feat(EX-0000): switch LLM from OpenAI to DeepSeek

- Use DeepSeek API (api.deepseek.com) with openai-go SDK
- Replace OPENAI_MODEL env var with DEEPSEEK_MODEL
- Default model: deepseek-v4-pro
- API key read from DEEPSEEK_API_KEY env var

.env.example

@@ -9,4 +9,4 @@ APP_ADMIN_SECRET=
 APP_API_KEY=
 APP_SECRET_KEY=
 APP_SESSION_SECRET=
-APP_OPENAI_MODEL=gpt-5-nano
+APP_DEEPSEEK_MODEL=deepseek-v4-pro

docker-compose.dev.yml

@@ -15,7 +15,7 @@ services:
       APP_LOG_LEVEL: debug
       APP_PORT: 8000
       APP_ORIGINS: http://localhost:8000
-      APP_OPENAI_MODEL: gpt-5-nano
+      APP_DEEPSEEK_MODEL: deepseek-v4-pro
       APP_DATABASE_URL: postgres://rentease:rentease@db:5432/rentease?sslmode=disable
       APP_ADMIN: admin@example.com
       APP_ADMIN_SECRET: supersecret

go.mod

@@ -4,13 +4,13 @@ go 1.26
 
 require (
 	github.com/a-h/templ v0.3.1001
-	github.com/getsentry/sentry-go v0.44.1
+	github.com/getsentry/sentry-go v0.46.2
 	github.com/go-chi/chi/v5 v5.2.5
 	github.com/go-chi/cors v1.2.2
 	github.com/gorilla/sessions v1.4.0
 	github.com/joho/godotenv v1.5.1
 	github.com/jung-kurt/gofpdf/v2 v2.17.3
-	github.com/minio/minio-go/v7 v7.0.99
+	github.com/minio/minio-go/v7 v7.1.0
 	github.com/nicksnyder/go-i18n/v2 v2.6.1
 	github.com/rjNemo/underscore v0.10.0
 	github.com/stripe/stripe-go/v83 v83.2.1
@@ -19,11 +19,12 @@ require (
 )
 
 require (
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/klauspost/compress v1.18.5 // indirect
+	github.com/klauspost/compress v1.18.6 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/klauspost/crc32 v1.3.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
@@ -31,27 +32,28 @@ require (
 	github.com/minio/md5-simd v1.1.2 // indirect
 	github.com/philhofer/fwd v1.2.0 // indirect
 	github.com/rs/xid v1.6.0 // indirect
-	github.com/tidwall/gjson v1.18.0 // indirect
+	github.com/tidwall/gjson v1.19.0 // indirect
 	github.com/tidwall/match v1.2.0 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
 	github.com/tidwall/sjson v1.2.5 // indirect
-	github.com/tinylib/msgp v1.6.3 // indirect
+	github.com/tinylib/msgp v1.6.4 // indirect
+	github.com/zeebo/xxh3 v1.1.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/crypto v0.49.0 // indirect
+	golang.org/x/crypto v0.51.0 // indirect
-	golang.org/x/net v0.52.0 // indirect
+	golang.org/x/net v0.54.0 // indirect
 )
 
 require (
 	github.com/gorilla/securecookie v1.1.2 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx/v5 v5.9.1 // indirect
+	github.com/jackc/pgx/v5 v5.9.2 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/openai/openai-go v1.12.0
 	github.com/sethvargo/go-envconfig v1.3.0
 	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/sys v0.44.0 // indirect
-	golang.org/x/text v0.35.0
+	golang.org/x/text v0.37.0
 )

