Build me a prototype "water sensor belt with LEDs and buzzer" with microcontroller programming

Belt with water sensors and LEDs Task: - Creating an electrical scheme - Purchasing the required parts. Advising the client on microcontroller - Construction of the prototype - Programming according to "Functionality". Clean programming for stable processes and low power consumption - Sending the proof video - Adjustments if necessary - Sending the schematic, instructions, prototype and program to the client. All rights are transferred to the client. Components: Belt with 4 water sensors, 4 RGB LEDs and 1 buzzer for beep. 1 on/off switch and 1 colour switch. Controlled by microcontroller or other suggestion Powered by 9V battery or similar Functionality: The belt is switched on with a switch (on/off). (dry) A beep (2 sec) and green LEDs (all LEDs during 2 sec) confirm that the belt is active and dry. (wet) If one or several of the sensors are wet when turned on, the belt will beep every 1 sec and the LEDs flash red once per second until the sensors are all dry. Once dry, as in "dry" a beep and the green LEDs are displayed. The belt (all LEDs) now lights up in pink or blue depending on the state of the colour switch. The colour can be changed with a switch (pink or blue). As soon as a water sensor gets wet, the corresponding LED goes out and a beep sounds (1 second). The LED of the sensor now stays off and the sensor is no longer active or is no longer taken into account. The same happens with the other LEDs as soon as the respective sensor gets wet. If the last water sensor gets wet, the respective LED goes out and the beep sounds (same as before). Also, since all sensors have now been activated/wet, a beep will sound (10 sec) and all LEDs will flash white (10 sec). The belt then goes into waiting mode. In waiting mode, the LEDs will flash yellow (1 per second) with no sound. The belt is switched off with the switch (on/off) and the waiting mode is ended and the program reset. precisions: If the on/off switch is switched off, the program is cancelled or reset. The colour switch can be activated at any time. The remaining active LEDs will then change colour