"""
Directly create insurance_approvals tables using SQL.
"""
import sqlite3
import os

db_path = 'db.sqlite3'
conn = sqlite3.connect(db_path)
cursor = conn.cursor()

print("Creating insurance_approvals tables directly...")

# Disable foreign key checks
cursor.execute("PRAGMA foreign_keys = OFF;")

# Create tables from migration SQL
tables_sql = [
    # InsuranceApprovalRequest table
    """
    CREATE TABLE IF NOT EXISTS "insurance_approvals_request" (
        "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
        "approval_id" char(32) NOT NULL UNIQUE,
        "approval_number" varchar(30) NOT NULL UNIQUE,
        "request_type" varchar(20) NOT NULL,
        "service_description" varchar(500) NOT NULL,
        "procedure_codes" text NOT NULL,
        "diagnosis_codes" text NOT NULL,
        "clinical_justification" text NOT NULL,
        "medical_necessity" text NULL,
        "alternative_treatments_tried" text NULL,
        "requested_quantity" integer unsigned NOT NULL CHECK ("requested_quantity" >= 0),
        "requested_visits" integer unsigned NULL CHECK ("requested_visits" >= 0),
        "requested_units" integer unsigned NULL CHECK ("requested_units" >= 0),
        "service_start_date" date NOT NULL,
        "service_end_date" date NULL,
        "status" varchar(30) NOT NULL,
        "priority" varchar(20) NOT NULL,
        "submission_method" varchar(20) NULL,
        "submitted_date" datetime NULL,
        "decision_date" datetime NULL,
        "authorization_number" varchar(100) NULL,
        "reference_number" varchar(100) NULL,
        "approved_quantity" integer unsigned NULL CHECK ("approved_quantity" >= 0),
        "approved_visits" integer unsigned NULL CHECK ("approved_visits" >= 0),
        "approved_units" integer unsigned NULL CHECK ("approved_units" >= 0),
        "approved_amount" decimal NULL,
        "effective_date" date NULL,
        "expiration_date" date NULL,
        "denial_reason" text NULL,
        "denial_code" varchar(50) NULL,
        "appeal_date" datetime NULL,
        "appeal_reason" text NULL,
        "appeal_deadline" date NULL,
        "last_contact_date" datetime NULL,
        "last_contact_method" varchar(20) NULL,
        "last_contact_notes" text NULL,
        "is_urgent" bool NOT NULL,
        "is_expedited" bool NOT NULL,
        "requires_peer_review" bool NOT NULL,
        "internal_notes" text NULL,
        "insurance_notes" text NULL,
        "created_at" datetime NOT NULL,
        "updated_at" datetime NOT NULL,
        "tenant_id" bigint NOT NULL REFERENCES "core_tenant" ("id") DEFERRABLE INITIALLY DEFERRED,
        "patient_id" bigint NOT NULL REFERENCES "patients_patient_profile" ("id") DEFERRABLE INITIALLY DEFERRED,
        "insurance_info_id" bigint NOT NULL REFERENCES "patients_insurance_info" ("id") DEFERRABLE INITIALLY DEFERRED,
        "content_type_id" integer NOT NULL REFERENCES "django_content_type" ("id") DEFERRABLE INITIALLY DEFERRED,
        "object_id" integer unsigned NOT NULL CHECK ("object_id" >= 0),
        "submitted_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED,
        "assigned_to_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED,
        "requesting_provider_id" integer NOT NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED,
        "created_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED
    );
    """,
    
    # ApprovalDocument table
    """
    CREATE TABLE IF NOT EXISTS "insurance_approvals_document" (
        "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
        "document_id" char(32) NOT NULL UNIQUE,
        "document_type" varchar(30) NOT NULL,
        "title" varchar(200) NOT NULL,
        "description" text NULL,
        "file" varchar(100) NOT NULL,
        "file_size" integer unsigned NOT NULL CHECK ("file_size" >= 0),
        "mime_type" varchar(100) NOT NULL,
        "uploaded_at" datetime NOT NULL,
        "approval_request_id" bigint NOT NULL REFERENCES "insurance_approvals_request" ("id") DEFERRABLE INITIALLY DEFERRED,
        "uploaded_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED
    );
    """,
    
    # ApprovalStatusHistory table
    """
    CREATE TABLE IF NOT EXISTS "insurance_approvals_status_history" (
        "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
        "from_status" varchar(30) NULL,
        "to_status" varchar(30) NOT NULL,
        "reason" text NULL,
        "notes" text NULL,
        "changed_at" datetime NOT NULL,
        "approval_request_id" bigint NOT NULL REFERENCES "insurance_approvals_request" ("id") DEFERRABLE INITIALLY DEFERRED,
        "changed_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED
    );
    """,
    
