require "rails_helper"

RSpec.describe "Account API", type: :request do
  let!(:user) { User.create!(email: "account@example.com", name: "Account User", password: "Password123", role: "coach") }
  let(:auth_headers) do
    post "/api/v1/auth/login", params: { email: user.email, password: "Password123" }
    token = JSON.parse(response.body).fetch("access_token")
    { "Authorization" => "Bearer #{token}" }
  end

  describe "GET /api/v1/account" do
    it "returns the current user profile" do
      get "/api/v1/account", headers: auth_headers
      expect(response).to have_http_status(:ok)
      body = JSON.parse(response.body)
      expect(body).to include("email" => user.email, "name" => "Account User", "role" => "coach")
    end

    it "requires authentication" do
      get "/api/v1/account"
      expect(response).to have_http_status(:unauthorized)
    end
  end

  describe "PATCH /api/v1/account" do
    it "updates the name" do
      patch "/api/v1/account", params: { name: "Nuovo Nome" }, headers: auth_headers
      expect(response).to have_http_status(:ok)
      expect(JSON.parse(response.body)["name"]).to eq("Nuovo Nome")
      expect(user.reload.name).to eq("Nuovo Nome")
    end

    it "rejects a blank name" do
      patch "/api/v1/account", params: { name: "  " }, headers: auth_headers
      expect(response).to have_http_status(:unprocessable_entity)
    end
  end

  describe "PATCH /api/v1/account/password" do
    it "changes the password with the current password" do
      patch "/api/v1/account/password",
            params: {
              current_password: "Password123",
              password: "NewPass123",
              password_confirmation: "NewPass123"
            },
            headers: auth_headers
      expect(response).to have_http_status(:ok)
      expect(user.reload.authenticate("NewPass123")).to be_truthy
    end

    it "rejects an incorrect current password" do
      patch "/api/v1/account/password",
            params: {
              current_password: "wrong",
              password: "NewPass123",
              password_confirmation: "NewPass123"
            },
            headers: auth_headers
      expect(response).to have_http_status(:unprocessable_entity)
      expect(user.reload.authenticate("Password123")).to be_truthy
    end

    it "rejects a password that fails complexity rules" do
      patch "/api/v1/account/password",
            params: {
              current_password: "Password123",
              password: "newpass123",
              password_confirmation: "newpass123"
            },
            headers: auth_headers.merge("Accept-Language" => "en")
      expect(response).to have_http_status(:unprocessable_entity)
      expect(JSON.parse(response.body)["error"]).to match(/3 of/i)
      expect(user.reload.authenticate("Password123")).to be_truthy
    end

    it "rejects reusing the current password" do
      patch "/api/v1/account/password",
            params: {
              current_password: "Password123",
              password: "Password123",
              password_confirmation: "Password123"
            },
            headers: auth_headers.merge("Accept-Language" => "en")
      expect(response).to have_http_status(:unprocessable_entity)
      expect(JSON.parse(response.body)["error"]).to match(/different/i)
      expect(user.reload.authenticate("Password123")).to be_truthy
    end

    it "localizes password errors from Accept-Language" do
      patch "/api/v1/account/password",
            params: {
              current_password: "Password123",
              password: "Password123",
              password_confirmation: "Password123"
            },
            headers: auth_headers.merge("Accept-Language" => "it")
      expect(response).to have_http_status(:unprocessable_entity)
      expect(JSON.parse(response.body)["error"]).to eq("La nuova password deve essere diversa da quella attuale")
    end
  end

    describe "POST /api/v1/auth/password/forgot" do
    it "always returns ok and sends mail when the user exists" do
      expect {
        post "/api/v1/auth/password/forgot", params: { email: user.email }
      }.to change { ActionMailer::Base.deliveries.size }.by(1)
      expect(response).to have_http_status(:ok)
      expect(user.reload.password_reset_digest).to be_present
    end

    it "returns the same message for unknown emails" do
      expect {
        post "/api/v1/auth/password/forgot", params: { email: "nobody@example.com" }
      }.not_to change { ActionMailer::Base.deliveries.size }
      expect(response).to have_http_status(:ok)
    end

    it "localizes the response message from Accept-Language" do
      post "/api/v1/auth/password/forgot",
           params: { email: user.email },
           headers: { "Accept-Language" => "fr" }
      expect(response).to have_http_status(:ok)
      expect(JSON.parse(response.body)["message"]).to include("réinitialiser")
    end
  end
end