From 13a994b6cad0d4fc09bc963cdabf557d172dd7c6 Mon Sep 17 00:00:00 2001
From: Monk <61575072+MonkNo1@users.noreply.github.com>
Date: Wed, 17 May 2023 23:07:19 +0530
Subject: [PATCH] Create contract.sol

---
 contract.sol | 206 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 206 insertions(+)
 create mode 100644 contract.sol

diff --git a/contract.sol b/contract.sol
new file mode 100644
index 0000000..7ab40d3
--- /dev/null
+++ b/contract.sol
@@ -0,0 +1,206 @@
+pragma solidity ^0.8.14;
+contract drugcompany
+{
+    struct product
+    {
+        uint avail;
+        uint threosold;
+        uint rate;
+    }
+    mapping (uint => product)drugs;
+    address producer;
+    address drugmanager;
+    address hospitalmanager;
+    // uint public prodid=0;
+    uint orderdid=0;
+    struct order
+    {
+        uint hospid;
+        uint time;
+        uint drugid;
+        uint quantity;
+        uint amount;
+    }
+    mapping (uint => order)orders;
+    uint [] hospitals;
+    uint public income=0;
+       struct patient
+   {
+       uint hospid;
+   }
+   struct patient_log
+   {
+       uint patientid;
+       uint docid;
+       uint timestamp;
+       uint drugid;
+       uint amount;
+   }
+   event produced_drug_event(uint pid,uint a);
+   event added_drug_event(uint p,uint a,uint t,uint r);
+   event drug_bought_event(uint h,uint porid,uint req_amount,uint did,uint patid);
+   uint [] patientarr;
+   uint [] doctors;
+   mapping (uint => patient) patients;
+   mapping (uint => patient_log) logs;
+   uint logid=1;
+    modifier onlydm(address d)
+    {
+        require(d==drugmanager,"only drug manager is allowed");
+        _;
+    }
+    modifier onlyhm(address d)
+    {
+        require(d==hospitalmanager,"only hospital manager is allowed");
+        _;
+    }
+    function reg_producer(address w) public onlydm(msg.sender)
+    {
+        producer=w;
+    }
+    constructor(address hm)
+    {
+        drugmanager=msg.sender;
+        hospitalmanager=hm;
+    }
+    struct producer_content
+    {
+        uint amount;
+    }
+    mapping (uint => producer_content) produced_drug;
+    modifier onlyproducer(address j)
+    {
+        require(j==producer,"only producer is allowed");
+        _;
+    }
+    function add_produced_drug(uint pid,uint a) public onlyproducer(msg.sender)
+    {
+        produced_drug[pid].amount=a;
+        emit produced_drug_event(pid,a);
+    }
+    function reg_hos(uint y) public onlyhm(msg.sender)
+    {
+        hospitals.push(y);
+    }
+    function reg_patient(uint y,uint hi) public onlyhm(msg.sender)
+    {
+        patientarr.push(y);
+        patients[y].hospid=hi;
+    }
+        function reg_doctor(uint y) public onlyhm(msg.sender)
+    {
+        doctors.push(y);
+    }
+    modifier validam(uint d,uint p)
+    {
+        require(produced_drug[p].amount==d,"not correct data is entered");
+        _;
+    }
+    function add_drug(uint p,uint a,uint t,uint r) public onlydm(msg.sender) validam(a,p)
+    {
+       drugs[p].avail=a;
+        drugs[p].threosold=t;
+        drugs[p].rate=r;
+        // prodid+=1;
+        emit added_drug_event(p,a,t,r);
+    }
+    function update_avail(uint pi,uint k) public onlydm(msg.sender) validam(k,pi)
+    {
+        drugs[pi].avail+=k;
+    }
+    function valid_hos(uint j) private view returns(bool)
+    {
+        uint flag=0;
+        for(uint i=0;i<hospitals.length;i++)
+        {
+            if(hospitals[i]==j)
+            {
+                flag=1;
+                return true;
+            }
+        }
+        if (flag==0)
+        {
+            return false;
+        }
+    }
+        function valid_pait(uint j) private view returns(bool)
+    {
+        uint flag=0;
+        for(uint i=0;i<patientarr.length;i++)
+        {
+            if(patientarr[i]==j)
+            {
+                flag=1;
+                return true;
+            }
+        }
+        if (flag==0)
+        {
+            return false;
+        }
+    }
+        function valid_doctors(uint j) private view returns(bool)
+    {
+        uint flag=0;
+        for(uint i=0;i<doctors.length;i++)
+        {
+            if(doctors[i]==j)
+            {
+                flag=1;
+                return true;
+            }
+        }
+        if (flag==0)
+        {
+            return false;
+        }
+    }
+    modifier validhos(uint tr)
+    {
+        require(valid_hos(tr)==true,"it is not a valid hospital");
+        _;
+    }
+      modifier validp(uint tr)
+    {
+        require(valid_pait(tr)==true,"it is not a valid paitent");
+        _;
+    }
+      modifier validd(uint tr)
+    {
+        require(valid_doctors(tr)==true,"it is not a valid doctor");
+        _;
+    }
+    modifier meetavail(uint hy,uint k)
+    {
+        require(hy<= drugs[k].avail,"requested amount of drug is not available");
+        _;
+    }
+    modifier meetthros(uint k,uint hy)
+    {
+        require(hy< drugs[k].threosold,"requested amount is greater than the threesold");
+        _;
+    }
+      function buy_drug (uint h,uint porid,uint req_amount,uint did,uint patid) public validhos(h) meetavail(req_amount,porid) meetthros(porid,req_amount) validp(patid) validd(did)
+    {
+        drugs[porid].avail-=req_amount;
+        income+=(req_amount*drugs[porid].rate);
+        orders[orderdid].hospid=h;
+        orders[orderdid].time=block.timestamp;
+        orders[orderdid].drugid=porid;
+        orders[orderdid].quantity=req_amount;
+        orders[orderdid].amount=req_amount*drugs[porid].rate;
+        orderdid+=1;
+       logs[logid].patientid=patid;
+        logs[logid].docid=did;
+        logs[logid].timestamp=block.timestamp;
+        logs[logid].drugid=porid;
+        logs[logid].amount=req_amount;
+        logid+=1;
+        emit drug_bought_event(h,porid,req_amount,did,patid);
+    }
+    function drug_av(uint pid) view public returns(uint) 
+    {
+        return drugs[pid].avail;
+    }
+}