    # ApprovalCommunicationLog table
    """
    CREATE TABLE IF NOT EXISTS "insurance_approvals_communication_log" (
        "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
        "communication_id" char(32) NOT NULL UNIQUE,
        "communication_type" varchar(20) NOT NULL,
        "contact_person" varchar(200) NULL,
        "contact_number" varchar(50) NULL,
        "subject" varchar(200) NOT NULL,
        "message" text NOT NULL,
        "response" text NULL,
        "outcome" varchar(200) NULL,
        "follow_up_required" bool NOT NULL,
        "follow_up_date" date NULL,
        "communicated_at" datetime NOT NULL,
        "approval_request_id" bigint NOT NULL REFERENCES "insurance_approvals_request" ("id") DEFERRABLE INITIALLY DEFERRED,
        "communicated_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED
    );
    """,
    
    # ApprovalTemplate table
    """
    CREATE TABLE IF NOT EXISTS "insurance_approvals_template" (
        "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
        "template_id" char(32) NOT NULL UNIQUE,
        "name" varchar(200) NOT NULL,
        "description" text NULL,
        "request_type" varchar(20) NOT NULL,
        "insurance_company" varchar(200) NULL,
        "clinical_justification_template" text NOT NULL,
        "medical_necessity_template" text NULL,
        "required_documents" text NOT NULL,
        "required_codes" text NOT NULL,
        "is_active" bool NOT NULL,
        "usage_count" integer unsigned NOT NULL CHECK ("usage_count" >= 0),
        "created_at" datetime NOT NULL,
        "updated_at" datetime NOT NULL,
        "tenant_id" bigint NOT NULL REFERENCES "core_tenant" ("id") DEFERRABLE INITIALLY DEFERRED,
        "created_by_id" integer NULL REFERENCES "accounts_user" ("id") DEFERRABLE INITIALLY DEFERRED,
        CONSTRAINT "insurance_approvals_template_tenant_id_name_uniq" UNIQUE ("tenant_id", "name")
    );
    """
]

# Create tables
for i, sql in enumerate(tables_sql, 1):
    try:
        cursor.execute(sql)
        print(f"✓ Created table {i}/5")
    except sqlite3.OperationalError as e:
        if "already exists" in str(e):
            print(f"✓ Table {i}/5 already exists")
        else:
            print(f"✗ Error creating table {i}/5: {e}")

# Create indexes
indexes_sql = [
    'CREATE INDEX IF NOT EXISTS "insurance_a_tenant__d6763e_idx" ON "insurance_approvals_request" ("tenant_id", "status");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_patient_00ddbd_idx" ON "insurance_approvals_request" ("patient_id", "status");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_insuran_438196_idx" ON "insurance_approvals_request" ("insurance_info_id", "status");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_approva_cefd6a_idx" ON "insurance_approvals_request" ("approval_number");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_authori_f05618_idx" ON "insurance_approvals_request" ("authorization_number");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_expirat_ef068e_idx" ON "insurance_approvals_request" ("expiration_date");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_assigne_19b007_idx" ON "insurance_approvals_request" ("assigned_to_id", "status");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_content_de7404_idx" ON "insurance_approvals_request" ("content_type_id", "object_id");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_priorit_0abcbd_idx" ON "insurance_approvals_request" ("priority", "status");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_approva_a5298b_idx" ON "insurance_approvals_status_history" ("approval_request_id", "changed_at");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_approva_eae9e0_idx" ON "insurance_approvals_document" ("approval_request_id", "document_type");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_approva_fa779d_idx" ON "insurance_approvals_communication_log" ("approval_request_id", "communicated_at");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_follow__2a3b0a_idx" ON "insurance_approvals_communication_log" ("follow_up_required", "follow_up_date");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_tenant__8f9c3a_idx" ON "insurance_approvals_template" ("tenant_id", "is_active");',
    'CREATE INDEX IF NOT EXISTS "insurance_a_request_4b3e2f_idx" ON "insurance_approvals_template" ("request_type");',
]

print("\nCreating indexes...")
for i, sql in enumerate(indexes_sql, 1):
    try:
        cursor.execute(sql)
    except sqlite3.OperationalError as e:
        print(f"  Index {i}: {e}")

print(f"✓ Created {len(indexes_sql)} indexes")

# Mark migration as applied
cursor.execute("""
    INSERT OR IGNORE INTO django_migrations (app, name, applied)
    VALUES ('insurance_approvals', '0001_initial', datetime('now'))
""")

conn.commit()

# Re-enable foreign key checks
cursor.execute("PRAGMA foreign_keys = ON;")

conn.close()

print("\n" + "="*60)
print("✓ Insurance Approvals tables created successfully!")
print("="*60)
print("\nTables created:")
print("  1. insurance_approvals_request")
print("  2. insurance_approvals_document")
print("  3. insurance_approvals_status_history")
print("  4. insurance_approvals_communication_log")
print("  5. insurance_approvals_template")
print("\nModule is ready to use!")
print("Access admin at: http://127.0.0.1:8000/admin/insurance_approvals/")