go.sum

@@ -2,14 +2,16 @@ github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk
 github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/a-h/templ v0.3.1001 h1:yHDTgexACdJttyiyamcTHXr2QkIeVF1MukLy44EAhMY=
 github.com/a-h/templ v0.3.1001/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/getsentry/sentry-go v0.44.1 h1:/cPtrA5qB7uMRrhgSn9TYtcEF36auGP3Y6+ThvD/yaI=
+github.com/getsentry/sentry-go v0.46.2 h1:1jhYwrKGa3sIpo/y5iDNXS5wDoT7I1KNzMHrnK6ojns=
-github.com/getsentry/sentry-go v0.44.1/go.mod h1:XDotiNZbgf5U8bPDUAfvcFmOnMQQceESxyKaObSssW0=
+github.com/getsentry/sentry-go v0.46.2/go.mod h1:evVbw2qotNUdYG8KxXbAdjOQWWvWIwKxpjdZZIvcIPw=
 github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
 github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
 github.com/go-chi/cors v1.2.2 h1:Jmey33TE+b+rB7fT8MUy1u0I4L+NARQlK6LhzKPSyQE=
@@ -32,8 +34,8 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.9.1 h1:uwrxJXBnx76nyISkhr33kQLlUqjv7et7b9FjCen/tdc=
+github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw=
-github.com/jackc/pgx/v5 v5.9.1/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
+github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
@@ -44,8 +46,8 @@ github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/jung-kurt/gofpdf/v2 v2.17.3 h1:otZXZby2gXJ7uU6pzprXHq/R57lsHLi0WtH79VabWxY=
 github.com/jung-kurt/gofpdf/v2 v2.17.3/go.mod h1:Qx8ZNg4cNsO5i6uLDiBngnm+ii/FjtAqjRNO6drsoYU=
-github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
+github.com/klauspost/compress v1.18.6 h1:2jupLlAwFm95+YDR+NwD2MEfFO9d4z4Prjl1XXDjuao=
-github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
+github.com/klauspost/compress v1.18.6/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
 github.com/klauspost/cpuid/v2 v2.0.1/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
 github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
@@ -59,8 +61,8 @@ github.com/minio/crc64nvme v1.1.1 h1:8dwx/Pz49suywbO+auHCBpCtlW1OfpcLN7wYgVR6wAI
 github.com/minio/crc64nvme v1.1.1/go.mod h1:eVfm2fAzLlxMdUGc0EEBGSMmPwmXD5XiNRpnu9J3bvg=
 github.com/minio/md5-simd v1.1.2 h1:Gdi1DZK69+ZVMoNHRXJyNcxrMA4dSxoYHZSQbirFg34=
 github.com/minio/md5-simd v1.1.2/go.mod h1:MzdKDxYpY2BT9XQFocsiZf/NKVtR7nkE4RoEpN+20RM=
-github.com/minio/minio-go/v7 v7.0.99 h1:2vH/byrwUkIpFQFOilvTfaUpvAX3fEFhEzO+DR3DlCE=
+github.com/minio/minio-go/v7 v7.1.0 h1:QEt5IStDpxgGjEdtOgpiZ5QhmSl3ax7qy61vi2SwHO8=
-github.com/minio/minio-go/v7 v7.0.99/go.mod h1:EtGNKtlX20iL2yaYnxEigaIvj0G0GwSDnifnG8ClIdw=
+github.com/minio/minio-go/v7 v7.1.0/go.mod h1:Dm7WS1AgLmBa0NcQD6SeJnJf+K/EUW3GR7Ks6olB3OA=
 github.com/nicksnyder/go-i18n/v2 v2.6.1 h1:JDEJraFsQE17Dut9HFDHzCoAWGEQJom5s0TRd17NIEQ=
 github.com/nicksnyder/go-i18n/v2 v2.6.1/go.mod h1:Vee0/9RD3Quc/NmwEjzzD7VTZ+Ir7QbXocrkhOzmUKA=
 github.com/openai/openai-go v1.12.0 h1:NBQCnXzqOTv5wsgNC36PrFEiskGfO5wccfCWDo9S1U0=
@@ -89,8 +91,8 @@ github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD
 github.com/stripe/stripe-go/v83 v83.2.1 h1:8WPhpMjr8VyMWKUsCMoVvlWxYazuL5edajKX/RulfbA=
 github.com/stripe/stripe-go/v83 v83.2.1/go.mod h1:nRyDcLrJtwPPQUnKAFs9Bt1NnQvNhNiF6V19XHmPISE=
 github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
-github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
+github.com/tidwall/gjson v1.19.0 h1:xwxm7n691Uf3u5OFjzngavjGTh55KX5q/9w9xHW88JU=
-github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/gjson v1.19.0/go.mod h1:V37/opeE/JbLUOfH0QTXiNez2l0RUjYUhpT4szFQAfc=
 github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
 github.com/tidwall/match v1.2.0 h1:0pt8FlkOwjN2fPt4bIl4BoNxb98gGHN2ObFEDkrfZnM=
 github.com/tidwall/match v1.2.0/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
@@ -99,22 +101,26 @@ github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
 github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
 github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
-github.com/tinylib/msgp v1.6.3 h1:bCSxiTz386UTgyT1i0MSCvdbWjVW+8sG3PjkGsZQt4s=
+github.com/tinylib/msgp v1.6.4 h1:mOwYbyYDLPj35mkA2BjjYejgJk9BuHxDdvRnb6v2ZcQ=
-github.com/tinylib/msgp v1.6.3/go.mod h1:RSp0LW9oSxFut3KzESt5Voq4GVWyS+PSulT77roAqEA=
+github.com/tinylib/msgp v1.6.4/go.mod h1:RSp0LW9oSxFut3KzESt5Voq4GVWyS+PSulT77roAqEA=
+github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
+github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
+github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs=
+github.com/zeebo/xxh3 v1.1.0/go.mod h1:IisAie1LELR4xhVinxWS5+zf1lA4p0MW4T+w+W07F5s=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
-golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
+golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
-golang.org/x/crypto v0.49.0/go.mod h1:ErX4dUh2UM+CFYiXZRTcMpEcN8b/1gxEuv3nODoYtCA=
+golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
-golang.org/x/net v0.52.0 h1:He/TN1l0e4mmR3QqHMT2Xab3Aj3L9qjbhRm78/6jrW0=
+golang.org/x/net v0.54.0 h1:2zJIZAxAHV/OHCDTCOHAYehQzLfSXuf/5SoL/Dv6w/w=
-golang.org/x/net v0.52.0/go.mod h1:R1MAz7uMZxVMualyPXb+VaqGSa3LIaUqk0eEt3w36Sw=
+golang.org/x/net v0.54.0/go.mod h1:Sj4oj8jK6XmHpBZU/zWHw3BV3abl4Kvi+Ut7cQcY+cQ=
 golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
 golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
-golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.44.0 h1:ildZl3J4uzeKP07r2F++Op7E9B29JRUy+a27EibtBTQ=
-golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.44.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
-golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8=
+golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
-golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA=
+golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

