<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    public function up(): void
    {
        Schema::create('demands', function (Blueprint $table) {
            $table->id();
            $table->foreignId('teacher_id')
                ->nullable()
                ->constrained('teachers')
                ->nullOnDelete();
            $table->foreignId('type_dict_item_id')
                ->constrained('dict_items')
                ->restrictOnDelete()
                ->comment('需求类型，字典 demand_type');
            $table->foreignId('status_dict_item_id')
                ->constrained('dict_items')
                ->restrictOnDelete()
                ->comment('处理状态，字典 demand_status');
            $table->string('title', 255);
            $table->text('content')->comment('需求描述');
            $table->string('contact_name', 64)->nullable()->comment('提交人/姓名');
            $table->string('company', 128)->nullable()->comment('公司');
            $table->timestamp('submitted_at')->nullable();
            $table->unsignedBigInteger('miniapp_user_id')->nullable()->comment('小程序用户，预留');
            $table->timestamps();
            $table->softDeletes();
            $table->index(['type_dict_item_id', 'status_dict_item_id']);
            $table->index(['teacher_id', 'submitted_at']);
        });

        Schema::create('demand_handle_logs', function (Blueprint $table) {
            $table->id();
            $table->foreignId('demand_id')->constrained('demands')->cascadeOnDelete();
            $table->foreignId('admin_user_id')
                ->nullable()
                ->constrained('admin_users')
                ->nullOnDelete();
            $table->foreignId('status_dict_item_id')
                ->constrained('dict_items')
                ->restrictOnDelete()
                ->comment('本次处理后的状态，字典 demand_status');
            $table->text('content')->comment('跟进内容');
            $table->string('next_plan', 255)->nullable()->comment('下次跟进计划');
            $table->date('next_follow_date')->nullable();
            $table->date('handled_at')->comment('跟进日期');
            $table->timestamps();
            $table->index(['demand_id', 'handled_at']);
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('demand_handle_logs');
        Schema::dropIfExists('demands');
    }
};