From 87044a747b47bd83249d61a45842c7f7b2eae56d Mon Sep 17 00:00:00 2001
From: soryu <soryu@soryu.co>
Date: Sun, 11 Jan 2026 05:52:14 +0000
Subject:  Contract system

---
 makima/frontend/src/hooks/useContracts.ts | 308 ++++++++++++++++++++++++++++++
 1 file changed, 308 insertions(+)
 create mode 100644 makima/frontend/src/hooks/useContracts.ts

(limited to 'makima/frontend/src/hooks/useContracts.ts')

diff --git a/makima/frontend/src/hooks/useContracts.ts b/makima/frontend/src/hooks/useContracts.ts
new file mode 100644
index 0000000..f803527
--- /dev/null
+++ b/makima/frontend/src/hooks/useContracts.ts
@@ -0,0 +1,308 @@
+import { useState, useCallback, useEffect } from "react";
+import {
+  listContracts,
+  getContract,
+  createContract,
+  updateContract,
+  deleteContract,
+  changeContractPhase,
+  getContractEvents,
+  addRemoteRepository,
+  addLocalRepository,
+  createManagedRepository,
+  deleteContractRepository,
+  setRepositoryPrimary,
+  addTaskToContract,
+  removeTaskFromContract,
+  VersionConflictError,
+  type ContractSummary,
+  type ContractWithRelations,
+  type ContractEvent,
+  type ContractRepository,
+  type ContractPhase,
+  type CreateContractRequest,
+  type UpdateContractRequest,
+  type AddRemoteRepositoryRequest,
+  type AddLocalRepositoryRequest,
+  type CreateManagedRepositoryRequest,
+} from "../lib/api";
+
+export interface ConflictState {
+  hasConflict: boolean;
+  expectedVersion: number;
+  actualVersion: number;
+}
+
+export function useContracts() {
+  const [contracts, setContracts] = useState<ContractSummary[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [conflict, setConflict] = useState<ConflictState | null>(null);
+
+  const fetchContracts = useCallback(async () => {
+    setLoading(true);
+    setError(null);
+    try {
+      const response = await listContracts();
+      setContracts(response.contracts);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to fetch contracts");
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  const fetchContract = useCallback(
+    async (id: string): Promise<ContractWithRelations | null> => {
+      setError(null);
+      try {
+        return await getContract(id);
+      } catch (e) {
+        setError(e instanceof Error ? e.message : "Failed to fetch contract");
+        return null;
+      }
+    },
+    []
+  );
+
+  const saveContract = useCallback(
+    async (data: CreateContractRequest): Promise<ContractSummary | null> => {
+      setError(null);
+      try {
+        const contract = await createContract(data);
+        await fetchContracts(); // Refresh list
+        return contract;
+      } catch (e) {
+        setError(e instanceof Error ? e.message : "Failed to save contract");
+        return null;
+      }
+    },
+    [fetchContracts]
+  );
+
+  const editContract = useCallback(
+    async (
+      id: string,
+      data: UpdateContractRequest
+    ): Promise<ContractSummary | null> => {
+      setError(null);
+      setConflict(null);
+      try {
+        const contract = await updateContract(id, data);
+        await fetchContracts(); // Refresh list
+        return contract;
+      } catch (e) {
+        if (e instanceof VersionConflictError) {
+          setConflict({
+            hasConflict: true,
+            expectedVersion: e.expectedVersion,
+            actualVersion: e.actualVersion,
+          });
+          return null;
+        }
+        setError(e instanceof Error ? e.message : "Failed to update contract");
+        return null;
+      }
+    },
+    [fetchContracts]
+  );
+
+  const clearConflict = useCallback(() => {
+    setConflict(null);
+  }, []);
+
+  const removeContract = useCallback(
+    async (id: string): Promise<boolean> => {
+      setError(null);
+      try {
+        await deleteContract(id);
+        await fetchContracts(); // Refresh list
+        return true;
+      } catch (e) {
+        setError(e instanceof Error ? e.message : "Failed to delete contract");
+        return false;
+      }
+    },
+    [fetchContracts]
+  );
+
+  const changePhase = useCallback(
+    async (
+      id: string,
