# Scenario 9 — Carlos starts step, Bob (supervisor) reassigns to Mike.
# Verify chatter audit trail.

from odoo import fields
W = env['fp.direct.order.wizard']
Line = env['fp.direct.order.line']
P = env['res.partner']
Part = env['fp.part.catalog']
target = P.browse(2529)
part = Part.search([('x_fc_default_coating_config_id', '!=', False)], limit=1)

w = W.create({
    'partner_id': target.id, 'po_pending': True,
    'po_number': 'PO-S9-' + fields.Datetime.now().strftime('%H%M%S'),
    'invoice_strategy': 'net_terms',
})
w._onchange_partner_id()
Line.create({
    'wizard_id': w.id, 'part_catalog_id': part.id,
    'coating_config_id': part.x_fc_default_coating_config_id.id,
    'quantity': 5, 'unit_price': 20.0,
})
r = w.action_create_order()
so = env['sale.order'].browse(r['res_id'])
so.action_confirm()
job = env['fp.job'].search([('sale_order_id', '=', so.id)], limit=1)
step = job.step_ids.sorted('sequence')[0]

# Pretend Carlos owns this step.
step.assigned_user_id = env.user.id
step.button_start()
print(f'[Carlos] Started step "{step.name}" (state={step.state})')
print(f'  assigned_user_id: {step.assigned_user_id.name}')

# Count chatter messages on the JOB before Bob reassigns.
before_count = len(job.message_ids)
print(f'  Job chatter messages before reassign: {before_count}')

# Bob reassigns to "another user" — for the test we just write to ourselves
# to simulate, but the field write IS the operation.
print()
print('[Bob] Reassigning step to a different operator...')
# Use a different user if available.
other = env['res.users'].search([('id', '!=', env.user.id), ('share', '=', False)], limit=1)
if not other:
    other = env.user  # fallback — at least the write fires
step.assigned_user_id = other.id
step.invalidate_recordset()
job.invalidate_recordset()

after_count = len(job.message_ids)
print(f'  After reassign: assigned_user_id={step.assigned_user_id.name}')
print(f'  Job chatter messages: {after_count} (delta: {after_count - before_count})')

reassign_msgs = job.message_ids.filtered(
    lambda m: 'reassign' in (m.body or '').lower()
)
print(f'  Reassign-flagged chatter posts: {len(reassign_msgs)}')

if reassign_msgs:
    print(f'  ✓ Audit trail captured')
else:
    print(f'  ❌ GAP: silent reassignment, no chatter trail')

env.cr.commit()