     }
 
+    public function ticketStatuses(): HasMany
+    {
+        return $this->hasMany(TicketStatus::class)
+            ->orderBy('board_column_id')
+            ->orderBy('position');
+    }
+
     public function ticketTypes(): HasMany
     {
         return $this->hasMany(TicketType::class)

app/Models/Ticket.php

@@ -13,7 +13,6 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
     'acceptance_criteria',
     'assignee_user_id',
     'author_user_id',
-    'board_column_id',
     'blocked_comment',
     'description',
     'is_blocked',
@@ -22,6 +21,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
     'sequence_number',
     'ticket_key',
     'ticket_priority_id',
+    'ticket_status_id',
     'ticket_type_id',
     'title',
     'story_points',
@@ -41,11 +41,6 @@ class Ticket extends Model
         ];
     }
 
-    public function boardColumn(): BelongsTo
-    {
-        return $this->belongsTo(BoardColumn::class);
-    }
-
     public function assignee(): BelongsTo
     {
         return $this->belongsTo(User::class, 'assignee_user_id');
@@ -95,6 +90,11 @@ class Ticket extends Model
         return $this->belongsTo(TicketPriority::class);
     }
 
+    public function ticketStatus(): BelongsTo
+    {
+        return $this->belongsTo(TicketStatus::class);
+    }
+
     public function ticketType(): BelongsTo
     {
         return $this->belongsTo(TicketType::class);

app/Models/TicketStatus.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Models;
+
+use Database\Factories\TicketStatusFactory;
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Support\Str;
+
+#[Fillable(['board_column_id', 'name', 'position', 'project_id', 'slug'])]
+class TicketStatus extends Model
+{
+    /** @use HasFactory<TicketStatusFactory> */
+    use HasFactory;
+
+    protected static function booted(): void
+    {
+        static::saving(function (self $ticketStatus): void {
+            $ticketStatus->slug = Str::slug($ticketStatus->name);
+        });
+
+        static::created(function (self $ticketStatus): void {
+            $statusIds = self::query()
+                ->where('project_id', $ticketStatus->project_id)
+                ->pluck('id');
+
+            $ticketStatus->allowedTargetStatuses()->syncWithoutDetaching($statusIds);
+
+            self::query()
+                ->where('project_id', $ticketStatus->project_id)
+                ->whereKeyNot($ticketStatus->id)
+                ->get()
+                ->each(fn (self $existingStatus): array => $existingStatus
+                    ->allowedTargetStatuses()
+                    ->syncWithoutDetaching([$ticketStatus->id]));
+        });
+    }
+
+    public function allowedSourceStatuses(): BelongsToMany
+    {
+        return $this->belongsToMany(
+            self::class,
+            'ticket_status_transitions',
+            'to_ticket_status_id',
+            'from_ticket_status_id',
+        )
+            ->orderBy('board_column_id')
+            ->orderBy('position')
+            ->withTimestamps();
+    }
+
+    public function allowedTargetStatuses(): BelongsToMany
+    {
+        return $this->belongsToMany(
+            self::class,
+            'ticket_status_transitions',
+            'from_ticket_status_id',
+            'to_ticket_status_id',
+        )
+            ->orderBy('board_column_id')
+            ->orderBy('position')
+            ->withTimestamps();
+    }
+
+    public function boardColumn(): BelongsTo
+    {
+        return $this->belongsTo(BoardColumn::class);
+    }
+
+    public function project(): BelongsTo
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function tickets(): HasMany
+    {
+        return $this->hasMany(Ticket::class)
+            ->orderByDesc('sequence_number');
+    }
+}