+      phase: ContractPhase
+    ): Promise<ContractSummary | null> => {
+      setError(null);
+      try {
+        const contract = await changeContractPhase(id, phase);
+        await fetchContracts(); // Refresh list
+        return contract;
+      } catch (e) {
+        setError(e instanceof Error ? e.message : "Failed to change phase");
+        return null;
+      }
+    },
+    [fetchContracts]
+  );
+
+  const fetchEvents = useCallback(
+    async (id: string): Promise<ContractEvent[]> => {
+      setError(null);
+      try {
+        return await getContractEvents(id);
+      } catch (e) {
+        setError(e instanceof Error ? e.message : "Failed to fetch events");
+        return [];
+      }
+    },
+    []
+  );
+
+  // Repository management
+  const addRemoteRepo = useCallback(
+    async (
+      contractId: string,
+      data: AddRemoteRepositoryRequest
+    ): Promise<ContractRepository | null> => {
+      setError(null);
+      try {
+        return await addRemoteRepository(contractId, data);
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to add remote repository"
+        );
+        return null;
+      }
+    },
+    []
+  );
+
+  const addLocalRepo = useCallback(
+    async (
+      contractId: string,
+      data: AddLocalRepositoryRequest
+    ): Promise<ContractRepository | null> => {
+      setError(null);
+      try {
+        return await addLocalRepository(contractId, data);
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to add local repository"
+        );
+        return null;
+      }
+    },
+    []
+  );
+
+  const createManagedRepo = useCallback(
+    async (
+      contractId: string,
+      data: CreateManagedRepositoryRequest
+    ): Promise<ContractRepository | null> => {
+      setError(null);
+      try {
+        return await createManagedRepository(contractId, data);
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to create managed repository"
+        );
+        return null;
+      }
+    },
+    []
+  );
+
+  const removeRepo = useCallback(
+    async (contractId: string, repoId: string): Promise<boolean> => {
+      setError(null);
+      try {
+        await deleteContractRepository(contractId, repoId);
+        return true;
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to delete repository"
+        );
+        return false;
+      }
+    },
+    []
+  );
+
+  const setRepoPrimary = useCallback(
+    async (contractId: string, repoId: string): Promise<boolean> => {
+      setError(null);
+      try {
+        await setRepositoryPrimary(contractId, repoId);
+        return true;
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to set repository as primary"
+        );
+        return false;
+      }
+    },
+    []
+  );
+
+  // Task association
+  const addTask = useCallback(
+    async (contractId: string, taskId: string): Promise<boolean> => {
+      setError(null);
+      try {
+        await addTaskToContract(contractId, taskId);
+        return true;
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to add task to contract"
+        );
+        return false;
+      }
+    },
+    []
+  );
+
+  const removeTask = useCallback(
+    async (contractId: string, taskId: string): Promise<boolean> => {
+      setError(null);
+      try {
+        await removeTaskFromContract(contractId, taskId);
+        return true;
+      } catch (e) {
+        setError(
+          e instanceof Error ? e.message : "Failed to remove task from contract"
+        );
+        return false;
+      }
+    },
+    []
+  );
+
+  // Initial fetch
+  useEffect(() => {
+    fetchContracts();
+  }, [fetchContracts]);
+
+  return {
+    contracts,
+    loading,
+    error,
+    conflict,
+    clearConflict,
+    fetchContracts,
+    fetchContract,
+    saveContract,
+    editContract,
+    removeContract,
+    changePhase,
+    fetchEvents,
+    // Repository management
+    addRemoteRepo,
+    addLocalRepo,
+    createManagedRepo,
+    removeRepo,
+    setRepoPrimary,
+    // Task association
+    addTask,
+    removeTask,
+  };
+}
-- 
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