defmodule PolicyService.Repo.Migrations.CreatePolicyApplications do
  use Ecto.Migration

  def change do
    create table(:policy_applications, primary_key: false) do
      add :id, :string, primary_key: true
      add :application_id, :string, null: false
      add :org_id, :string, null: false
      add :submitted_by, :string, null: false
      # "car" | "life" | "fire"
      add :policy_type, :string, null: false

      # Applicant — full map, shape varies by individual vs corporate
      add :applicant_info, :map, default: %{}

      # Policy-type-specific details — shape varies by policy_type
      add :policy_details, :map, default: %{}

      # Providers + quotes
      add :selected_providers, {:array, :string}, default: []
      add :quotes, :map, default: %{}

      # Accepted plan
      add :accepted_quote_id, :string
      add :accepted_plan_id, :string
      add :accepted_provider_id, :string
      add :accepted_by, :string
      add :accepted_at, :utc_datetime_usec

      # Solicitation
      add :solicitation_id, :string
      add :solicitation_s3_key, :string

      # Issued policy
      add :policy_number, :string
      add :premium, :decimal
      add :effective_date, :date
      add :expiry_date, :date

      # Status + timestamps
      add :status, :string, null: false
      add :submitted_at, :utc_datetime_usec
      add :solicitation_sent_at, :utc_datetime_usec
      add :issued_at, :utc_datetime_usec

      timestamps(type: :utc_datetime_usec)
    end

    create index(:policy_applications, [:org_id])
    create index(:policy_applications, [:policy_type])
    create index(:policy_applications, [:status])
    create index(:policy_applications, [:org_id, :status])
    create index(:policy_applications, [:org_id, :policy_type])
    create index(:policy_applications, [:org_id, :policy_type, :status])
  end
end