internal/config/config.go

@@ -26,8 +26,8 @@ type Config struct {
 	Port int `env:"PORT, default=4200"`
 	// SentryDsn is the DSN for Sentry error reporting
 	SentryDsn string `env:"SENTRY_DSN"`
-	// OpenAIModel is the OpenAI model used by the booking parser
+	// DeepSeekModel is the DeepSeek model used by the booking parser
-	OpenAIModel string `env:"OPENAI_MODEL, default=gpt-5-nano"`
+	DeepSeekModel string `env:"DEEPSEEK_MODEL, default=deepseek-v4-pro"`
 	// Auth
 	// Admin is the email used to access the admin panel
 	Admin string `env:"ADMIN, required"`

internal/driver/parser/client.go

@@ -5,9 +5,11 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"os"
 	"time"
 
 	"github.com/openai/openai-go"
+	"github.com/openai/openai-go/option"
 	"github.com/openai/openai-go/responses"
 
 	"github.com/rjNemo/rentease/internal/service/booking"
@@ -21,8 +23,11 @@ type BookingAgentParser struct {
 
 func NewBookingAgentParser(model string) *BookingAgentParser {
 	return &BookingAgentParser{
-		llmClient: openai.NewClient(),
+		llmClient: openai.NewClient(
-		model:     model,
+			option.WithBaseURL("https://api.deepseek.com"),
+			option.WithAPIKey(os.Getenv("DEEPSEEK_API_KEY")),
+		),
+		model: model,
 		systemPrompt: `		Extract the following fields from the booking content and return a JSON object with this exact structure (all fields required, use null or empty string if not available):
 		
 		{
@@ -65,7 +70,7 @@ type ResponseData struct {
 }
 
 func (p *BookingAgentParser) Parse(rawContent string) (*booking.Booking, error) {
-	log.Println("sending request to OpenAI LLM parser")
+	log.Println("sending request to DeepSeek LLM parser")
 
 	ctx := context.Background()
 
@@ -76,7 +81,7 @@ func (p *BookingAgentParser) Parse(rawContent string) (*booking.Booking, error)
 		Model: p.model,
 	})
 	if err != nil {
-		return nil, fmt.Errorf("error sending request to OpenAI: %w", err)
+		return nil, fmt.Errorf("error sending request to DeepSeek: %w", err)
 	}
 
 	var r struct {
@@ -86,7 +91,7 @@ func (p *BookingAgentParser) Parse(rawContent string) (*booking.Booking, error)
 	// The LLM is instructed to return the JSON for ResponseData directly, so parse it
 	err = json.Unmarshal([]byte(resp.OutputText()), &r)
 	if err != nil {
-		return nil, fmt.Errorf("error decoding response from OpenAI: %w", err)
+		return nil, fmt.Errorf("error decoding response from DeepSeek: %w", err)
 	}
 
 	var b booking.Booking

internal/driver/parser/parser_test.go

@@ -47,7 +47,7 @@ func TestBookingAgentParser_Parse(t *testing.T) {
       Les conversations avec vos clients apparaîtront ici.
        Booking.com reçoit tous les messages écrits ici et les traite selon sa Charte de confidentialité et informations sur les cookies    Conditions   `
 
-	parser := NewBookingAgentParser("gpt-5-nano")
+	parser := NewBookingAgentParser("deepseek-v4-pro")
 	booking, err := parser.Parse(input)
 	if err != nil {
 		t.Fatalf("Parse failed: %v", err)

internal/server/handle_api_sync.go

@@ -21,6 +21,7 @@ func handleSync(bs *booking.Service) http.HandlerFunc {
 		slog.Info("received booking sync request from booking")
 		body, err := io.ReadAll(r.Body)
 		if err != nil {
+			slog.Error("failed to read request body", slog.Any("error", err))
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
@@ -28,12 +29,14 @@ func handleSync(bs *booking.Service) http.HandlerFunc {
 
 		bookingInfo := new(BookingInfo)
 		if err := json.Unmarshal(body, bookingInfo); err != nil {
+			slog.Error("failed to unmarshal request JSON", slog.Any("error", err), slog.String("body", string(body)))
 			http.Error(w, fmt.Sprintf("error unmarshalling JSON: %s", err), http.StatusInternalServerError)
 			return
 		}
 
 		b, err := bs.ParseFromAPI(bookingInfo.Content)
 		if err != nil {
+			slog.Error("failed to parse booking from API", slog.Any("error", err))
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
@@ -65,6 +68,7 @@ func handleCreateBooking(bs *booking.Service) http.HandlerFunc {
 		slog.Info("received booking sync request from booking")
 		body, err := io.ReadAll(r.Body)
 		if err != nil {
+			slog.Error("failed to read request body", slog.Any("error", err))
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
@@ -74,12 +78,14 @@ func handleCreateBooking(bs *booking.Service) http.HandlerFunc {
 
 		bookingInfo := new(BookingInfo)
 		if err := json.Unmarshal(body, bookingInfo); err != nil {
+			slog.Error("failed to unmarshal request JSON", slog.Any("error", err), slog.String("body", string(body)))
 			http.Error(w, fmt.Sprintf("error unmarshalling JSON: %s", err), http.StatusInternalServerError)
 			return
 		}
 
 		b, err := bs.ParseFromAPI(bookingInfo.Content)
 		if err != nil {
+			slog.Error("failed to parse booking from API", slog.Any("error", err))
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}

main.go

@@ -77,7 +77,7 @@ func run(ctx context.Context, appConfig *config.Config, appLogger *slog.Logger)
 		return fmt.Errorf("error starting invoice storage %w", err)
 	}
 
-	parsingClient := parser.NewBookingAgentParser(appConfig.OpenAIModel)
+	parsingClient := parser.NewBookingAgentParser(appConfig.DeepSeekModel)
 
 	var stripeClient payment.StripeClient
 	if appConfig.StripeSecretKey != "" {